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  • mountable power ports

    From Christopher Howard@21:1/5 to All on Wed Mar 26 07:56:22 2025
    Hi, my project box is a large tin cookie box. I need to bring in +15V,
    -15V, and GND lines from my external bipolar power supply. (I was
    thinking I would have a separate bolt for the chassis ground, which
    would go off to a big ground bus bar near my workbench.) For the three
    lines from the power supply, I am wondering what would be the best (but economical) choice for a power connector to mount into the side of the
    project box. Something that sounded appealing was the spring speaker
    terminal clips I see on Amazon, but the downside there is they only come
    in pairs of two or four, rather than three, and they are color coded
    red/black which does not quite make sense here. I am inclined to leave
    the wires on the power supply itself bare on the end, rather than
    attaching some specialty connector to those.

    --
    Christopher Howard

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Don Y@21:1/5 to Christopher Howard on Wed Mar 26 09:40:51 2025
    On 3/26/2025 8:56 AM, Christopher Howard wrote:
    Hi, my project box is a large tin cookie box. I need to bring in +15V,
    -15V, and GND lines from my external bipolar power supply. (I was
    thinking I would have a separate bolt for the chassis ground, which
    would go off to a big ground bus bar near my workbench.) For the three
    lines from the power supply, I am wondering what would be the best (but economical) choice for a power connector to mount into the side of the project box. Something that sounded appealing was the spring speaker
    terminal clips I see on Amazon, but the downside there is they only come
    in pairs of two or four, rather than three, and they are color coded red/black which does not quite make sense here. I am inclined to leave
    the wires on the power supply itself bare on the end, rather than
    attaching some specialty connector to those.

    There's always the old benchtop standard of binding posts.
    This provides the most flexibility in connection -- by providing
    the least convenience! :< (you can buy dual banana plugs
    to mate with a pair of appropriately spaced binding posts;
    but, there is nothing to prevent you from plugging them
    "upside down")

    What sort of current carrying capacity do you require?
    There are lots of three-pin connectors available -- especially
    as your current handling requirements go down.

    Note that you will likely want to require the connector to
    be mated/unmated with power *off* if you have any concern
    over power sequencing (as many connectors won't guarantee
    which conductors(s) make/break first/last).

    Round will be preferable as you can just use a drill to make
    a clean hole (instead of needing a punch or resorting to a nibbler).

    If other similar connectors might be prevalent "nearby", you
    may want to avoid them (e.g., the ubiquitous barrel connectors)
    to avoid the possibility of confusion between which cable end
    mates with which device.

    And, should consider how much mechanical security you want (need);
    is there a risk that the connection may open if you are inclined to
    move the box to some other location while powered?

    I have been using a sturdy circular connector family for user-maintained connections around the house, similar to this: <https://www.theindustrymart.com/Upload/images/product/4-pin-metal-aviation-connectors-plugs-gx25-male-female-docking-cable-straight-circular-aviation-connector.jpg>
    They are available with a variety of pincounts in the same basic
    size. The threaded collar ensures they can remain mated regardless
    of orientation and (minor) tugs on the cables.

    They are also large enough to make assembling/repairing a cable assembly
    easy to do without special tools (as they have to be assembled and
    repaired in the field).

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt@21:1/5 to Christopher Howard on Wed Mar 26 17:17:19 2025
    On 3/26/25 16:56, Christopher Howard wrote:
    Hi, my project box is a large tin cookie box. I need to bring in +15V,
    -15V, and GND lines from my external bipolar power supply. (I was
    thinking I would have a separate bolt for the chassis ground, which
    would go off to a big ground bus bar near my workbench.) For the three
    lines from the power supply, I am wondering what would be the best (but economical) choice for a power connector to mount into the side of the project box. Something that sounded appealing was the spring speaker
    terminal clips I see on Amazon, but the downside there is they only come
    in pairs of two or four, rather than three, and they are color coded red/black which does not quite make sense here. I am inclined to leave
    the wires on the power supply itself bare on the end, rather than
    attaching some specialty connector to those.


    there are million of different connectors, leaving the wires bare is
    just asking for getting the connections wrong ..

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From john larkin@21:1/5 to christopher@librehacker.com on Wed Mar 26 12:53:02 2025
    On Wed, 26 Mar 2025 07:56:22 -0800, Christopher Howard <christopher@librehacker.com> wrote:

    Hi, my project box is a large tin cookie box. I need to bring in +15V,
    -15V, and GND lines from my external bipolar power supply. (I was
    thinking I would have a separate bolt for the chassis ground, which
    would go off to a big ground bus bar near my workbench.) For the three
    lines from the power supply, I am wondering what would be the best (but >economical) choice for a power connector to mount into the side of the >project box. Something that sounded appealing was the spring speaker
    terminal clips I see on Amazon, but the downside there is they only come
    in pairs of two or four, rather than three, and they are color coded >red/black which does not quite make sense here. I am inclined to leave
    the wires on the power supply itself bare on the end, rather than
    attaching some specialty connector to those.

    Stereo phone plugs and jacks are nice connectors.

    What cookies did you use? I like the big Danish Butter Cookie cans,
    except that you have to empty them before you can put electronics
    inside.

    https://www.dropbox.com/scl/fi/rlve73r1yrwy87fbuhxiq/Z496_Can.jpg?rlkey=rfhu979c4dmybf2botjlje6er&raw=1

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Don Y@21:1/5 to Liz Tuddenham on Wed Mar 26 14:11:55 2025
    On 3/26/2025 1:50 PM, Liz Tuddenham wrote:
    Don Y <blockedofcourse@foo.invalid> wrote:

    On 3/26/2025 8:56 AM, Christopher Howard wrote:
    Hi, my project box is a large tin cookie box. I need to bring in +15V,
    -15V, and GND lines from my external bipolar power supply. (I was
    thinking I would have a separate bolt for the chassis ground, which
    would go off to a big ground bus bar near my workbench.) For the three
    lines from the power supply, I am wondering what would be the best (but
    economical) choice for a power connector to mount into the side of the
    project box. Something that sounded appealing was the spring speaker
    terminal clips I see on Amazon, but the downside there is they only come >>> in pairs of two or four, rather than three, and they are color coded
    red/black which does not quite make sense here. I am inclined to leave
    the wires on the power supply itself bare on the end, rather than
    attaching some specialty connector to those.

    There's always the old benchtop standard of binding posts.

    I second this.

    Screw pillars with 4mm banana sockets in the centre. Available in a
    wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to plug-up and easy to see what you are doing so you don't make silly (and expensive) mistakes.

    Though if you are sloppy and let wire strands (think: non solid
    conductors) bridge the gap to the other post -- or, metallic items
    on the desktop -- you can be in for an unexpected surprise (esp
    if the power supply has any muscle)

    Use matching colour-coded wires and plugs, so there is even less chance
    of a screw-up.

    There are two (primary) downsides:
    - they are physically large
    - they require deliberation when making (breaking!) connections
    (and, diligence to ensure the connection is SECURELY made)

    If sequencing of supplies is an issue, then one would have to
    impose self-discipline in how the attachments (and removals)
    were made.

    OTOH, there is no possibility of one signal momentarily connecting
    to an unintended signal on entry/removal as is the case in phone plugs.

    But, the added value is that one can dangle pigtails from them
    to daisy-chain the supply to other devices without having to
    fabricate a special cable. (this is when I drag out benchtop
    supplies instead of relying on "bricks" and their ilk.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Liz Tuddenham@21:1/5 to Don Y on Wed Mar 26 20:50:18 2025
    Don Y <blockedofcourse@foo.invalid> wrote:

    On 3/26/2025 8:56 AM, Christopher Howard wrote:
    Hi, my project box is a large tin cookie box. I need to bring in +15V, -15V, and GND lines from my external bipolar power supply. (I was
    thinking I would have a separate bolt for the chassis ground, which
    would go off to a big ground bus bar near my workbench.) For the three lines from the power supply, I am wondering what would be the best (but economical) choice for a power connector to mount into the side of the project box. Something that sounded appealing was the spring speaker terminal clips I see on Amazon, but the downside there is they only come
    in pairs of two or four, rather than three, and they are color coded red/black which does not quite make sense here. I am inclined to leave
    the wires on the power supply itself bare on the end, rather than
    attaching some specialty connector to those.

    There's always the old benchtop standard of binding posts.

    I second this.

    Screw pillars with 4mm banana sockets in the centre. Available in a
    wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to
    plug-up and easy to see what you are doing so you don't make silly (and expensive) mistakes.

    Use matching colour-coded wires and plugs, so there is even less chance
    of a screw-up.

    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Don Y@21:1/5 to Don Y on Wed Mar 26 14:14:22 2025
    On 3/26/2025 2:11 PM, Don Y wrote:

    There are two (primary) downsides:
    - they are physically large
    - they require deliberation when making (breaking!) connections
      (and, diligence to ensure the connection is SECURELY made)

    And, require EXPOSED dangling conductors -- even if banana plugs
    (which may be live, at some point)...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Lasse Langwadt@21:1/5 to john larkin on Wed Mar 26 23:32:47 2025
    On 3/26/25 20:53, john larkin wrote:
    On Wed, 26 Mar 2025 07:56:22 -0800, Christopher Howard <christopher@librehacker.com> wrote:

    Hi, my project box is a large tin cookie box. I need to bring in +15V,
    -15V, and GND lines from my external bipolar power supply. (I was
    thinking I would have a separate bolt for the chassis ground, which
    would go off to a big ground bus bar near my workbench.) For the three
    lines from the power supply, I am wondering what would be the best (but
    economical) choice for a power connector to mount into the side of the
    project box. Something that sounded appealing was the spring speaker
    terminal clips I see on Amazon, but the downside there is they only come
    in pairs of two or four, rather than three, and they are color coded
    red/black which does not quite make sense here. I am inclined to leave
    the wires on the power supply itself bare on the end, rather than
    attaching some specialty connector to those.

    Stereo phone plugs and jacks are nice connectors.


    with the added "benefit" of shorting out when you plug or unplug ;)

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From john larkin@21:1/5 to All on Wed Mar 26 16:37:15 2025
    On Wed, 26 Mar 2025 23:32:47 +0100, Lasse Langwadt <llc@fonz.dk>
    wrote:

    On 3/26/25 20:53, john larkin wrote:
    On Wed, 26 Mar 2025 07:56:22 -0800, Christopher Howard
    <christopher@librehacker.com> wrote:

    Hi, my project box is a large tin cookie box. I need to bring in +15V,
    -15V, and GND lines from my external bipolar power supply. (I was
    thinking I would have a separate bolt for the chassis ground, which
    would go off to a big ground bus bar near my workbench.) For the three
    lines from the power supply, I am wondering what would be the best (but
    economical) choice for a power connector to mount into the side of the
    project box. Something that sounded appealing was the spring speaker
    terminal clips I see on Amazon, but the downside there is they only come >>> in pairs of two or four, rather than three, and they are color coded
    red/black which does not quite make sense here. I am inclined to leave
    the wires on the power supply itself bare on the end, rather than
    attaching some specialty connector to those.

    Stereo phone plugs and jacks are nice connectors.


    with the added "benefit" of shorting out when you plug or unplug ;)

    Sure. A tiny little spark never hurt anybody.

    I once wired a building for RS-232 ruins everywhere, to dumb terminals
    from a DEC timeshare computer. I used phone plugs and jacks. You can
    step on them without damage, and you can mate and unmate them in the
    dark, by feel.

    USB should be so friendly. It ain't.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Christopher Howard@21:1/5 to Liz Tuddenham on Thu Mar 27 06:46:38 2025
    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a
    wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to plug-up and easy to see what you are doing so you don't make silly (and expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/

    --
    Christopher Howard

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From john larkin @21:1/5 to christopher@librehacker.com on Thu Mar 27 08:43:54 2025
    On Thu, 27 Mar 2025 06:46:38 -0800, Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a
    wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to
    plug-up and easy to see what you are doing so you don't make silly (and
    expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/

    This is nice.

    https://www.amazon.com/dp/B07KCRMV4V?psc=1&ref=ppx_pop_dt_b_asin_title

    I like the shorties.

    https://www.amazon.com/dp/B01CJDGWRU?psc=1&ref=ppx_pop_dt_b_asin_title

    They mount nicely on PC boards too.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Liz Tuddenham@21:1/5 to Christopher Howard on Thu Mar 27 15:36:05 2025
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a
    wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to plug-up and easy to see what you are doing so you don't make silly (and expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/

    They would be perfectly satisfactory if you were happy just using plugs.
    If you wanted the option of using bare wire ends, you could try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z P83FB9/145-4921351-4020543?pd_rd_w=eKkNt&content-id=amzn1.sym.fbe92a2b-0 8cd-4430-befc-3cdfe2b8175d&pf_rd_p=fbe92a2b-08cd-4430-befc-3cdfe2b8175d& pf_rd_r=6J30NJ67GND75XSNMQPD&pd_rd_wg=5Jykd&pd_rd_r=14548a61-6fce-4519-9 d2f-2bff5fa8d0d7&pd_rd_i=B07ZP83FB9&psc=1


    For a more up-market version, I have found these to be very reliable
    over decades of abuse:

    https://uk.farnell.com/deltron-components/552-0100/insulated-terminal-30 a-solder/dp/2112490

    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Martin Rid@21:1/5 to Christopher Howard on Thu Mar 27 12:21:38 2025
    Christopher Howard <christopher@librehacker.com> Wrote in message:r
    Hi, my project box is a large tin cookie box. I need to bring in +15V,-15V, and GND lines from my external bipolar power supply. (I wasthinking I would have a separate bolt for the chassis ground, whichwould go off to a big ground bus bar near my
    workbench.) For the threelines from the power supply, I am wondering what would be the best (buteconomical) choice for a power connector to mount into the side of theproject box. Something that sounded appealing was the spring speakerterminal clips I see
    on Amazon, but the downside there is they only comein pairs of two or four, rather than three, and they are color codedred/black which does not quite make sense here. I am inclined to leavethe wires on the power supply itself bare on the end, rather
    thanattaching some specialty connector to those.-- Christopher Howard

    If its rather low current, coaxial power plug and Jack, or even
    a 1/4" stereo Jack. I prefer the binding posts.

    Cheers
    --


    ----Android NewsGroup Reader---- https://piaohong.s3-us-west-2.amazonaws.com/usenet/index.html

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Don Y@21:1/5 to Liz Tuddenham on Thu Mar 27 12:53:59 2025
    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a
    wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to
    plug-up and easy to see what you are doing so you don't make silly (and
    expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/

    They would be perfectly satisfactory if you were happy just using plugs.
    If you wanted the option of using bare wire ends, you could try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want
    to be sure you can get your fingers around them to tighten/loosen them comfortably. And, if they support banana plugs, consider spacing them
    to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4>

    (Of course, the OP needs *3* connections...)

    For a more up-market version, I have found these to be very reliable
    over decades of abuse:

    https://uk.farnell.com/deltron-components/552-0100/insulated-terminal-30 a-solder/dp/2112490


    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From john larkin@21:1/5 to blockedofcourse@foo.invalid on Thu Mar 27 14:32:05 2025
    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a
    wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to >>>> plug-up and easy to see what you are doing so you don't make silly (and >>>> expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/

    They would be perfectly satisfactory if you were happy just using plugs.
    If you wanted the option of using bare wire ends, you could try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z
    P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want >to be sure you can get your fingers around them to tighten/loosen them >comfortably. And, if they support banana plugs, consider spacing them
    to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4>


    It's one of the physical constants of this universe that banana jacks
    are always 0.75" apart.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Liz Tuddenham@21:1/5 to john larkin on Fri Mar 28 09:44:27 2025
    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a >>>> wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to >>>> plug-up and easy to see what you are doing so you don't make silly (and >>>> expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/ >>
    They would be perfectly satisfactory if you were happy just using plugs. >> If you wanted the option of using bare wire ends, you could try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z >> P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want >to be sure you can get your fingers around them to tighten/loosen them >comfortably. And, if they support banana plugs, consider spacing them
    to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4>


    It's one of the physical constants of this universe that banana jacks
    are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From john larkin @21:1/5 to Liz Tuddenham on Fri Mar 28 02:50:01 2025
    On Fri, 28 Mar 2025 09:44:27 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a
    wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to >> >>>> plug-up and easy to see what you are doing so you don't make silly (and >> >>>> expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/ >> >>
    They would be perfectly satisfactory if you were happy just using plugs. >> >> If you wanted the option of using bare wire ends, you could try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z >> >> P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want
    to be sure you can get your fingers around them to tighten/loosen them
    comfortably. And, if they support banana plugs, consider spacing them
    to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4> >>

    It's one of the physical constants of this universe that banana jacks
    are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    Surely you mean one meter.

    But which war?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Liz Tuddenham@21:1/5 to All on Fri Mar 28 10:05:00 2025
    john larkin <jlArbor.com> wrote:

    On Fri, 28 Mar 2025 09:44:27 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in
    a wide range of colours, rated to 500v and 10 amps. Easy to fit,
    easy to plug-up and easy to see what you are doing so you don't
    make silly (and expensive) mistakes.


    We are just talking about something simple like this, right?:


    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ5
    3Z/

    They would be perfectly satisfactory if you were happy just using
    plugs. If you wanted the option of using bare wire ends, you could
    try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/
    B07Z P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first,
    you want to be sure you can get your fingers around them to
    tighten/loosen them comfortably. And, if they support banana plugs,
    consider spacing them to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7X
    UKG4>


    It's one of the physical constants of this universe that banana jacks
    are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    Surely you mean one meter.

    No; meters were very expensive in those days, most people didn't own
    one. :-)


    But which war?

    1939 - 1945.


    --
    ~ Liz Tuddenham ~
    (Remove the ".invalid"s and add ".co.uk" to reply)
    www.poppyrecords.co.uk

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jeroen Belleman@21:1/5 to john larkin on Fri Mar 28 11:11:28 2025
    On 3/28/25 10:50, john larkin wrote:
    On Fri, 28 Mar 2025 09:44:27 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a >>>>>>> wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to >>>>>>> plug-up and easy to see what you are doing so you don't make silly (and >>>>>>> expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/ >>>>>
    They would be perfectly satisfactory if you were happy just using plugs. >>>>> If you wanted the option of using bare wire ends, you could try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z >>>>> P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want
    to be sure you can get your fingers around them to tighten/loosen them >>>> comfortably. And, if they support banana plugs, consider spacing them >>>> to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4>


    It's one of the physical constants of this universe that banana jacks
    are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    Surely you mean one meter.

    But which war?


    Snark.

    Jeroen Belleman

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Phil Hobbs@21:1/5 to All on Fri Mar 28 11:13:21 2025
    john larkin <jlArbor.com> wrote:
    On Fri, 28 Mar 2025 09:44:27 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a >>>>>>> wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to >>>>>>> plug-up and easy to see what you are doing so you don't make silly (and >>>>>>> expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/ >>>>>
    They would be perfectly satisfactory if you were happy just using plugs. >>>>> If you wanted the option of using bare wire ends, you could try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z >>>>> P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want
    to be sure you can get your fingers around them to tighten/loosen them >>>> comfortably. And, if they support banana plugs, consider spacing them >>>> to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4>


    It's one of the physical constants of this universe that banana jacks
    are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    Surely you mean one meter.

    But which war?



    Well, they are banana jacks, so they have to be usable by monkeys. (*)

    Cheers

    Phil Hobbs

    (*) Ancient IBM joke: “Our machines are so easy to service that a monkey could do it!” “Is this a one, two, or three-banana job?”

    (The “🍌🍌🍌job” became proverbial.)

    --
    Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From john larkin@21:1/5 to Liz Tuddenham on Fri Mar 28 09:33:50 2025
    On Fri, 28 Mar 2025 10:05:00 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jlArbor.com> wrote:

    On Fri, 28 Mar 2025 09:44:27 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in >> >> >>>> a wide range of colours, rated to 500v and 10 amps. Easy to fit,
    easy to plug-up and easy to see what you are doing so you don't
    make silly (and expensive) mistakes.


    We are just talking about something simple like this, right?:


    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ5 >> >> >>>3Z/

    They would be perfectly satisfactory if you were happy just using
    plugs. If you wanted the option of using bare wire ends, you could
    try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/ >> >> >> B07Z P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first,
    you want to be sure you can get your fingers around them to
    tighten/loosen them comfortably. And, if they support banana plugs,
    consider spacing them to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7X >> >> >UKG4>


    It's one of the physical constants of this universe that banana jacks
    are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    Surely you mean one meter.

    No; meters were very expensive in those days, most people didn't own
    one. :-)


    But which war?

    1939 - 1945.

    Past my time, although my dad fought (or actually typed) in the
    Pacific in that war.

    I was in the US navy for a week once, and was drafted for the Viet Nam
    war, but never actually served.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From john larkin@21:1/5 to pcdhSpamMeSenseless@electrooptical. on Fri Mar 28 09:35:55 2025
    On Fri, 28 Mar 2025 11:13:21 -0000 (UTC), Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

    john larkin <jlArbor.com> wrote:
    On Fri, 28 Mar 2025 09:44:27 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a >>>>>>>> wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to
    plug-up and easy to see what you are doing so you don't make silly (and
    expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/ >>>>>>
    They would be perfectly satisfactory if you were happy just using plugs. >>>>>> If you wanted the option of using bare wire ends, you could try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z >>>>>> P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want
    to be sure you can get your fingers around them to tighten/loosen them >>>>> comfortably. And, if they support banana plugs, consider spacing them >>>>> to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4>


    It's one of the physical constants of this universe that banana jacks
    are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    Surely you mean one meter.

    But which war?



    Well, they are banana jacks, so they have to be usable by monkeys. (*)

    Cheers

    Phil Hobbs

    (*) Ancient IBM joke: Our machines are so easy to service that a monkey >could do it! Is this a one, two, or three-banana job?

    (The ???job became proverbial.)

    The sign around IBM was


    THINK

    or thwim

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jeroen Belleman@21:1/5 to john larkin on Fri Mar 28 19:33:29 2025
    On 3/28/25 17:35, john larkin wrote:
    On Fri, 28 Mar 2025 11:13:21 -0000 (UTC), Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

    john larkin <jlArbor.com> wrote:
    On Fri, 28 Mar 2025 09:44:27 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a >>>>>>>>> wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to
    plug-up and easy to see what you are doing so you don't make silly (and
    expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/

    They would be perfectly satisfactory if you were happy just using plugs.
    If you wanted the option of using bare wire ends, you could try: >>>>>>>
    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z
    P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want
    to be sure you can get your fingers around them to tighten/loosen them >>>>>> comfortably. And, if they support banana plugs, consider spacing them >>>>>> to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4>


    It's one of the physical constants of this universe that banana jacks >>>>> are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    Surely you mean one meter.

    But which war?



    Well, they are banana jacks, so they have to be usable by monkeys. (*)

    Cheers

    Phil Hobbs

    (*) Ancient IBM joke: “Our machines are so easy to service that a monkey >> could do it!” “Is this a one, two, or three-banana job?”

    (The “???job” became proverbial.)

    The sign around IBM was


    THINK

    or thwim


    I think I'll thwim. I thruggle and emerthe.

    Jeroen Belleman

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From ehsjr@21:1/5 to Phil Hobbs on Fri Mar 28 14:40:05 2025
    On 3/28/2025 7:13 AM, Phil Hobbs wrote:
    john larkin <jlArbor.com> wrote:
    On Fri, 28 Mar 2025 09:44:27 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a >>>>>>>> wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to
    plug-up and easy to see what you are doing so you don't make silly (and
    expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/ >>>>>>
    They would be perfectly satisfactory if you were happy just using plugs. >>>>>> If you wanted the option of using bare wire ends, you could try:

    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z >>>>>> P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want
    to be sure you can get your fingers around them to tighten/loosen them >>>>> comfortably. And, if they support banana plugs, consider spacing them >>>>> to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4>


    It's one of the physical constants of this universe that banana jacks
    are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    Surely you mean one meter.

    But which war?



    Well, they are banana jacks, so they have to be usable by monkeys. (*)

    Cheers

    Phil Hobbs

    In the days when Reliability, Availability and Serviceability
    were IBM mandated design goals, someone suggested the slogan
    "Up your RAS".

    Ed


    (*) Ancient IBM joke: “Our machines are so easy to service that a monkey could do it!” “Is this a one, two, or three-banana job?”

    (The “🍌🍌🍌job” became proverbial.)


    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From john larkin @21:1/5 to ehsjr on Fri Mar 28 13:37:48 2025
    On Fri, 28 Mar 2025 14:40:05 -0400, ehsjr <ehsjr@verizon.net> wrote:

    On 3/28/2025 7:13 AM, Phil Hobbs wrote:
    john larkin <jlArbor.com> wrote:
    On Fri, 28 Mar 2025 09:44:27 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a >>>>>>>>> wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to
    plug-up and easy to see what you are doing so you don't make silly (and
    expensive) mistakes.


    We are just talking about something simple like this, right?:

    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/

    They would be perfectly satisfactory if you were happy just using plugs.
    If you wanted the option of using bare wire ends, you could try: >>>>>>>
    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z
    P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want
    to be sure you can get your fingers around them to tighten/loosen them >>>>>> comfortably. And, if they support banana plugs, consider spacing them >>>>>> to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4>


    It's one of the physical constants of this universe that banana jacks >>>>> are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    Surely you mean one meter.

    But which war?



    Well, they are banana jacks, so they have to be usable by monkeys. (*)

    Cheers

    Phil Hobbs

    In the days when Reliability, Availability and Serviceability
    were IBM mandated design goals, someone suggested the slogan
    "Up your RAS".

    Ed


    (*) Ancient IBM joke: Our machines are so easy to service that a monkey
    could do it! Is this a one, two, or three-banana job?

    (The ???job became proverbial.)


    I have a book IBM's Early Computers by Bashe et al.

    They started with card tabulators and took forever to accept binary.
    Their early computers were BCD monsters.

    I once, in my youth, designed an ADC and interfaced it to a 1401, at
    the Tulane Primate Research Center. It was literally a monkey project.

    https://tnprc.tulane.edu/

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From john larkin@21:1/5 to jeroen@nospam.please on Fri Mar 28 15:16:40 2025
    On Fri, 28 Mar 2025 19:33:29 +0100, Jeroen Belleman
    <jeroen@nospam.please> wrote:

    On 3/28/25 17:35, john larkin wrote:
    On Fri, 28 Mar 2025 11:13:21 -0000 (UTC), Phil Hobbs
    <pcdhSpamMeSenseless@electrooptical.net> wrote:

    john larkin <jlArbor.com> wrote:
    On Fri, 28 Mar 2025 09:44:27 +0000, liz@poppyrecords.invalid.invalid
    (Liz Tuddenham) wrote:

    john larkin <jl@glen--canyon.com> wrote:

    On Thu, 27 Mar 2025 12:53:59 -0700, Don Y
    <blockedofcourse@foo.invalid> wrote:

    On 3/27/2025 8:36 AM, Liz Tuddenham wrote:
    Christopher Howard <christopher@librehacker.com> wrote:

    liz@poppyrecords.invalid.invalid (Liz Tuddenham) writes:


    Screw pillars with 4mm banana sockets in the centre. Available in a >>>>>>>>>> wide range of colours, rated to 500v and 10 amps. Easy to fit, easy to
    plug-up and easy to see what you are doing so you don't make silly (and
    expensive) mistakes.


    We are just talking about something simple like this, right?: >>>>>>>>>
    https://www.amazon.com/40Pcs-Durable-Panel-Mount-Adapter/dp/B0DPWQQ53Z/

    They would be perfectly satisfactory if you were happy just using plugs.
    If you wanted the option of using bare wire ends, you could try: >>>>>>>>
    https://www.amazon.com/FULARR-Premium-Binding-Terminal-Connector/dp/B07Z
    P83FB9/145-4921351-4020543

    If you choose to use a binding post, consider their spacing; first, you want
    to be sure you can get your fingers around them to tighten/loosen them >>>>>>> comfortably. And, if they support banana plugs, consider spacing them >>>>>>> to support "dual" plug assemblies:

    <https://www.amazon.com/CESS-2-Way-Speaker-Banana-Connectors/dp/B01E7XUKG4>


    It's one of the physical constants of this universe that banana jacks >>>>>> are always 0.75" apart.

    ...except in pre-war Netherlands, where they were 1-inch apart.

    Surely you mean one meter.

    But which war?



    Well, they are banana jacks, so they have to be usable by monkeys. (*)

    Cheers

    Phil Hobbs

    (*) Ancient IBM joke: Our machines are so easy to service that a monkey >>> could do it! Is this a one, two, or three-banana job?

    (The ???job became proverbial.)

    The sign around IBM was


    THINK

    or thwim


    I think I'll thwim. I thruggle and emerthe.

    Jeroen Belleman

    Yeth.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)