cctalk Digest, Vol 90, Issue 7 - Re: DEC H500 Digital Computer Lab

Tom Hunter ccth6600 at
Sun Mar 13 10:37:55 CDT 2022

Hi Gerhard,

I used the following banana plugs:

Please note that only about 30% of the plugs I received were a good fit.
The rest I had to modify.

I had to remove the barrel shaped contact spring and compress it carefully
to open it up to make good contact with the sockets.
I also soldered the barrel shaped contact spring onto the plug body. It is
a lot of work to make the patch cables with plugs which don't quite fit,
but with the modification the result is now neat and usable.

I couldn't find anything else with a better fit. The original 0.1" taper
pins are "unobtainium".


On Sun, Mar 13, 2022 at 7:18 PM DI Gerhard Kreuzer via cctalk <
cctalk at> wrote:

> Hi,
>     I also have an H500 waiting for restoration.
>     Maybe anyone can give better winfos about the plugs/connectors of the
> patch cables.
>     I didn't have any, I have to make new.
>     With best regards
>     Gerhard
>     Zitat von cctalk-request at
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