[sdiy] Amphenol edge card connector sides touch?

[Valery Klapatsiuk]

I checked several Amphenol 225-22821-*101* connectors I have – none of the
contacts on them are shorting...

Val

вт, 22 мар. 2022 г. в 16:02, mark verbos via Synth-diy <
synth-diy at synth-diy.org>:

> Definitely not. The power is shut down by the shorting.
> I have had some success putting my wide tweezers into the slot and pushing
> back and forth.
>
> Mark
>
>
>
>
> > On 19. Mar 2022, at 19:39, Brian Willoughby <brianw at audiobanshee.com>
> wrote:
> >
> > This matches computer edge card connector circuits I've seen from a
> certain era, but now you have me wondering:
> >
> > Was the Buchla 200 series designed for this shorting of opposed
> terminals? I've never owned one...
> >
> > Brian
> >
> >
> > On Mar 19, 2022, at 09:35, Oren Leavitt wrote:
> >> Yes. The terminal pairs normally short on these type connectors when
> cards are removed. At least all that I've seen. Power supply lines are
> usually connected with same voltage on each terminal pair or one side not
> connected.
> >>
> >> Best bet may be to put a dummy card in unused connectors.
> >>
> >> - Oren
> >>
> >> On 3/19/22 8:02 AM, mark verbos wrote:
> >>> Hi there,
> >>>
> >>> I have a Buchla 208 I built from parts from Buchla’s garage sale. I
> used the proper (expensive as hell) Amphenol 225-22821-110 edge card
> connector for the card slot on the front panel. The pins from the two sides
> are touching each other when no card is installed, causing the module to
> short power out. Is this normal for these connectors? Is there a way to
> stretch it out? Anyone have experience with this?
> >>>
> >>>
> >>> Mark
> >
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