Author Topic: sparks & little noises  (Read 384 times)

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Offline rizoma

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sparks & little noises
« on: December 04, 2017, 03:48:49 am »
I'm using two bench single rail power supplies connected as bipolar and if I plug the power connector one pin at a time to my circuit I ear a little noise when I connect the positive and ground and a little spark while connecting  the negative  pin. Other than that the circuit works fine, this is just a one shot thing.
Should I worry about that?
« Last Edit: December 04, 2017, 03:52:26 am by rizoma »

Offline alsetalokin4017

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Re: sparks & little noises
« Reply #1 on: December 04, 2017, 04:01:46 am »
Are we allowed to know the make/model of the power supplies, and any details (like for instance a schematic) of the circuit you are powering with them?
The easiest person to fool is yourself. -- Richard Feynman

Offline rizoma

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Re: sparks & little noises
« Reply #2 on: December 05, 2017, 02:04:33 am »
Hi! I'm attaching the board, sorry got no schematics, and about the psusss:

I'm using two really old italian bench power supplies so I don't think that can help much since there's no documentation about them anyway they are:
- alpha elettronica al-266s
- g.b.c. nt0410-00" :palm:
Other than that they seems to work fine, never had any problem with these...
« Last Edit: December 05, 2017, 02:06:37 am by rizoma »

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