[sdiy] electrical problems with panel pots/electrical tape

[Dan Snazelle]

great ideas everybody!!

i will have to see if i can find these SHAKE washers for pots..NO, my pots have never come with them (but i think they usually come with my toggles..wrong size of course but same idea)

i wonder if my hardware store would carry nylon washers for those alpha 16mm pots...anybody know what size of washer you are normally using with those pots?

but yeah, nylon washers...what a great idea.

and i also like the idea of putting the laminate on the back of the panel and cutting holes in it. that would work well too.

i am sure this is a problem other people have.

I JUST NOW made a module that i thought was a definite broken module, work perfectly as soon as i applied electrical tape to each and every pot.
(foniks attenuverter mixer)
after the tape, it worked on the first try.

now if i can just make my panels LOOK better (which i dont think nylon washers will help ;)


thanks as usual


--------------------------------------------
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> Date: Thu, 25 Sep 2008 17:21:45 +0100
> From: seb at burnit.co.uk
> To: subjectivity at hotmail.com
> CC: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] electrical problems with panel pots/electrical tape
>
> Do the pots come with a shake proof washer? This normally goes between
> the pot and the panel. If there's also a plain washer this goes under
> the nut on the front of the panel. The shake proof washer should give
> you the spacing you need, or just use any washer that fits to the same
> effect.
>
> Seb
>
>
> Dan Snazelle wrote:
>> Ok
>> let me start by saying i always use the alpha 16mm pcb mount pots that futurlec sells. i dont however pcb mount them. i cut off the little pcb mount pins, and i solder my wires into the three holes right above the post.
>>
>> however, these three holes always end up pretty flush with the unpainted aluminum panel and if ANY little bit of wire or solder happens to touch the panel the nightmares start.
>>
>> the last three or 4 modules i have finished, i have had all kinds of weird problems UNTIL i covered the three front holes (after i soldered) with ELECTRICAL TAPE.
>>
>>
>> so my question is this.
>>
>> since some pots have positive voltage, or negative, or often ground, i can understand how them ALL touching the panel is bad. HOWEVER when i look at your projects on here, i rarely if ever hear of anyone using electrical tape.
>>
>>
>> so...what are the solutions? DOES A PAINTED PANEL HAVE LESS CONDUCTIVITY? is that part of my problem is that i am using unpainted aluminum?
>>
>> when i stick the wires through the holes and solder them, i always cut the wire off as much as possible. but if i loosen the pots from the panel, the bad problems go away. and that is when i know that something must be touching and i reach for the electrical tape.
>>
>> of around 22 modules now, almost ALL of the aluminum panels needed tape. the plexiglass panels it was obviously never a problem.
>>
>>
>> i dont want to switch to pots with solder terminals as futurlec pots are SO CHEAP and SO SMALL.
>>
>> any advice?
>>
>> anyone else have the same problems?
>>
>>
>>
>> thanks
>>
>>
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>
>