[sdiy] electrical problems with panel pots/electrical tape

Roy J. Tellason rtellason at verizon.net
Fri Sep 26 05:13:36 CEST 2008


On Thursday 25 September 2008 15:52, GRAHAM ATKINS wrote:
> Dan and all,
>
> Check this out :-
>
> http://www.wavemakers-synth.com/motm/chiclets.html
>
> Graham

Note the first picture on the page.  There are _two_ nuts shown on that pot.  
The purpose of there being two of them is to be able to space the pot away 
from the panel.

> On Sep 25, 2008, at 16:53, 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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