[sdiy] electrical problems with panel pots/electrical tape

[Matthias.Herrmann at jeppesen.com]

synth-diy-bounces at dropmix.xs4all.nl wrote on 09/26/2008 05:13:36 AM:
> 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.

that's the way i do it. i use two nuts (M7).

BTW i am using the 16mm alphas and i never have experienced any problems 
with soldering the wire to the holes instead to the pins. could someone 
explain whats wrong with this?

dan, i don't cut off the pins to get more pots in a column, i just mount 
them 30^ rotated like this:
/
/
/
/

got the picture? works fine.


cheers,
matthias
___
www.modular.fonik.de

> 
> > 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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