Re: Frying Pan Guitar - Need R value for Pot

On Sat, 21 Jun 2008 16:07:54 -0700 (PDT), mpm <mpmillard@xxxxxxx>
wrote:

On Jun 21, 3:22?pm, Mycelium <myceliumgr...@xxxxxxxxxxxxxxxxxxxx>
wrote:

?What? ?No ohmmeter? ?You would still get a proper reading since the
scratchyness is related to wiper contact, so the full span reading should
still be viable. ?If it were not, the circuit would not work at all.


Actually, only two leads are connected (wiper and one end), so knowing
the full-open isn't all that helpful, and even if the other end were
open it would still work.

I am amused by all the comments & suggestions that on the surface,
would seem to suggest I don't know how to use a meter, or how to
measure an unknown pot value, or even that 65 year old (+/-)
mechanical parts exhibit noise. For the record, I was up for my
father's funeral and did not bother to pack a voltmeter. (I know, the
true sign of a nerd if ever there was one. Well, that and pocket
protectors. But I digress...)

While there, my brother asked me to look as his lapsteel guitar. We
took the back off, it looked like a standard pot, unmarked, and that
was the end of it. Mistakenly, I thought that since this was supposed
to be a very famous guitar model, it would be a snap to locate the
replacement value online. So far, I have heard recommendations for
everything from 10K to 250K, both linear and audio tapers. (In short,
nobody seems to know.)

Add to this, the US Patent Office does not seem to have the schematic
scanned. (#2089171).
Bummer. I can always do in the hard way... (measure voltages off
the pickup, and select value from there - though it would be nice to
have the parts handy next time I'm home and not have to wait on their
subsequent arrival.) But thanks for the help.

-mpm

My best guess is 50k or 100k log taper. And it is exactly that, a
guess; but typical for then normal "Hi-z" audio equipment.

.