[sdiy] OT: Rhodes pickup rewinding

[Roy J. Tellason]

On Monday 06 March 2006 01:48 pm, Tim Parkhurst wrote:
> On 3/6/06, rkmoore at memphis.edu <rkmoore at memphis.edu> wrote:
> > Hi everyone,
> >
> > I have a Rhodes piano that I love dearly, but over time the pickups
> > slowly die.  I have purchased replacement coils out of cannibalized
> > pianos, and this has worked, but I would rather learn to rewind the
> > pickups (I want to keep this piano alive for decades to come).  Does
> > anyone know the wire gauge or number of turns?  42 seems like a familiar
> > number, but I haven't found it well documented.  I  know the impedance
> > should be between 170 and 190 ohms.
> >
> > THANKS,
> >
> > Richard
>
> Sorry I can't offer any help, but I do have a question: the pickups
> eventually die? I've seen 30 and 40 year old guitars with their
> original pickups. Are the pickups in the Rhodes especially fragile?
> Are they subject to a lot of mechanical stress? Or do they perhaps get
> a whole lot of current run through them? Doesn't seem likely, but I
> could easily be wrong on this one. Can anyone shed some light on this?
>
> Tim (in the dark again) Servo
> --
> "Imagination is more important than knowledge." - Albert Einstein

I've never heard this before either,  and I've encountered some rather old 
units in my servicing days...

I suppose that one way to do it would be to measure the size of the wire with 
a micrometer,  which should translate to what gauge it is with some handy 
chart,  and then count the turns on a "dead" coil that's being unwound.  Very 
tedious stuff,  to say the least.

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin