[HAM] Bad generator pickup coil

[Scott Hawthorn]

At 03:08 PM 3/3/2008, Mike Kearney wrote:
>So I got this M2 and it has a missing tone (51) on both manuals and I
>removed the cap and tested it, a .255 measuring at .3, which is close
>enough, and I tested the 51 transformer and it's not shorted out. And so
>I did the alligator clip from the output of the transformer to a drawbar
>and get no tone, and then the input to the transformer to a drawbar and
>get no tone. So I look under the tone generator and the 51 tone wheel
>isn't stuck or beat up or anything,  and the 63 generator on the same
>shaft has a good tone. So now I'm afraid it's the pickup coil or magnet.

Good deductions, but you can put the clip lead all the way down to where 
the jumper wire comes right off the coil, if you can get to it. In other 
words, the other end of the wire that goes to the transformer.

>So what does one do when a pickup coil  goes bad? Especially when it's
>on the front side of the tone generator? It looks to be a big job to
>replace it. Does anyone have a spare? All thoughts appreciated.

Not replaceable, unfortunately. There have been a few reports of successful 
soldering jobs where the coil wire itself has broken, but I wouldn't want 
to try it. But you're in luck. Get one of these! The sound comes from the 
tonewheel one octave above, and is then divided. It sounds perfect (I have 
installed them for customers). You can slave three more cheaper slave units 
to it if you should lose any more tones:
<http://www.trekii.com/#MISC> then scroll down to GNR-1A. Buy it from a 
dealer like Sal Azzarelli or Tonewheel General, because Mike's prices are 
higher. Yup, it costs more than you paid for the organ! Hee hee....