Vintage Synth Repair

Hi,

Hi,

I just stumbled upon this list looking for information on this old 
wurlitzer organ, nearest I can tell it's a 1973 model and contains 
the orbit synthesizer section, someone was throwing it out and the 
3rd tier labeled "synthesizer" and it's little pot controllers 
(attack rate, sustain, modulation,etc.) as well as the built in 
leslie intrigued me enough to take it home.  Seems to work ok, except 
for the orbit sythesizer section.  I know very little about 
electronics but am trying to learn.  Only a few keys on the 
synthesizer will sound when you hit them , and all the sounds are 
totally bizzare, like white noise sometimes or just strange random-
unplesant sounds, really screechy and loud.  Are the oscillators 
screwed up, out of tune?  Hopefully this is something simple. 

Have some parts from a thomas "catalina" model organ which would send 
in trade for advice, particularly the pedal/amp/vibrato assembly 
which has the leslie out jack.  Other stuff possible too (sorry the 
leslie and bandbox are already gone).  You pay postage.

Thanks,
Ed