<VV> DELCO AM-FM radio revisited

[N2VZD at aol.com]

now i got interested enough to dig out my  Delco factory radio  books.  
corvair am-fm had the DS501 audio xistor  (5 watts instead of  DS503 3 watt on 
AM ) which is external on the back of the radio, and no  fader jack because 
it has a stereo adapter plug.
so:  make sure the speaker does not have one terminal grounded , and  green 
wire hooked to the grounded terminal...it has to be the black wire to  
ground , make sure no body strap or metal grounds the exposed case of the DS501  
audio transistor, make sure the stereo adapter plug is seated ok and the 
cover  screw is on the strap to it.  other than that , hard to diagnose at a  
distance.  anyhow i am glad to have found my old original service stuff for  
delco radio now!  that schematic is on 2 pages , so scan is not easy, but  
doable.
regards, tim colson