[Drake] Looks like a D104 Project Cont.

[Larry Taft]

One of the many schemes for wiring the D104 includes a shorting switch 
across the mic to eliminate hum
and pickup when not talking.  Does the short go away when you "choke the 
chicken"?  I rewired mine to have the mic live all the time for VOX 
use.  Also the switch can still be used for PTT.
73, Larry  K2LT
drakerepair.com

OTAKEBI at aol.com wrote:
>  
> Well, I got a hold of something that looks like a diagram and seems the  
> wires are as they should be.
> I found that I am getting a short from shield to audio.
> I think that this is the problem.
> Should not be any continuity between those two.
> It shorts even without the PTT bar pushed in.
> I have checked the mic cord and mic plug.
> They are fine.
> Took mic cord off and took reading from shield on bus to white audio  get a 
> short.
> In the morning I am going to check further upstream at the switch  itself.
> That is the only other place to look.
> I removed the amp board and still have short.
> Removed the head and still have short.
> Removed the battery still have short.
> Has to be in the PTT switch.
> Any ideas I might have missed?
> Dan/N4VET
>
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