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Stethescope?

10/20/1999 11:55 PM
Rob B.	Stethescope? I have an early japanese tube amp "orpheum" that makes more noises than anyone would think could be possible. It is a real power house pushing two 6aq5s to their limit I have done all the routine things, change cathode resistors, replace a leaking coupling cap, tightened up the tube sockets etc. I have heard of "radio men" in the early days using a stethescope to listen to parts in the circuit of radios to identify arcing resistors etc. Has anyone had any luck with this technique? Is so, what sort of stethescope should I look for? Thanks, Rob

10/20/1999 11:55 PM

Rob B.

Stethescope?

I have an early japanese tube amp "orpheum" that makes more
noises than anyone would think could be possible. It is a
real power house pushing two 6aq5s to their limit ;-)

I have done all the routine things, change cathode resistors, replace a leaking coupling cap, tightened up the tube sockets etc.

I have heard of "radio men" in the early days using
a stethescope to listen to parts in the circuit of
radios to identify arcing resistors etc. Has anyone
had any luck with this technique? Is so, what sort of
stethescope should I look for?
Thanks,
Rob

Replies:

jb Ever seen the car machanic with his... -- 10/21/1999 1:19 AM
Graywater Rob,Well, well, ano... -- 10/21/1999 12:54 PM
ADM I have an amp that was left in a st... -- 10/21/1999 5:17 PM