Help needed: AR1500A Stereo Receiver

[Mike McGue]

I built this receiver in 1975.  After changing the FM Stereo indicator light
recently the FM reception gradually fades out after about thirty minutes of
play.  If I turn the unit off and let it cool down it will then work again
for about thirty minute before reception fades again. I thought the problem
might be a dirty FM Squelch POT and sprayed it with DeOxit 5... no help.
Anyone have this problem before??? Suggestions???

Also the AM section has been dead for years.  I think someone told me to
replace Q51 and Q52 on the RF circuit board.  The Heath part number is 40673.
 Anyone know where I can find two of these or what a suitable replacement
might be?

Thanks,
Mike McGue
N9HHG

-----------------------------------------------------------
This list is a public service of the City of Tempe, Arizona
-----------------------------------------------------------

Subscription control - http://www.tempe.gov/lists/control.asp?list=HEATH
To post - HEATH at LISTSERV.TEMPE.GOV
Archives - http://interactive.tempe.gov/archives/HEATH.html