Perhaps a microphonic tube in the audio stages? Try swapping them out. Replacments should be easy and cheap to come by.
__________________
“He who dies with the most toys is nonetheless dead”
Philips AF-887 TT, Marantz CC 4300 CD changer, Teac R-400X cassette
Marantz 2270
JBL L-26
AV Adjunct: Toshiba 27" TV and DVD/VHS combo
Other toys: http://cgi.audioasylum.com/systems/1606.html
|