Home  Resources  References  Tubes  Forums  Links  Support 
Hoffman Squeal
12/3/2011 2:13:44 PMDale
I have a Hoffman model A-200 that works/plays fine, with one exception: The output is good over all the frequency range until I tune down to approximately 590KC -- it then starts to squeal and motorboat. When I turn the tuner up past 600KC the squeal stops and is fine throughout the broadcast range until I again go below ~590KC. I cannot see any problem with the tuning capacitor and have spray cleaned it, but the problem persists. Any suggestions? THANKS!
12/3/2011 2:41:45 PMWarren
That sounds like your radio is out of alignment. Does the pointer agree with the station numbers? Tracking off? Follow the RF and IF alignment instructions.
12/3/2011 3:10:58 PMDale
Warren -- thanks for the follow-up. Yes, the pointer does track with the station numbers; however, I'll check / redo the alignment as you suggest.

:That sounds like your radio is out of alignment. Does the pointer agree with the station numbers? Tracking off? Follow the RF and IF alignment instructions.
:



© 1989-2025, Nostalgia Air