Model 37-650 Intermittent Fading
Check
mica condenser No. 8, Part No. 30-1076, Service Bulletin
No. 254. Some condensers in this model have been found where a 25- or 30-megohm
short developed intermittently, causing a positive voltage of 4 to 5 volts
in the AVC circuit.
From the Philco Serviceman - June, 1937.
