01-24-2019, 01:28 AM
Hi Mike, yup, as far as those parts and connections you mentioned, been there and done that multiple times. This is a fairly uncomplicated circuit made with reliable disc ceramic caps, all of which were tested or subbed anyway. Even tried scoping the B+ supply and adding .01 mfd caps on the supply line temporarily just to be sure it is bypassed well at RF frequencies! I even disconnected D16 the RF overload diode and tested it, thinking if it was shorted or leaky it could load down the osc and kill it but still nothing! I am beyond stumped.
Ron
Ron
Bendix 0626. RCA 8BX5. RCA T64
Philco 41-250. Philco49-500
GE 201. Philco 39-25
Motorola 61X13. Philco 46-42 Crosley 52TQ
Philco 37-116. Philco 70
AK 35 Philco 46-350
Philco 620B. Zenith Transoceanic B-600
Philco 60B. Majestic 50
Philco 52-944. AK 84