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Fairbanks Morse Model 8a Problem
#7

I've been going thru the schematic and if I'm reading it properly I've found 4 resistors and three capacitors have been removed at some point.  History of the radio is unknown. I purchased it over ten years ago and had a supposedly radio tech try to get it operational. He replaced the caps and a few resistors then gave up. Since then I 've been dabbling in radio repair and trying to learn as you all know from my horrible posts in the past.(38-116 fix, Philco 70,71) 

I counted all the resistors in the chassis then compared to the schematic and come up 4 short...so far I cannot find 3of the 4.... #59 the 2.2.meg, #22 - 1000ohm and #23 - 15,000ohm.   I cannot see where they may have once been in the circuit is the other problem. The caps are #8,9,38 (I think). 

If those resistors were back in the circuit would that fix my problem or does their placement not affect the low bias, high b+?

Bob 


Messages In This Thread
Fairbanks Morse Model 8a Problem - by bm071 - 01-15-2016, 09:23 AM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-18-2016, 09:24 AM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-18-2016, 09:40 AM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-18-2016, 07:37 PM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-20-2016, 09:19 AM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-20-2016, 05:55 PM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-20-2016, 05:59 PM



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