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Fairbanks Morse Model 8a Problem
bm071
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Posts: 53
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Joined: Jun 2011
City: Lexington, N.C. 27292
#12

01-21-2016, 09:19 PM
I followed the schematic line by line and replaced the missing resistors and caps.  Fixed a majority of the issues. Volume is great and the garble is gone.  B+ is down to 270v and the bias is at -75v.  The antenna lead now works very well on the shortwave bands but not broadcast. 

Would someone be kind enough to look at  the scematic and help be figure out how to read the band switch. Resistor#22 is missing along with the connection to band swich (reference 5f).  I'm not sure which lug on the band switch that connection goes to. .
Thanks,
Bob   
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Messages In This Thread
Fairbanks Morse Model 8a Problem - by bm071 - 01-15-2016, 10:23 AM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-18-2016, 10:24 AM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-18-2016, 10:40 AM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-18-2016, 08:37 PM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-20-2016, 10:19 AM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-20-2016, 06:55 PM
RE: Fairbanks Morse Model 8a Problem - by bm071 - 01-20-2016, 06:59 PM
RE: Fairbanks Morse Model 8a Problem/last question - by bm071 - 01-21-2016, 09:19 PM



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  1. The PHILCO Phorum
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  3. Other Radios (Non-Philco)