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Linear Mode
Model 71 oscillator
Steve Davis
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Posts: 1,409
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Joined: Oct 2007
City: Linn Creek, MO
#2

09-06-2020, 10:16 PM
Richard, try lowering the cathode resistor from 15K to 10K or even 7500 ohm. If the oscillator still drops out, the oscillator coil form may have moisture. Remove the coil and bake it @ 200 degrees for about 20 minutes. 

Steve
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Messages In This Thread
Model 71 oscillator - by WB5NEN - 09-06-2020, 02:17 PM
RE: Model 71 oscillator - by Steve Davis - 09-06-2020, 10:16 PM
RE: Model 71 oscillator - by Radioroslyn - 09-07-2020, 08:39 AM
RE: Model 71 oscillator - by WB5NEN - 09-07-2020, 05:16 PM
RE: Model 71 oscillator - by WB5NEN - 09-07-2020, 07:32 PM
RE: Model 71 oscillator - by Radioroslyn - 09-07-2020, 07:53 PM
RE: Model 71 oscillator - by WB5NEN - 09-07-2020, 10:15 PM
RE: Model 71 oscillator - by WB5NEN - 09-08-2020, 01:57 PM
RE: Model 71 oscillator - by Radioroslyn - 09-08-2020, 07:58 PM
RE: Model 71 oscillator - by Steve Davis - 09-08-2020, 11:47 PM
RE: Model 71 oscillator - by WB5NEN - 09-09-2020, 04:19 PM
RE: Model 71 oscillator - by Radioroslyn - 09-09-2020, 06:57 PM
RE: Model 71 oscillator - by RodB - 09-09-2020, 07:00 PM
RE: Model 71 oscillator - by Radioroslyn - 09-09-2020, 08:49 PM
RE: Model 71 oscillator - by WB5NEN - 09-09-2020, 10:18 PM
RE: Model 71 oscillator - by Radioroslyn - 09-10-2020, 08:07 AM
RE: Model 71 oscillator - by WB5NEN - 09-10-2020, 08:50 AM
RE: Model 71 oscillator - by RodB - 09-10-2020, 08:57 AM
RE: Model 71 oscillator - by Radioroslyn - 09-10-2020, 10:34 AM
RE: Model 71 oscillator - by rfeenstra - 09-10-2020, 04:46 PM
RE: Model 71 oscillator - by WB5NEN - 09-10-2020, 10:43 PM
RE: Model 71 oscillator - by rfeenstra - 09-11-2020, 09:38 AM
RE: Model 71 oscillator - by WB5NEN - 09-11-2020, 10:07 AM
RE: Model 71 oscillator - by rfeenstra - 09-11-2020, 12:54 PM
RE: Model 71 oscillator - by rfeenstra - 09-11-2020, 01:05 PM
RE: Model 71 oscillator - by WB5NEN - 09-14-2020, 06:58 PM
RE: Model 71 oscillator - by Radioroslyn - 09-15-2020, 09:46 AM
RE: Model 71 oscillator - by WB5NEN - 09-15-2020, 12:00 PM
RE: Model 71 oscillator - by WB5NEN - 09-18-2020, 07:29 PM



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