37-620 voltages

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37-620 voltages

loneddie
Junior Member

Posts: 6
Threads: 2
Joined: May 2020
City: Deland State, Province, Country: Florida

05-18-2020, 08:15 PM

Been working on this old radio for almost 20 years off and on notwithstanding heart attacks, cancer, and various other maladies. Finally got the radio completely back together again. Ran voltage checks. Need some feedback to make sure I am on the right track. The RF 6K7 plate is 213 vdc, sg is 114 vdc. The 6A8 plate is 213 vdc, sg is 114, osc plate is 237 vdc. IF 6K7 plate is 230 vdc, sg is 114 vdc. The 6Q7 plate is 192 vdc. The 6F6 plate is 225 vdc, sg is 230 vdc. I am thinking about changing resistor 29 (70k) to higher value to drop some of the higher voltages. Also, might change resistor 17 (20k) to 24K. Will this help restore voltages to correct values? Are the present voltages too far out of bounds to functionally operate? Icon_crazy

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37-620 voltages - by loneddie - 05-18-2020, 08:15 PM

RE: 37-620 voltages - by RodB - 05-19-2020, 08:20 AM

RE: 37-620 voltages - by morzh - 05-19-2020, 08:37 AM

RE: 37-620 voltages - by RodB - 05-19-2020, 09:14 AM

RE: 37-620 voltages - by morzh - 05-19-2020, 09:35 AM

RE: 37-620 voltages - by RodB - 05-19-2020, 09:58 AM

RE: 37-620 voltages - by loneddie - 05-19-2020, 01:45 PM

RE: 37-620 voltages - by morzh - 05-19-2020, 01:51 PM

RE: 37-620 voltages - by loneddie - 05-21-2020, 03:39 PM

RE: 37-620 voltages - by Radioroslyn - 05-21-2020, 04:54 PM

RE: 37-620 voltages - by morzh - 05-21-2020, 05:18 PM

RE: 37-620 voltages - by Radioroslyn - 05-21-2020, 05:30 PM

RE: 37-620 voltages - by morzh - 05-21-2020, 05:42 PM

RE: 37-620 voltages - by Radioroslyn - 05-21-2020, 07:19 PM

RE: 37-620 voltages - by morzh - 05-21-2020, 07:34 PM

RE: 37-620 voltages - by Radioroslyn - 05-21-2020, 08:08 PM

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