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40-180 tube changes
Radioroslyn
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#14

06-07-2015, 10:11 AM
After taking a second look I think I would unground that resistor. Circuit wise it doesn't make a lot of sense cause it will pull the plate voltage on the osc section of the mixer way down. Tube manual sez the triode section can take up to 250vdc which less than the chassis is providing. Is your 4.7K resistor in spec?

Terry
(This post was last modified: 06-07-2015, 10:11 AM by Radioroslyn.)
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Messages In This Thread
40-180 tube changes - by Patrick - 05-30-2015, 05:53 PM
RE: 40-180 tube changes - by Radioroslyn - 05-30-2015, 07:48 PM
RE: 40-180 tube changes - by Patrick - 05-30-2015, 08:29 PM
RE: 40-180 tube changes - by Patrick - 05-31-2015, 07:43 AM
RE: 40-180 tube changes - by mikethedruid - 05-30-2015, 07:50 PM
RE: 40-180 tube changes - by Patrick - 05-30-2015, 08:31 PM
RE: 40-180 tube changes - by Radioroslyn - 05-31-2015, 07:32 AM
RE: 40-180 tube changes - by Patrick - 05-31-2015, 07:51 AM
RE: 40-180 tube changes - by Radioroslyn - 05-31-2015, 08:46 AM
RE: 40-180 tube changes - by Raleigh - 05-31-2015, 04:13 PM
RE: 40-180 tube changes - by Patrick - 06-06-2015, 06:05 PM
RE: 40-180 tube changes - by Radioroslyn - 06-07-2015, 08:47 AM
RE: 40-180 tube changes - by Patrick - 06-07-2015, 09:39 AM
RE: 40-180 tube changes - by Radioroslyn - 06-07-2015, 10:11 AM
RE: 40-180 tube changes - by Patrick - 06-07-2015, 10:40 AM
RE: 40-180 tube changes - by Patrick - 06-07-2015, 01:32 PM
RE: 40-180 tube changes - by codefox1 - 06-07-2015, 11:03 AM
RE: 40-180 tube changes - by Patrick - 06-07-2015, 11:48 AM



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