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40-180 tube changes
05-31-2015, 03:13 PM
I recently finished a 40-190 with the same 7J7 to 6J8 change. The schematic shows only the 7J7, but in mine, the wiring and components to the 6J8 were the same as the shown on the schematic, taking into account the connection to the 6J8 grid cap wire instead of a grid pin on the base.
John Honeycutt
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Messages In This Thread
40-180 tube changes - by Patrick - 05-30-2015, 04:53 PM
RE: 40-180 tube changes - by Radioroslyn - 05-30-2015, 06:48 PM
RE: 40-180 tube changes - by Patrick - 05-30-2015, 07:29 PM
RE: 40-180 tube changes - by Patrick - 05-31-2015, 06:43 AM
RE: 40-180 tube changes - by mikethedruid - 05-30-2015, 06:50 PM
RE: 40-180 tube changes - by Patrick - 05-30-2015, 07:31 PM
RE: 40-180 tube changes - by Radioroslyn - 05-31-2015, 06:32 AM
RE: 40-180 tube changes - by Patrick - 05-31-2015, 06:51 AM
RE: 40-180 tube changes - by Radioroslyn - 05-31-2015, 07:46 AM
RE: 40-180 tube changes - by Raleigh - 05-31-2015, 03:13 PM
RE: 40-180 tube changes - by Patrick - 06-06-2015, 05:05 PM
RE: 40-180 tube changes - by Radioroslyn - 06-07-2015, 07:47 AM
RE: 40-180 tube changes - by Patrick - 06-07-2015, 08:39 AM
RE: 40-180 tube changes - by Radioroslyn - 06-07-2015, 09:11 AM
RE: 40-180 tube changes - by Patrick - 06-07-2015, 09:40 AM
RE: 40-180 tube changes - by Patrick - 06-07-2015, 12:32 PM
RE: 40-180 tube changes - by codefox1 - 06-07-2015, 10:03 AM
RE: 40-180 tube changes - by Patrick - 06-07-2015, 10:48 AM
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