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54C Baffle
#17

Hi Ron.

The 12A8 and the 12SK7 both have pin 1 connected to chassis ground. The 12SQ7 DID have pin 1 connected to the chassis also. Just like yours. But the sound was garbled. I disconnected pin 1 of the 12SQ7 from chassis ground and instead connected it to B-. Now it works fine. I did use a PM speaker. Actually, the same one you used. I'm in the process of converting another 54C right now. We'll see if it acts the same.


Messages In This Thread
54C Baffle - by Patrick - 10-01-2023, 10:23 AM
RE: 54C Baffle - by Ron Ramirez - 10-01-2023, 10:51 AM
RE: 54C Baffle - by Patrick - 10-01-2023, 11:10 AM
RE: 54C Baffle - by Ron Ramirez - 10-01-2023, 12:37 PM
RE: 54C Baffle - by morzh - 10-01-2023, 01:01 PM
RE: 54C Baffle - by Patrick - 10-01-2023, 01:24 PM
RE: 54C Baffle - by Radioroslyn - 10-01-2023, 04:31 PM
RE: 54C Baffle - by morzh - 10-01-2023, 05:53 PM
RE: 54C Baffle - by Radioroslyn - 10-01-2023, 06:42 PM
RE: 54C Baffle - by Ron Ramirez - 10-01-2023, 06:44 PM
RE: 54C Baffle - by morzh - 10-01-2023, 07:55 PM
RE: 54C Baffle - by Patrick - 10-01-2023, 09:31 PM
RE: 54C Baffle - by Patrick - 10-02-2023, 08:40 AM
RE: 54C Baffle - by morzh - 10-02-2023, 12:00 PM
RE: 54C Baffle - by Ron Ramirez - 10-02-2023, 03:57 PM
RE: 54C Baffle - by morzh - 10-02-2023, 04:27 PM
RE: 54C Baffle - by Patrick - 10-02-2023, 04:38 PM
RE: 54C Baffle - by Patrick - 10-02-2023, 04:41 PM
RE: 54C Baffle - by radiorich - 10-02-2023, 07:29 PM
RE: 54C Baffle - by Ron Ramirez - 10-03-2023, 08:31 AM
RE: 54C Baffle - by Patrick - 10-03-2023, 08:52 AM
RE: 54C Baffle - by Patrick - 10-03-2023, 09:03 AM
RE: 54C Baffle - by MrFixr55 - 10-03-2023, 09:53 AM
RE: 54C Baffle - by Ron Ramirez - 10-03-2023, 10:06 AM
RE: 54C Baffle - by Ron Ramirez - 10-03-2023, 10:19 AM
RE: 54C Baffle - by Patrick - 10-03-2023, 11:49 AM
RE: 54C Baffle - by morzh - 10-03-2023, 03:02 PM
RE: 54C Baffle - by Ron Ramirez - 10-03-2023, 05:38 PM
RE: 54C Baffle - by Patrick - 10-04-2023, 09:11 AM
RE: 54C Baffle - by morzh - 10-04-2023, 09:31 AM
RE: 54C Baffle - by Radioroslyn - 10-04-2023, 10:31 AM
RE: 54C Baffle - by Ron Ramirez - 10-04-2023, 10:32 AM
RE: 54C Baffle - by Ron Ramirez - 10-04-2023, 10:40 AM
RE: 54C Baffle - by morzh - 10-04-2023, 02:19 PM



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