Model 650 Tone Control Question

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Model 650 Tone Control Question

Radioroslyn
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Posts: 7,301
Threads: 269
Joined: Dec 2009
City: Roslyn Pa

#44

07-08-2023, 02:45 PM

What you are looking for is a transformer that will match 6K to 1 1/4 ohms. Normally the plate impedance would be higher but these tubes are configured in a triode setup for less distortion vs the more common pentode configuration. Something like a Hammond 125E electrically would come pretty closes but mechanically it kinda big compared to the original.

https://www.hammfg.com/electronics/trans.../125a-125e

GL

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry

(This post was last modified: 07-08-2023, 02:56 PM by Radioroslyn.)

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Model 650 Tone Control Question - by Hamilton - 06-27-2023, 10:45 AM

RE: Model 650 Tone Control Question - by morzh - 06-27-2023, 12:11 PM

RE: Model 650 Tone Control Question - by Ron Ramirez - 06-27-2023, 02:39 PM

RE: Model 650 Tone Control Question - by Hamilton - 06-27-2023, 05:49 PM

RE: Model 650 Tone Control Question - by morzh - 06-27-2023, 07:26 PM

RE: Model 650 Tone Control Question - by Hamilton - 06-29-2023, 08:03 AM

RE: Model 650 Tone Control Question - by Ron Ramirez - 06-29-2023, 08:17 AM

RE: Model 650 Tone Control Question - by RodB - 06-29-2023, 09:09 AM

RE: Model 650 Tone Control Question - by Ron Ramirez - 06-29-2023, 10:20 AM

RE: Model 650 Tone Control Question - by Chas - 06-29-2023, 10:26 AM

RE: Model 650 Tone Control Question - by Ron Ramirez - 06-29-2023, 10:32 AM

RE: Model 650 Tone Control Question - by morzh - 06-29-2023, 10:57 AM

RE: Model 650 Tone Control Question - by Hamilton - 06-29-2023, 11:46 AM

RE: Model 650 Tone Control Question - by RodB - 06-30-2023, 08:31 AM

RE: Model 650 Tone Control Question - by Hamilton - 06-30-2023, 11:45 AM

RE: Model 650 Tone Control Question - by Hamilton - 06-30-2023, 02:07 PM

RE: Model 650 Tone Control Question - by MrFixr55 - 06-30-2023, 05:22 PM

RE: Model 650 Tone Control Question - by Hamilton - 06-30-2023, 07:57 PM

RE: Model 650 Tone Control Question - by Hamilton - 06-30-2023, 08:13 PM

Hamilton - by Hamilton - 07-03-2023, 10:13 AM

RE: Model 650 Tone Control Question - by DaleHCook - 07-03-2023, 10:28 AM

RE: Model 650 Tone Control Question - by Steve Davis - 07-03-2023, 11:50 AM

RE: Model 650 Tone Control Question - by Hamilton - 07-03-2023, 12:10 PM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-03-2023, 11:25 PM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-04-2023, 12:40 AM

462ron - by 462ron - 07-04-2023, 08:56 AM

Hamilton - by Hamilton - 07-04-2023, 09:54 AM

462ron - by 462ron - 07-04-2023, 10:06 AM

RE: Model 650 Tone Control Question - by DaleHCook - 07-04-2023, 10:43 AM

RE: Model 650 Tone Control Question - by Hamilton - 07-04-2023, 03:13 PM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-04-2023, 04:26 PM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-04-2023, 04:38 PM

RE: Model 650 Tone Control Question - by DaleHCook - 07-04-2023, 05:08 PM

RE: Model 650 Tone Control Question - by radiorich - 07-05-2023, 12:18 AM

RE: Model 650 Tone Control Question - by Hamilton - 07-06-2023, 08:11 AM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-06-2023, 11:40 AM

RE: Model 650 Tone Control Question - by Hamilton - 07-07-2023, 07:48 AM

RE: Model 650 Tone Control Question - by Hamilton - 07-07-2023, 02:59 PM

RE: Model 650 Tone Control Question - by RodB - 07-07-2023, 03:11 PM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-07-2023, 09:23 PM

RE: Model 650 Tone Control Question - by Radioroslyn - 07-07-2023, 09:45 PM

RE: Model 650 Tone Control Question - by Hamilton - 07-08-2023, 09:30 AM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-08-2023, 12:07 PM

RE: Model 650 Tone Control Question - by Radioroslyn - 07-08-2023, 02:45 PM

RE: Model 650 Tone Control Question - by Ron Ramirez - 07-08-2023, 03:44 PM

RE: Model 650 Tone Control Question - by morzh - 07-08-2023, 05:32 PM

RE: Model 650 Tone Control Question - by Hamilton - 07-09-2023, 06:15 AM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-09-2023, 07:55 AM

RE: Model 650 Tone Control Question - by DaleHCook - 07-09-2023, 10:16 AM

RE: Model 650 Tone Control Question - by DaleHCook - 07-09-2023, 11:03 AM

RE: Model 650 Tone Control Question - by Ron Ramirez - 07-09-2023, 11:16 AM

RE: Model 650 Tone Control Question - by DaleHCook - 07-09-2023, 11:24 AM

RE: Model 650 Tone Control Question - by Ron Ramirez - 07-09-2023, 11:28 AM

RE: Model 650 Tone Control Question - by DaleHCook - 07-09-2023, 12:12 PM

RE: Model 650 Tone Control Question - by Ron Ramirez - 07-09-2023, 12:32 PM

RE: Model 650 Tone Control Question - by DaleHCook - 07-09-2023, 01:43 PM

RE: Model 650 Tone Control Question - by Radioroslyn - 07-10-2023, 10:39 AM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-10-2023, 04:39 PM

RE: Model 650 Tone Control Question - by DaleHCook - 07-10-2023, 07:03 PM

RE: Model 650 Tone Control Question - by Radioroslyn - 07-10-2023, 07:57 PM

RE: Model 650 Tone Control Question - by DaleHCook - 07-10-2023, 08:41 PM

RE: Model 650 Tone Control Question - by Radioroslyn - 07-11-2023, 09:04 AM

RE: Model 650 Tone Control Question - by DaleHCook - 07-11-2023, 10:35 AM

RE: Model 650 Tone Control Question - by DaleHCook - 07-11-2023, 03:37 PM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-11-2023, 09:10 PM

RE: Model 650 Tone Control Question - by Radioroslyn - 07-12-2023, 07:41 AM

RE: Model 650 Tone Control Question - by Hamilton - 07-12-2023, 07:50 AM

RE: Model 650 Tone Control Question - by Radioroslyn - 07-12-2023, 08:14 AM

RE: Model 650 Tone Control Question - by DaleHCook - 07-12-2023, 09:14 AM

RE: Model 650 Tone Control Question - by Hamilton - 07-12-2023, 12:20 PM

RE: Model 650 Tone Control Question - by Radioroslyn - 07-12-2023, 04:32 PM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-12-2023, 05:58 PM

RE: Model 650 Tone Control Question - by Hamilton - 07-12-2023, 06:46 PM

RE: Model 650 Tone Control Question - by Hamilton - 07-12-2023, 06:49 PM

RE: Model 650 Tone Control Question - by DaleHCook - 07-13-2023, 09:56 AM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-13-2023, 04:13 PM

RE: Model 650 Tone Control Question - by Arran - 07-13-2023, 04:39 PM

RE: Model 650 Tone Control Question - by DaleHCook - 07-13-2023, 05:04 PM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-13-2023, 05:13 PM

RE: Model 650 Tone Control Question - by Radioroslyn - 07-13-2023, 06:07 PM

RE: Model 650 Tone Control Question - by Ron Ramirez - 07-13-2023, 08:08 PM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-14-2023, 06:05 AM

RE: Model 650 Tone Control Question - by MrFixr55 - 07-14-2023, 06:25 AM

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