Model 650 Tone Control Question
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Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
> Ron Ramirez has written a very good article on correcting for a failed interstage transformer primary.
I can't take credit for that, the information came from John Grady - jgrady on ARF.
The article in question:
https://philcoradio.com/library/index.ph...nsformers/
--
Ron Ramirez
Ferdinand IN
Messages In This Thread
RE: Model 650 Tone Control Question - by Ron Ramirez - 07-13-2023, 08:08 PM
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I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM |
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It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires.
Why'n't you...morzh — 09:49 PM |
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I'm not sure why that wire wasn't covered in the video. I'm pretty sure the 6A8 won't work until that pin is grounded. Y...RodB — 09:47 PM |
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You'll have to forgive me, I am not sure what you mean. Can you explain what you are really saying. If anyone does not...georgetownjohn — 08:05 PM |
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Those are details better left to the ones who know. Maybe you disconnected the wrong end of the wire.RodB — 06:22 PM |
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Maybe this is starting to make some sense in my hard head. Is this why the wire in question was not in the great Ron Ra...georgetownjohn — 04:34 PM |
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I was correct with the 6A8 pin connection's, 7 and 8 are connected to ground as well as the tube shield (the broken line...RodB — 02:41 PM |
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What does the dotted line representing that surrounds the tube in the schematic?georgetownjohn — 02:17 PM |
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Hello John,
I have been there either label got lost or was not labeled !
Sincerely Richardradiorich — 02:15 PM |
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Sorry, it is a Philco 37-640. Does that help?--Johngeorgetownjohn — 02:14 PM |
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