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Philco all transistor Trans-World purchase
Radioroslyn
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#8

08-16-2015, 03:56 PM
The "paper caps" in xsistor sets are electrolytics. That's what they use for coupling and bypassing. Usually low voltage like 15v and fairly low capacitance like 1-20mfd. So you do have to mind the polarity. Most of the time when bad it will cause poor performance and oscillation.

Terry
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RE: Philco all transistor Trans-World purchase - by Radioroslyn - 08-16-2015, 03:56 PM



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Made mistake & did not label connection
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
Made mistake & did not label connection
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
Made mistake & did not label connection
Hello John, I have been there either label got lost or was not labeled ! Sincerely Richardradiorich — 02:15 PM
Made mistake & did not label connection
Sorry, it is a Philco 37-640.  Does that help?--Johngeorgetownjohn — 02:14 PM
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You haven't given us the model number of the set so I looked up the 6A8 pin assignment. Pin 8 is the cathode and pin 7 i...RodB — 01:19 PM
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