[Hallicrafters] need help with SX-43 / need transformer

[Gary]

Hi Ed:
    If you have a signal generator, volt meter and a diode, you can test the 
transformer to see if its ok.
Regards,
Gary...WZ1M
----- Original Message ----- 
From: "Edward B Richards" <zuu6k at juno.com>
To: <hallicrafters at mailman.qth.net>
Cc: <n6iwy at sbcglobal.net>
Sent: Monday, November 02, 2009 12:45 PM
Subject: [Hallicrafters] need help with SX-43 / need transformer


>I am having trouble diagnosing a problem with a SX-43. The radio aligns
> OK except the secondary of the detector transformer which will not cross
> zero. It stays on the negative side when you tune it. I have tried
> everything I can think of, including different 6AL5 and the third IF tube
> 6SH6, replaced all the paper caps in the radio, measured all of the
> resistors in the circuit. Checked all the windings for continuity. Pulled
> the transformer and replaced the 22 pfd cap across the secondary. The
> primary peaks OK. I did notice the grid voltage on the 3rd IF tube is
> about 2 volts when the book says 0 volts. I tried 2 other tubes with the
> same results. Can anyone offer any suggestions? I doubt if it is the
> problem but I am out of ideas, so I am Iooking for a 10.7 mc ratio
> detector transformer. Would prefer one from a Hallicrafters SX-42 or
> SX-43, but will consider any. My bad one is part number 50C208. Thank
> you.
>
> Ed   K6UUZ
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