Sri Bill,
I am having a little trouble understanding your problem.
I run an HT-37, the balance controls on it work similar to the SB-10 and
the heathkit Apache, and the Central Electronics 10A/B and 20A.
Might you explain your sequence for clarification? I might be able to help.
Jim
WB2FCN
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <amradio@mailman.qth.net>
Sent: Tuesday, November 27, 2007 12:59 PM
Subject: [AMRadio] Halli HT37 Phasing Mod problem
Hello,
I have been trying to get this like new HT37 on the air for awhile.
The audio phasing modulator has been near impossible to properly ballance
espeially using the manual instructions.
So far have replaced a leaky low pf brown drop silver mica
that corrected some of the problem but still am not able to get a properly
phased output from the modulator.
The audio seems ok up up to the rf stage where it won't align. The carrier
osc is on freq ok but the carrier phasing adjustments do not work out.
Where would be a good location to apply a ballanced audio signal to
bypass most of the original circuit?.
Has anyone come up with an alignment procedure using modern test gear?
Thanks,
Bill,
KB3DKS/1
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