[Hallicrafters] HT-32B 7360 Modulator Balance

[David C. Hallam]

Does anyone have a good procedure for the problem of carrier balance of the
7360 modulator in the HT-32B.  I have some old correspondence from Robert
Orwin, who had been the Technical Director for Hallicrafters, suggesting the
following:

"Use an old speaker or other permanent magnet to alter the magnet pattern of
the cover.  To use the magnet, move it a circle above the SB generator with
the cover closed while observing balance.  When a null is obtained, lift the
magnet straight up and away.  The null will hold."

Using this method, Robert said that he could get <-50 db of the carrier.  I
can get this kind of suppression with the cover up.  As soon as I put the
cover down, the suppression is not as good.  No amount of waving a magnet
over the SB generator seems to do any good.

Do others have this problem and is there a solution?

David C. Hallam
KC2JD