[Hallicrafters] HT37 SSB problem

[Glen Zook]

What tubes are in the final?  Use of 6146B types can
result in spurious emissions which can definitely
cause the problems that you are seeing.  If you have
one 6146B and the other is a 6146 or 6146A then that
is really asking for trouble.

For the article on the 6146 family of tubes that
appeared in Electric Radio a while back go to either
website that is listed at the end of this message.

Also, there could be problems in the balanced
modulator circuity which could allow the carrier not
to be "nulled".

Glen, K9STH

--- Joseph Trombino Jr <w2kj at bellsouth.net> wrote:

When I am in the USB or LSB mode and I go to MOX, I
get full output.

I cannot null the carrier in the MOX and USB or LSB
position.

When I go to VOX mode and speak into the mike I get
full output....unable  to null carrier in this mode either.

Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco

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