Paul wrote:
Michael Black wrote:
There were apparently two models, with the "B" model including a
Q-Multiplier for peaking or notching the incoming signal.

The HQ-150 wont need the one with the Q-multiplier since that receiver has
one built-in. Paul, you will find that to be a very sensitive tube radio.
I also find that Q-multiplier to be an amazng aid to copying weak ssb
signals.
--
Brian Denley
http://home.comcast.net/~b.denley/index.html