[Hammarlund] Heathkit Q multiplier

[Grant Youngman]

> Hi, I just bought a Heathkit model GF-1 Q multiplier from 
> Has anyone here every hooked one of these up to an HQ-180? 

BIG waste of time.  There is simply no need for it.  The 180 has a notch and
excellent all-mode selectivity as is.

The Q-mults were designed for much lesser radios with a 455 Kc IF, that did
not have much in the way of QRM fighting tools.  Especially radios without
crystal filters, but also could be used with a crystal filter to give a few
more options.  For example, the Hallicrafters HQ-150 had both a crystal
filter and Q-mult with both notch and peak functions.

Grant/NQ5T