[ARC5] Select-O-Ject

[Richard Knoppow]

      I got into a discussion on some mailing list about the 
Selectoject. I said it worked at audio frequencies and others 
insisted it worked at RF (in the IF actually). I have no memory 
of which list this was on and can't find it.
In any case I found the original article by Villard and Weaver in 
the November, 1949 edition of QST, p.11. It does work at audio. 
The subtitle is: The Selectoject, a variable frequency selective 
audio amplifier, oscillator, and rejection filter. If I didn't 
post here perhaps it will still be of some interest.
    I think there was confusion with a Q-multiplier. While in 
principle a Q-multiplier can work at any frequency most were 
built to work in the IF of a receiver.

-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL