[ARC5] [Milsurplus] Article in Nov. QST

[wa5jci at flash.net]

In days gone by, K7IRK and myself went up to the Dallas sidewalk sale 
and we would see who could buy the most BC-221s for $5 or less. So, I 
kept most of mine but I did use a few for parts. I didn't use my 
head, at the time, and collect one of each model. I have LMs, and the 
221s, including the UHF look alike. Somewhere around here I have a 
manual which explains each model with schematics. I did do some 
experimenting by replacing the oscillator tube with an MPF 102 J-Fet, 
zener and resistor. It worked great and no recalibrating needed. I 
don't remember the details but still have the unit and the paper work 
is stored in one of the boxes.

A great precision instrument.


de Pete WA5JCI







At 04:34 PM 10/15/2011, Kenneth G. Gordon wrote:
>On 15 Oct 2011 at 17:18, Meir WF2U wrote:
>
> > Did it ever occur to anyone to use the darn thing for what it was
> > designed for? Like, heaven forbid, a frequency measuring device, or
> > marker generator?
>
>I use two BC-221-AKs for that: when aligning receivers, for instance,
>I set one at the bottom end and the other at the top end of a band,
>then leave them alone.
>
>I have always loved the BC-221...
>
>Ken W7EKB
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