[ARC5] BC-221s,LMs, cal books, and uses for the BC-221/LM

[Kenneth G. Gordon]

As far as calibration books are concerned, if you go here:

http://www.w7ekb.com/glowbugs/Military/BC221pages.html

You will find one or more programs that will do that for you.

Originally, the calibration manuals were made by a large analog "computer" 
of sorts that determined the calibration points and printed the manual.

I have seen photos of the thing in action.

I have two BC-221-AKs. I use them to help in calibrating receivers: I set one 
at the top calibration point of the dial and the other at the bottom one for 
each band.

I think I paid no more than $10.00 for each one, and they were NOS.

The -AK, -AL, and -AM were the only BC-221s which included a switch 
position for tone-modulation, while ALL of the LMs included that.

Ken W7EKB