[Milsurplus] BC-9 Loop Test: Scratching My Head.

[Bruce MacMillan]

For those that might want to understand the principle of the set, Al 
Klase has the manual available at:
http://www.skywaves.ar88.net/mil/SCR-77/radio%20pamphlet%206%20scr-77-a.pdf

It appears to be an autodyne radio, popular in the 1930s.

Bruce   M0SOE

On 11/02/2017 03:30, David Stinson wrote:
>
> ----- Original Message ----- From: "Kenneth G. Gordon" 
> <kgordon2006 at frontier.com>
>
>> One thing I am curious about is "F", the "filter". Is this the 
>> original filter or is it a recent
>> repair.
> The "F" filter is an original part of the circuit.
> Had to measure the parts to determine values.
> It keeps RF off the DC parts of the grid
> and plate circuits.


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