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

[David Stinson]

----- 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.