04-10-2015, 08:19 AM
Hi - its used for choke capacity coupling in the LF stage - probably in a 20's battery radio. It goes from the anode through to HT+ , the anode also goes to the grid condenser (cap) of the following LF amplifying valve.
There are example circuits in Camm's encyclopaedia
It works well but you don't get the same amplification as with transformer coupling.
There are example circuits in Camm's encyclopaedia
It works well but you don't get the same amplification as with transformer coupling.







