06-30-2017, 09:20 PM
From my vantage point the 41's (6K6's) are going to be abt 16K end to end. 42's are abt 10K. This is from the 1940 RCA tube manual. Plate current is going to be abt 50ma for the 41's and almost 80ma for the 42's. Methinks the opt is going to be a little wimpy for the job.
The FC presents a couple of issues too. It needs to be rated enough current to handle all the circuits in the set, abt 100ma. So even though the resistance is good it has to be able to pass that amount of current w/o overheating. This means that the replacement spkr will need to come from a set that has 7 or 8 tubes w/pp output.
The FC presents a couple of issues too. It needs to be rated enough current to handle all the circuits in the set, abt 100ma. So even though the resistance is good it has to be able to pass that amount of current w/o overheating. This means that the replacement spkr will need to come from a set that has 7 or 8 tubes w/pp output.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
