12-18-2018, 03:01 PM
> "Volume" on this receiver is really an RF control at the antenna.
Correct. And this set doesn't have an avc circuit. Which can make it more susceptible to overload.
>Is this just typical for a 1934 design?
Well it's more like 1929 technology although Philco was the designer of avc (1st used in the model 95) they decided to not incorporate it in this set.
>I haven't checked the bias voltages on the output tube
Good idea. Should see abt -16vdc on the 47's control grid.
If you are not using a ground connection on the chassis do so this will help make the volume control more effective.
Correct. And this set doesn't have an avc circuit. Which can make it more susceptible to overload.
>Is this just typical for a 1934 design?
Well it's more like 1929 technology although Philco was the designer of avc (1st used in the model 95) they decided to not incorporate it in this set.
>I haven't checked the bias voltages on the output tube
Good idea. Should see abt -16vdc on the 47's control grid.
If you are not using a ground connection on the chassis do so this will help make the volume control more effective.
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
