10-03-2017, 07:53 PM
I have the opposite issue my 41-300 sound pretty bassy if anything it's missing some highs. I grounded the feedback loop, I couldn't get it to work well w/the Thordarson multimach transformer. I've come to the conclusion that the tone control pot is intermittent it's kinda finicky. I did clean it when I serviced the chassis. It's a bit of a pita to replace because it's gear driven and has a short shaft. Would probably have to find a used one or develop some welding skills.
In terms of opt and low frequency response my best guess is that has to do with inductance of the primary and the core size. The more inductance and the larger the iron core is the better or more efficient it should be at lower frequencies. Would happy to entertain other thoughts on the matter as I'm no rocket scientist[Image: http://philcoradio.com/phorum/images/smi...on_lol.gif] just a hobbyist.
In terms of opt and low frequency response my best guess is that has to do with inductance of the primary and the core size. The more inductance and the larger the iron core is the better or more efficient it should be at lower frequencies. Would happy to entertain other thoughts on the matter as I'm no rocket scientist[Image: http://philcoradio.com/phorum/images/smi...on_lol.gif] just a hobbyist.
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 it!
Terry
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
