07-04-2020, 05:32 AM
<Yes, I am trying to reach the 260 >
I think there maybe a misunderstanding of what the goal is. It's not to make the oscillator operate @ 260KC. It's to make the oscillator operate from 810kc (tuning cap closed) to 1760kc (open). This explains it well: https://www.youtube.com/watch?v=hz_mMLhUinw They are going to talk about a 455kc IF, in your case it's 260kc so the math is a little different. The oscillator operates 260kc above the incoming signal.
The pentagrid converter is a multi element tube that equals your 24A mixer and 27 osc tubes all in one.
I think there maybe a misunderstanding of what the goal is. It's not to make the oscillator operate @ 260KC. It's to make the oscillator operate from 810kc (tuning cap closed) to 1760kc (open). This explains it well: https://www.youtube.com/watch?v=hz_mMLhUinw They are going to talk about a 455kc IF, in your case it's 260kc so the math is a little different. The oscillator operates 260kc above the incoming signal.
The pentagrid converter is a multi element tube that equals your 24A mixer and 27 osc tubes all in one.
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
