11-02-2010, 09:28 PM
Funny you should mention that. Years ago (like 40) when I rewound my first tickler winding I only put 13t of #30 on it. At that time nobody had written down the specs for it. It did oscillate but only over about half of the dial. If memory serves me I think it would conk out as the frequency got higher. I would think with smaller gauge wire you would want to add a few turns to increase the coupling. The tickler or feedback winding isn't all that critical but should be close the original spec. What I do now is I take a guess at the gauge of the wire, find some in the junk box and fill the empty space where the old winding was. If it works I jot down the gauge and turns. If it doesn't just work I keep working on it till it does and jot down the gauge and the turns.
Terry
w/am 740 in the background
waiting for the shows to start
on Pete's old 37-675
Terry
w/am 740 in the background
waiting for the shows to start
on Pete's old 37-675
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 "[-]")
