02-25-2019, 05:47 PM
Hi Sam
That set isn't tuneable per say, there isn't a tuned circuit to adjust the frequency. It does have a crystal that is used for a time base and that's what it use to determine the output frequency. What you can try is solder a small value cap (like 5-20pf) across Y1 (crystal). A trimmer could be use instead of the fixed cap. What that will do is shift the frequency of the time base a little lower.
GL
That set isn't tuneable per say, there isn't a tuned circuit to adjust the frequency. It does have a crystal that is used for a time base and that's what it use to determine the output frequency. What you can try is solder a small value cap (like 5-20pf) across Y1 (crystal). A trimmer could be use instead of the fixed cap. What that will do is shift the frequency of the time base a little lower.
GL
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
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
