11-24-2017, 10:56 PM
>Looking at the sch you could use a ext ant
Not so much. The circuit needs to have the loop in circuit to form the tuned circuit connected to the input of the mixer. I don't think there is anything particularly special about the loop except the size and the inductance. If you happen to have a spare loop from another set that fits give it a go. If your spare was use with 365 pf tuning cap then it should fine as is. You can check it's resonant's by how well it receives at the high end. If the ant trimmer doesn't have a peak remove a turn from from the loop.
Or
http://www.sparkbench.com/loopante2.html
GL
Terry
Not so much. The circuit needs to have the loop in circuit to form the tuned circuit connected to the input of the mixer. I don't think there is anything particularly special about the loop except the size and the inductance. If you happen to have a spare loop from another set that fits give it a go. If your spare was use with 365 pf tuning cap then it should fine as is. You can check it's resonant's by how well it receives at the high end. If the ant trimmer doesn't have a peak remove a turn from from the loop.
Or
http://www.sparkbench.com/loopante2.html
GL
Terry
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 "[-]")
