[Amps] 160M PI network Toroidal Coil

[peter chadwick]

Manfred

>I'm not even aware of those Radio Regulations. I suppose you mean the 
British ones? In my country they aren't valid anyway - and I wish there 
were any at all! <

Actually Manfred, your government has signed up to them! I'm referring to the International Radio Regulations, published by the ITU, and signed up to, by all the participants in a World Radio Conference. Is there not a ban on spark transmitters? That's in the RR.

Interesting point about iron cores and VFOs. As I recall, the old Command transmitters were very stable, and they had iron cores in both the VFO and the PA. But they were magnetically loosely coupled, unlike toroids.

73

Peter G3RZP