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Re: [Amps] 160M PI network Toroidal Coil

To: Manfred Mornhinweg <manfred@ludens.cl>, amps@contesting.com
Subject: Re: [Amps] 160M PI network Toroidal Coil
From: peter chadwick <g8on@fsmail.net>
Reply-to: g8on@fsmail.net
Date: Wed, 09 Oct 2013 10:38:13 +0200
List-post: <amps@contesting.com">mailto:amps@contesting.com>
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

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