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LF: LF-Matchbox and TX schematics

To: [email protected]
Subject: LF: LF-Matchbox and TX schematics
From: [email protected]
Date: Mon, 12 Mar 2012 09:05:51 +0100
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Hello Paolo
Sorry for the strange title of the first post. The same again:
Here you may find the pictures of the LF/MF Matchbox. As you see, switching is
done by relays:

http://funkperlen.blogspot.com/2012/03/lfmf-matchbox.html

And here are the schematics of my LF TX:

http://funkperlen.blogspot.com/2012/03/136-khz-tx.html

Sorry for the bad drawings. In the meantime I've replaced the VFO by a DDS.

BTW My MF TX for our future 472kHz Band is built on the same base:

http://funkperlen.wordpress.com/2010/12/23/seltene-vogel/

It's a simple design and it works perfect (at least in the dummy load, hi)

73 de Toni, HB9ASB

PS. mni tnx to David, G3YMX who designed the original!



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