[600MRG] Homebrew Tube Transmitter

[sbjohnston at aol.com]

 DDS VFO's can be a good way to drive rigs that were meant for crystals.  Here's some info on ones I've built:


http://www.wd8das.net/DDSVFO/ddsvfo.html


Note my booster amp based on the AD811 chip - amps like this are needed to get the necessary output voltage to drive tube rigs.



For a simpler, fixed-frequency crystal replacement, consider QRP Labs "Prog-Rock" kit:


https://www.qrp-labs.com/progrock.html


Hard to beat for $18 !



You might also be able to use the Epson SGR-8002DC-PTB-ND programmable oscillator chip programmed by Digikey as described by W9RAN in Electric Radio magazine this month.  The IC only costs $4.





 

Steve WD8DAS

sbjohnston at aol.com
http://www.wd8das.net/
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