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Nigel's 40M Transmitter




 
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Author Topic: Nigel's 40M Transmitter  (Read 6920 times)
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N4LTA
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« Reply #25 on: March 05, 2021, 12:15:42 PM »

Brent

I have some brand new boards for Nigels circuit. I have some Rev 1 and some Rev 2s. The rev 2 has the high voltage feedback on the board and Rev 1has so be wired to the high voltage suppy. Not much difference. I build a prototype before the REV 1 was sent off for boards and it worked, but I have no guarantees on the boards. I'll be glad to send you one.

I'll be building one soon here as well as a 1 fet per side transmitter board to get 100 watts or so carrier. Those will be the first projects in my new shop. The transmitter had all of the required voltage regulation required including a variable LM 350 regulator for the gate drivers and a 5 V supply for the divider/phase splitter. This is the same as Rod  used  in his control circuit.

I'll send you a board for this transmitter also if you wish.


Pat
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