Richard did an article in QSt many years ago on QSK for the SB-200.
But, as I am sure you know, Ameritron is well represented at the ARRL.
Somehow that articke is no longer in the archive.
Well 40 meter CW is where I started over 30 years ago ..
when the Novice band was 7.15 to 7.20 !! Can't wait till the broadcasters
will move -- will be a first class early evening DX band (sans static!)

I did see a couple of Internet web pages with the conversion -- but those
web pages are now gone - I'll keep an eye open. I think Richard did do a
conversion on an earlier SB-200 ... you may also want to look at the
Ameritron/MFJ QSK-5 PIN diode internal board approach (for ideas how or how
not to do it).
http://www.ameritron.com/man/pdf/QSK-5PC.pdf

w9gb

Richard did an article in QST many years ago on QSK for the SB-200.
But, as I am sure you know, Ameritron is now well represented at the
ARRL. Somehow that articke is no longer in the archive. I guess
articles on modifications to old amplifiers does not sell new
amplifiers.

Anyway, I think I have it figured out. Both of the connections to the
cathode bias swicth will be on the HV power supply board. I will just
place my circuit in proximity to that board. I will place the relays
where the old RF relay was. Should you come across anything, I would
like to see it, though.

In the early 60s I was rock bound to a DX-60 on a 40 meter dipole.
The receiver was an SX-101. I remember having a cigar box of rocks,
and tuning up and down the band after every call. It was a big thing
when I got my first, not so stable, VFO. But, looking back, those
were great days. I don't get the kinds of QSOs today I did back then.

Thanks again

Win, w0lz