Has anyone tried grid block keying of SB200?
No manual and wanted to ask a couple of questions before
pulling it out of the cabinet.
I have a Heath HW-16. This is a low power transmitter and receiver
built into one cabinet. It's full QSK and works like this.
Receiver has a 6EW6 pentode as RF amp for it's first stage.
Grid one of this tube is connected to tank side of the 75W
output tubes DC blocking capacitor via a 10pf cap.
QSK keying is accomplished via grid block of all transmitter stages
with -90V.
I'm thinking that by connecting the 6EW6 RF amp to the SB200 DC blocking
cap
on the tank side that I can key the SB200 along with the other transmitter
stages. The RF and IF amp stages of the receiver are also rebiased with
keying and I can adjust this to reduce gain further to compensate for the
extra
power.
What say?
-bob
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