In article . com,
"=?iso-8859-1?B?S9hIQg==?=" writes:

About 75-100V

Holy moley! Are you serious?

Heck yes. That's not a lot compared to some rigs I've used.

Type 7 (and Type 6 before it) cathode key the Class A driver stage.

Now I know what they mean when they say
"N2EY sure has a hot key."

bwaahaahaa

My idea anticipated maybe 12V keying voltage.

All it takes is a bigger transistor.

Many manufactured transceivers and trasnmitters using grid block keying put
more juice on the key than my rigs do.

73 de Jim, N2EY