Yeah there was nothing like cathode keying. Mine used to chirp slightly.
-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Ed Malmgren
Sent: Sunday, December 02, 2007 11:53 AM
To: [log in to unmask]
Subject: D X 100 Mods
I made several mods on my 100. don't remember them all but one was a
spotting button to get on the qrg. another was having the V F O tube run
all the time while transmitting for more stability and keying the next tube
with grid block type keying maybe the 12 B Y 7. another was neutralizing the
finals with a wire bent in one direction or another to avoid self
oscillation. boy these thoughts bring back a lot of memories from the 60s.
73
Ed K7UC