Wow, I thought I was the only one still using the 8044 chip. Mine is
really old, but never needs anything but a new battery every few years.
The circuit I used has the keyer chip driving a reed relay, so it will
key anything (except a spark transmitter or searchlight, of course).
Some of the circuits using the 8044 just used it to drive a switching
transistor and varied depending on whether the the rig used positive or
negative line keying. Maybe there's just too much voltage drop through
the keying transistor.
73,
Bob WB2VUF
Gary Smith wrote:
Hi folks,
Thanks for the numerous replies!
I've managed to get things working by using a different keyer. I was
using a homebrew keyer I made a long time ago based on the Curtis
8044 chip. It worked with my old TS-820S, a TR-7 ,Triton, Corsair II
& Omni V with no problem
It does trigger the Titan 425's relay but that does not trigger the
Corsair...
Last night I tried using a retired Ham Keyer I gave my Dad back when
I was a Novice in the late 70's so he would stop using his bug which
for me was hard to copy the way he used it (Gave him a Bencher paddle
back then too). The Ham Keyer also uses the 8044 but a different
circuit I guess for the Ham keyer does the job perfectly.
Has to be something in the output of my homebrew keyer that doesn't
integrate with the 425. Works great now though, Worked a few new on
80M last night and it was flawless.
Thank you all for your kind suggestions and
Happy New Year!
Gary
KA1J
Hi,
I use my 604 keyer into the Titan 425E and the key-out to the Corsair
and all works ok.
73
Tim
gm4lmh
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