tunnel diodes. The circuit is a push-pull LC oscillator;
frequency-locked to a quartz-crystal. The oscillator output feeds a 51
Ohm resistor while I'm receiving. When the key is depressed the signal
is diode-switched into the antenna. On the first night of operation
AA1MY 589 569 Bethel, ME
VE3DJX 569 439 Smiths Falls, ON
W1PID 589 449 Sanbornton, NH
W2SH 559 339 Millington,
W4AG 599 449
Hillsborough, NC 1038km
KB1KGA 579 329 Mt. Vernon, NH
W4OP 599 449
Glenville, NC 1329km
I made this recording
signal from W1TXT's web
receiver; located 245km from my QTH.
Everybody knows Laika
space dog, but when I read that Bobik ran away
several days before her scheduled launch I decided to name my
transmitter after her. Smart girl...Bobik!
(BTW, a hastily located replacement was named "ZIB
for "Substitute for Missing Bobik" (Zamena
Here's the arrangement used for the above QSOs. The tunnel diodes are
soldered to little "Manhattan" carriers.
The GaAs, type-3I201L tunnel
diodes arrived from
Mother Russia still sealed in their original factory cellophane.
CW was a bit shakey- I was too excited to send well.
Great QSO. I can hardly believe we completed. I had only been listening
for less than 2 minutes before calling you!" Dale, W4OP
"Just worked Mike with a 5/6/9 sig to my 5/8/9 -nice and clean
sounding....Go get 'em!" Seab, AA1MY
"You're coming in nicely at
559/569, and the European QRM has gone." Charles, W2SH
"Bobik is S9 at 4:12 pm local."
"...Mike, I must to little
correct you. The dog's name is Bobik (not Bolik)."
RV3GM (Tnx Oleg...my goof!)