[Elecraft] Hallicrafters HA-1

John Meade W2XS john.meade at freqelec.com
Mon May 15 15:12:54 EDT 2017


I also copied the Hallicrafters HA-1 schematic when I was 15. I loved the
glow of those voltage regulator tubes and the neon bulb on the front panel.
And that mercury-wetted relay was beautiful.

But - it didn't have auto character spacing which came out with the WB4VVF
Accu-Keyer (hint-hint - so it's not OT after all).

73, John W2XS
(K3, K2, K1, KX2, and had 2 KX1s).



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