[Hallicrafters] HA-1 Cures
Rick Smedberg
smedberg at t-one.net
Wed Jan 28 21:29:23 EST 2004
Hi all.
I have had a long problem with my HA-1 TO keyer's speed changing.
I replaced C1,C2 .02 mf "tiny chief capacitors, and they wereleaky.
Also resistors R2,R7 5.6 meg ohm with 2% precesion resistors.
The speed is now stable and easer to adjust. The keyer also developed
another problem of sending unwanted extra dits by itself??? I found the
problem was in the dial light. The outside tube was not making good
contact to the solder lug. I soldered the back of the tube to the solder
lug and removed the gremlins. Most of those i work on cw say the ha-1
has the best sound and is the easiest to copy of any keyer.
73 wa8ylz
--
Rick Smedberg WA8YLZ
P.O. Box 148 Custer, MI 49405
smedberg at t-one.net
http://www.t-one.net/~smedberg
Grid Square EN63vw
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