Hallicrafter HA-1 (TO) Manual/Schematic

[Russ-2]

Folks:

Not exactly Elecraft, but I am restoring the HA-1 tube keyer copy that I built from scratch as a kid in 1970.
The tubes have all lost their markings (and maybe their functionality).
Does anyone have a schematic (or manual)?

Thanks, Russ KD4JO
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[David Koch]

Russ,

You may want to post that on the CFO list, a CW group started by Jim,
W9TO (SK), inventor of the TO keyer.  If you are not a member, I am
willing to post it for you.

73, Dave W8OV



On 2017-05-15 10:39, Russ wrote:
> Folks:
>
> Not exactly Elecraft, but I am restoring the HA-1 tube keyer copy that I built from scratch as a kid in 1970.
> The tubes have all lost their markings (and maybe their functionality).
> Does anyone have a schematic (or manual)?
>
> Thanks, Russ KD4JO
>

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[Grant Youngman-2]

http://bama.edebris.com/manuals/hallicra/ha1/ <http://bama.edebris.com/manuals/hallicra/ha1/>

> On May 15, 2017, at 11:39 AM, Russ <[hidden email]> wrote:
>
> Folks:
>
> Not exactly Elecraft, but I am restoring the HA-1 tube keyer copy that I built from scratch as a kid in 1970.
> The tubes have all lost their markings (and maybe their functionality).
> Does anyone have a schematic (or manual)?
>
> Thanks, Russ KD4JO
> ______________________________________________________________
>

Grant NQ5T
K3 #2091, KX3 #8342



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[Mike Furrey]

The 12AT7 sounds familiar in that multivibrator circuit. Was it built from a schematic in an older handbook? I have some from that era in my storage unit. The next time I am there (next week) I can dig one out and look.
73, Mike WA5POK
 

    On Monday, May 15, 2017 10:41 AM, Russ <[hidden email]> wrote:
 

 Folks:

Not exactly Elecraft, but I am restoring the HA-1 tube keyer copy that I built from scratch as a kid in 1970.
The tubes have all lost their markings (and maybe their functionality).
Does anyone have a schematic (or manual)?

Thanks, Russ KD4JO
______________________________________________________________
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