[GreenKeys] Wanted: keytops for 28

[Harold Hallikainen]

I worked with Mike yesterday to get his model 28 on the air. Success! We
had a solid copy local QSO on 20 meters last night.

We ran into some interesting issues. The HAL-6000 seems to be a bit
sensitive to RF. With high RF, the AFSK modulator would not key. Just
continuous mark. We improved system grounding and added ferrites
everywhere. It now seems to work reliably with about 50 watts out of the
transmitter, but just mark at 100 watts.

Also, Mike has a 28KSR. Is it possible (or practical) to add tape
equipment to this, making it ASR? I use at 15 with 14 TD and typing
reperf. He could do that too, if he wants more heavy metal. But a
perforator and punch on the 28 would be nice.

Harold
https://w6iwi.org


On Thu, October 7, 2021 12:27 pm, Mike McAuley wrote:
> Ok thanks Wayne! Yes, I just found the keytop/keylever assy part numbers
> pages on the navy site.  I had no idea there were SO many different
> combinations of LC/UP keytops.  I will be inquiring with Paul about.these
> now that I have p/n.Mike
> -------- Original message --------From: WAYNE <teletypeparts at comcast.net>
> Date: 10/7/21  12:14 PM  (GMT-07:00) To: Mike McAuley <mmcauley at cox.net>,
> GREENKEYS BULLETIN BOARD <greenkeys at mailman.qth.net> Subject: Re:
> [GreenKeys] Wanted: keytops for 28
>
>    Mike,


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