[GreenKeys] Houston - 28 ASR and 28 ROTR available

Sat Mar 19 14:33:51 EDT 2022

I see a UART and FIFO chips. So electronic speed conversion.

Maybe a missing UART in that other board, unless one is a dual.

On Sat, Mar 19, 2022 at 2:16 PM Ralph Irish <w8roi at wowway.com> wrote:

> Teletype once made an electric gearshift device.  I believe it would fit
> on either a KSR or an ASR,
> or maybe they made two different shifts for the two machines.  I had a few
> friends who had the
> 60/75 WPM shift on their KSRs and after 'multi speed' operation was
> legalized, they would get on
> the air and shift to75 WPM.  Seeing the switch marked 60 and 100 gives me
> the idea of a possible
> electric gearshift.  Either that or the machine had 100 WPM gears and did
> the 'downshifting' via the
> TTL chips on the perfboard.
>
> Just a few wild guesses from here.
>
> Good luck using it.  Would like to see a few more photos of the entire
> machine, inside and out, if
> possible.
>
> Ralph - W8ROI
>
> -   -   -   -   -   -   -   -
>
> *From: *"Paul Heller" <paul0926 at comcast.net>
> *To: *"Kevin H. Phillips" <kh-phillips at 9-5usa.org>
> *Cc: *"greenkeys" <greenkeys at mailman.qth.net>
> *Sent: *Saturday, March 19, 2022 1:33:06 PM
> *Subject: *Re: [GreenKeys] Houston - 28 ASR and 28 ROTR available
>
> Nice Kevin!
> My guess is that the machine is either geared for 60WPM or 100WPM and the
> electronics were a speed converter  / buffer.   It could be that the loop
> runs through those components and you might need to rewire it to route
> again to the proper terminals on the terminal strip. Should not be hard to
> do.
>
> Paul
> W2TTY
>
> ITTY: HTTP://INTERNET-TTY.NET:8000/ITTY
> <HTTP://internet-tty.net:8000/ITTY>
> ITTY 100:  HTTP://INTERNET-TTY.NET:8010/ITTY100
> AUTOSTART: HTTP://INTERNET-TTY.NET:8030/AUTOSTART
> <HTTP://internet-tty.net:8030/AUTOSTART>
> EUROPE: HTTP://INTERNET-TTY.NET:8040/EUROPE
> <HTTP://internet-tty.net:8040/EUROPE>
>
> On Mar 19, 2022, at 5:27 PM, Kevin H. Phillips <kh-phillips at 9-5usa.org>
> wrote:
>
> I was able to make contact with this nice gentleman and picked up these
> two machines yesterday afternoon.  I was able to coax my wife into going
> along to help by promising to attend a plant sale with her earlier in the
> day.  Collecting Teletypes often involves trade-offs, I guess.  The
> gentleman is a mechanical engineer who did not have an interest in the
> machines himself but recognized them as being marvelous works and thought
> they were worth saving from the trash bin.  Naturally, I thanked him
> profusely for saving them.
>
>
> I haven't had time to examine them thoroughly but I am hopeful that the
> 28ASR will be "plug and play" since it is in such good shape internally.
> It does not seem dried out or rusted.  It is also remarkably clean on the
> inside.  The keys have quite a bit of the whitish "fungus" on them.  Its
> background was unknown other than it apparently came from the estate of
> some high-ranking Naval officer.  The cabinet does seem to have a slightly
> more "blue" tint than the usual Western Union green.
>
>
> I took a few closer pictures of the electronic boards that were "under the
> hood" plus the control panel.  I can't tell anything about this but my
> guess is that it was perhaps designed as a built-in electronic TU.  A lot
> of the wires (practically like hairs) have pulled loose so I doubt this can
> be restored to its original function and also since there's no
> documentation on it.  The control panel was very well done.  You can see
> that it seems to have had some sort of speed selector for both 60wpm and
> 100wpm.  The switch marked "CW" is a momentary switch so I would guess it
> was for CW-I.D.  On one board I can see the lettering "7490" which makes me
> wonder if this was frequency-specific.
>
>
> I will post more pictures perhaps later today.  I have not examined the
> ROTR yet.
>
>
> 73
>
>
> Kevin
>
> W5TTY
> On 3/12/2022 2:34 PM, Nick England wrote:
>
> Some photos at
> https://www.navy-radio.com/misc/28-houston/
>
> I know nothing more other than he says
> " If you know of anyone who is looking for one please send this along.
>   I'd even be willing to donate to a good cause."
>
> Contact David Jochim  DJochim at lhrtech.com
>
> Cheers,
> Nick England K4NYW
> www.navy-radio.com
>
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> >>> 2002-to-present greenkeys archive:
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>
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> >>> 2002-to-present greenkeys archive:
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> >>> 1998-to-2001 greenkeys archive:
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-- 
Nick England K4NYW
www.navy-radio.com
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