[GreenKeys] Two Teletype model 20RO printers available

Harold Hallikainen harold at w6iwi.org
Thu May 9 10:25:17 EDT 2019


I received the below email from the Denver Telecom History Group. THG
currently has enough Teletypes (and I'm working on getting them running).
So, the below listed equipment is available as described below (trade for
model 15 or pay cost). Please contact Randall directly.

Harold


> I have two Teletype-brand units which I would consider
> | donating if
> you have an interest. I have a rare Model 20-RO and its associated
> Model
> 20 non-typing perforator unit. I believe both were used in concert
> with the Teletypesetter appliance that attached to Linotype machines.
> Based on newspaper articles touting this technology, I’d guess they
> date to about 1952.
>
> I’ve been interested in having a Model 15 receive-only machine for
> some time now, prompted by my long history of using news wire services
> as a radio reporter and as a former UPI stringer. In March, I bought
> these two units from an eBay seller here in Wisconsin, thinking the
> printer was a Model 15. The seller had been an editor at the Mining
> Journal, the daily paper in Marquette, Michigan and was there when it
> was decommissioned in 1985. At the time, the AP told him it was the
> last Teletype-brand unit operating for them in the entire state, and
> they let him keep it. He also said he had not done any work on it (he
> had at one time planned to gut it to make it into a planter).
>
> This seemed to be perfect: a machine that was functioning when retired
> and that had not had anyone try to restore it. It appeared to be
> complete (except for the paper advance crank and the input cable). My
> hope was to get it functioning and use one of the circuits that some
> hobbyists have developed to have it print an RSS feed.
>
> However, once I got it home and gave it a close inspection, I noticed
> it has six, not five bell cranks (and 42 typing hammers). Turns out
> it's the rare Model 20/receive only unit. (The motor does indeed work).
>
> The perforator unit is also a Teletype-brand unit, and in an e-mail
> exchange with Mr. Rtty (the parts guy in California) he says it's the
> associated Model 20 non-typing perforator. The hinged lid has a
> painted-over AP/Teletype plate on it. It appears to have had some
> modification: the large capacitor is plugged into has a circuit board
> with a solid state relay and some solid state resistors, which look as
> though they post-date the unit itself. The transformer under the
> capacitor has the number 176435. Could the AP have updated this? It
> was also clearly functioning when retired as it still has some of the
> paper "chads" inside the case. Everything I’ve found out about these
> seems to indicate these two units worked together with a
> Teletypesetter unit. Indeed, the advent of this technology sometimes
> led to strikes among newspaper Linotype operators.
>
> Were this a Model 15, I just might have been able to get it going, but
> getting a six-bit configuration working is certainly beyond my skills.
>
> Would you be interested in these as a donation? (Or, I’d trade these
> for a Model 15-RO if you have several). Either way, I can likely make
> a road trip later this summer to either Seattle or Denver to deliver
> them. Please let me know.
>
> Randall Davidson
> Fond du Lac, WI
> randalldavidson at charter.net
> 920-923-5769  |
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