[GreenKeys] Teletype DRPE tuned reed mechanism - Two cents more

[Ralph Irish]

A local ham friend has an unusual RT set. The 'perf' is a high speed device, 
with little resemblance to any other 'perf/reperf' I've ever seen. He started to 
take it apart and got sidetracked and does not remember what became of some 
of the parts. 

The RT set was also different from the one I owned in that it had two motors. 
One was part of the TD system, and the other one drove the perf/reperf which 
might have been a BRPE. It was definitely different from other such devices. 

I may have a few photos of it. I know I took a few the last time I saw him, but 
locating them might be a chore. If there is any interest, let me know off list and 
I will start a search for the photo(s) I took of it. I know that none of the photos 
would be of 'great detail', just a few from a few feet away at different angles, 
maybe. I suspect that this item is still sitting in his garage, getting dirtier and 
closer to the 'trash gondola', if it has not already met this fate. 

73, 

Ralph - W8ROI 

----- Original Message -----

From: "Jim Haynes" <jhhaynes at earthlink.net> 
To: "Keith Lueck" <kwlueck at swbell.net> 
Cc: "Gerry" <gblock at sbcglobal.net>, "Greenkeys" <greenkeys at mailman.qth.net> 
Sent: Friday, December 18, 2020 12:46:39 PM 
Subject: Re: [GreenKeys] Teletype DRPE tuned reed mechanism 

On Fri, 18 Dec 2020, Keith Lueck wrote: 

> I'm curious as to the market for this... Feeding this beast would've taken 
> something electronic, not electromechanical.... Maybe high-speed 

First used, I believe, in FAA system called BDIS. There was ADIS, an 
acronym for Automatic Data Interchange System, which was for weather 
data, which FAA calls Service A. So BDIS was for Service B, which is 
flight plans and other kinds of directed messages, and is a sort of 
pun on ADIS. 

Second use in a 750 wpm tape-to-tape system, Dataspeed Type V. I suspect 
very few of the receivers were sold, as the main use of this system was 
for data collection where the transmitter was at an out office location 
and a computer connected direct to the modem at the receive location. 

Another use was in Long Lines Project 176 high speed system for the 
government. I think it was here that the eddy current problem cropped 
up. 
______________________________________________________________ 
GreenKeys mailing list 
Home: http://mailman.qth.net/mailman/listinfo/greenkeys 
Help: http://mailman.qth.net/mmfaq.htm 
Post: mailto:GreenKeys at mailman.qth.net 

>>> Jordan Spencer Cunningham's GreenKeys Search Tool: https://teletype.net/gksearch 
>>> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/ 
>>> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html 
>>> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html 

This list hosted by: http://www.qsl.net 
Please help support this email list: http://www.qsl.net/donate.html 
Message delivered to w8roi at wowway.com 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20201218/acfdf5ed/attachment.html>