[GreenKeys] More M28ASR typing reperf Discussion

[John, W9DDD]

Do you suppose the purpose for the keyboard reperf vs. perforator was to 
lower the cost vs. buying a mounted dome reperforator in addition to 
having the keyboard perforator. It would be interesting to know if 
Teletype or any of the customers that had the keyboard reperforator had 
a method of avoiding simultaneous operation of the selector magnet and 
the mechanical linkage?

In addition to the previously mentioned chad chute modifications for ASR 
cabinet, I've seen mod kits to convert from chadless to fully 
perforated. I don't recall if they were in the docs for the standard 
reperforator, the standard perforator or other document and it's too 
late to go back and look tonight.

(FYI fully perforated seems to be Teletypes terminology for toilet 
lid-less tape)


---
----
The above comments or recommendations are SWAG. Use at your own risk.
John, W9DDD

On 3/2/2022 8:33 PM, Nick England wrote:
> Insert standard disclaimer about the folly of making ANY definite 
> statement about Teletype equipment.....
>
> Repeat after me - ASR reperf selector magnets ARE NOT CONNECTED to the 
> rest of the ASR.
> This is true for keyboard reperf selector magnets and also for a dome 
> reperf's selector magnets.
> You can hook them up externally however you like but there is NO 
> internal interconnection to the keyboard/printer/TD.
>
> Seriously, the ASR was mainly intended to use a keyboard perf, not a 
> reperf - If you have a keyboard reperf you need to make sure you 
> aren't simultaneously trying to punch tape via the keyboard mechanical 
> linkage and also via the selector magnet. In K mode the reperf can run 
> from a completely different loop than the ASR's keyboard, TD, and 
> typing unit.
> The intent of a using a reperf was that you could be receiving some 
> separate message to the reperf from loop 1 while you are conversing on 
> loop 2 using the keyboard/printer, then later transmit that punched 
> message on loop 2 using the TD. With a dome reperf, you can even 
> receive from loop 1 at a different speed than loop 2.
>
> Nick England K4NYW
> www.navy-radio.com <http://www.navy-radio.com>
>
>
> On Wed, Mar 2, 2022 at 7:57 PM W2HX <w2hx at w2hx.com 
> <mailto:w2hx at w2hx.com>> wrote:
>
>     Hi again friends. KE3BK mentions that Mr. RTTY (Paul) thinks that
>     M28ASRs never came with full chad reperfs (meaning the one
>     connected to the keyboard, not the under dome reperf).  Is there
>     anyone on this list who can confirm/deny this? Does anyone have an
>     ASR with a full chat (punched holes) reperf next to the keyboard?
>
>     If no one has an ASR like this, then maybe he’s right. SOOOOO my
>     next question is,  what is involved in installing an under dome
>     reperf? And does anyone have a spare one of these (full chad?) I
>     assume this is just switched in and out of the loop? If an ASR has
>     both a keyboard reperf and an underdome, are they on the same
>     loop? Is there a use case where they are both reperforating the
>     same incoming message?
>
>     73 Eugene W2HX
>     Subscribe to my Youtube Channel:
>     https://www.youtube.com/c/w2hx-channel/videos
>
>
>
>     ______________________________________________________________
>     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
>     <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 navy.radio at gmail.com
>     <mailto:navy.radio at gmail.com>
>
>
>
> ______________________________________________________________
> 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 w9ddd at tapr.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20220302/9d6141a8/attachment.html>