[GreenKeys] Printing Selectric

Wed Oct 31 17:18:56 EDT 2018

In the late 70's/early 80's, a buddy of mine had a pair of computer printer Selectrics (I don't think they were 2741's - I found that model on youtube, and it looks more "computerish" - my buddy's units looked like a plain Selectric) that he'd rescued from a dumpster.  IIRC, it used an 8-bit "parallel" - actually you had to drive 8 solenoids - interface and it had an EBCDIC type ball - I seem to recall that regular Selectric type balls didn't fit his machine, which was a drag.  He had it working with his COSMAC Elf.  I pinged him to see if he still has one that he'd be willing to part with for the OP.   
Keith

      From: Jordan Spencer Cunningham <js at cunni.co>
 To: Keith Densmore <ve3gem at gmail.com> 
Cc: Green Keys <GreenKeys at mailman.qth.net>
 Sent: Wednesday, October 31, 2018 4:06 PM
 Subject: Re: [GreenKeys] Printing Selectric

I know you probably want the real thing (I would prefer the real thing this over this), but if you wanted to do some serious DIY work, you could convert a regular Selectric like this guy did: https://hackaday.com/2012/06/13/turning-an-ibm-selectric-into-a-printer/
Probably much slower printing speed than the real thing, too. Based on the videos he has, maybe 3-4 characters per second maximum for whitespace, 1-2 CPS when actually printing?

Anyway, good luck.
--Jordan
On Wed, Oct 31, 2018 at 2:25 PM Dave Wade <dave.g4ugm at gmail.com> wrote:

Andy,  Most of the Selectrics  that pop up are just the normal typewriter. These are purely mechanical beasts and so not easily converted to use with a computer or even Modem. The ones with electrical connections are usually referred to as “I/O Selectrics” and then have solenoids and switch to allow them to be operated electrically.The IBM model number was the 2741, but there were also Mag Card and mag Tape Selectrics which can be adapted to use with a computer/modem. IBM provided adaptors for these.The “Electronic Composer” which was designed for typesetting also has an IO interface, but it has proportional spacing so perhaps not as useful.There are also modified units about that were adapted for use in Word Processors and similar machines.  I have owned a Mag Card and an Electronic Composer and now have am IO Selectric but it needs a lot of work to get it working. DaveG4UGM  From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net> On Behalf Of Barnett, Andy
Sent: 31 October 2018 19:53
To: Paul Heller <paul0926 at comcast.net>
Cc: Greenkeys <GreenKeys at mailman.qth.net>
Subject: Re: [GreenKeys] Printing Selectric I see selectrics coming up from time to time here in s Florida. Is there a particular model that identifies rs232?Cheers Andy
On Oct 31, 2018, at 3:49 PM, Paul Heller <paul0926 at comcast.net> wrote:
The did exist. I used one in the late 70s. It has an ascii rs232 Interface. I’ve been looking for one for years. Unobtanium. Paul
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On Oct 31, 2018, at 7:07 PM, Keith Densmore <ve3gem at gmail.com> wrote:
Greetings All,Every few years I put out a want for any kind of IBM Selectric with some/any kind of computer interface. I know they existed, both as an IBM printer and were sold after market in the late seventies with an ASCII interface. Any info, leads etc. ThanksKeith ve3gem 
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