[GreenKeys] Model 33 Teletype Restoration Update and Request for Pa...

Tue Aug 4 19:55:06 EDT 2015

any  recent    need to  know  info on  terminet  let me  know i have  2  t 
-1200s   i  want to bring  back to life  with Honeywell  black and white  
paint  jobs

I need a  300 baud   GE  Terminet in the creme   color  for a display and 
also
an  HP branded  300 baud   version to  got in the  display  with our  HP 
timeshare system as that is what it   had  as the console when we  got  it  
from maracopia  community college  district/

thanks   ed sharpe  _www.smecc.org_ (http://www.smecc.org)  

In a message dated 8/4/2015 3:23:43 P.M. US Mountain Standard Time,  
teletypeparts at comcast.net writes:

Yeah, we worked on just a few of these at WU.  The belt with the  
characters looked like little matchsticks out of a book of matches.   

Wayne
KB1FDW

____________________________________
From:  "Douglas W Jones" <douglas-w-jones at uiowa.edu>
To:  "GREENKEYS BULLETIN BOARD" <greenkeys at mailman.qth.net>
Sent:  Tuesday, August 4, 2015 5:48:27 PM
Subject: Re: [GreenKeys]  Model 33 Teletype Restoration Update  and        
Request        for  Part(s)

On Aug 4, 2015, at 4:07 PM, Don Robert House K9TTY wrote:

> In your quest for terminals I suggest you pass on the GE  Terminet.  The 
power supply could easily kill you.

But the Terminet was a beautiful machine!  When printing  at full speed, it
sounded like a creeky porch swing, and the print quality  was great compared
to any other printer I know of from that era that could  handle 120 
characters
per second.

What's so threatening about the power supply (other than the  usual hassle 
of
reforming capacitors that may well have been idle for  decades).  I've 
reformed
capacitors.  See:

--  http://homepage.cs.uiowa.edu/~jones/pdp8/UI-8/bugs.shtml#10

For a log describing how I reformed the capacitors in a classic  DEC PDP-8 
that
was last plugged in (prior to this year) in around 1978.  I reformed the
capacitors at a very low trickle of current over a  fairly long time, and 
all
but one of them now seem to be sound -- the one  was replaced.

I also replaced the PCB-laden oil filled capacitor used in the  resonant
circuit of the power supply.  These have a reputation for  exploding so
there's really no point in trying to nurse them back to  life.

Doug  Jones
jones at cs.uiowa.edu
______________________________________________________________
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

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

______________________________________________________________
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

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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20150804/bb5994a9/attachment.html>