[GreenKeys] Teletype Model 33 ASR Restoration UPDATE *** & Question for the list

[David Tumey]

Jim,
All of the keys on the 4x machines I did were covered with that "chalk" and I had to use a series of chemical and abrasive steps to remove it.  I managed to get the keys back to the original color and finish and they seem to be holding very well.  I think I finished the KB's in Dec of 2014 and then sent them to Wayne for installation into the refinished sub-base(s) - so it's almost a year with no chalk.  I imagine that given enough time, the chalk will reappear and need to be addressed.  The final step in the restoration was to buff each key with a cloth wheel in a drill press, then I treated each with an automotive "wax" with UV blocking.
thanks.--dave
      From: Jim Haynes <jhhaynes at earthlink.net>
 To: teletypeparts at comcast.net 
Cc: GREENKEYS BULLETIN BOARD <greenkeys at mailman.qth.net> 
 Sent: Monday, October 5, 2015 7:43 PM
 Subject: Re: [GreenKeys] Teletype Model 33 ASR Restoration UPDATE *** & Question for the list
   
I was told once that the white stuff that appears on keytops is not a
fungus, as I had at first assumed, but is a component of the plastic.
Supposedly a heat gun or hair dryer will melt it, but I haven't tried.

______________________________________________________________
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
Message delivered to davetumey at yahoo.com




  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20151006/8e8eac71/attachment.html>