What to look for in a Model 33 Teletype - a newb's buyer's guide?
drlegendre at gmail.com
Fri Nov 21 02:05:14 CST 2014
If you - or anyone - have links to digital copies of the Mdl. 33 service /
operator's manuals, please send those my way - would be very much
I presume the rubber hammer isn't so much a /rubber hammer/ as a steel
hammer with a bonded rubber face? Sort of like a pinch roller or drive
wheel from a tape machine or turntable, and so on. Lacking the rubber
facing, I could see how that would damage the 'typewheel' as you say, in
Per your suggestion, the greenkeys list will be one of my next stops. Thank
you for the help!! ;-)
On Fri, Nov 21, 2014 at 1:41 AM, Robert Jarratt <robert.jarratt at ntlworld.com
> I suggest you subscribe to the Greenkeys list. I don't know too much but a
> couple of things to know are:
> 1. The rubber hammer perishes. Do *not* operate the machine without
> replacing it or you will cause irreversible damage to the typewheel. There
> are two ways to do this. One is to use some PVC tubing, the other is to ask
> on the Greenkeys list as someone has now manufactured some completely new
> rubber hammers.
> 2. Make sure you grease and lubricate it before turning it on. Turn it
> over by hand first. The manuals are available to tell you where to
> lubricate etc. I can supply copies if necessary.
> 3. You will almost certainly need a current loop converter. I was lucky to
> find one on eBay which works like a charm, I think there are others. The
> alternative is to make your own. There are some designs knocking around
> that don't seem too complicated.
> There are probably lots of other things, checking for excessive wear for
> I love my Model 33, hearing that sound again is wonderful, it is
> definitely something worth getting and looking after!
> > -----Original Message-----
> > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of
> drlegendre .
> > Sent: 21 November 2014 06:53
> > To: General Discussion: On-Topic and Off-Topic Posts
> > Subject: What to look for in a Model 33 Teletype - a newb's buyer's
> > I've gone off the Deep End and now I just have to re-have a Teletype
> model 33..
> > I feel awful about what became of the junker I bought for $15 when I was
> a 13
> > year-old and wish I still had it today, so I could fix it and put it to
> > So what should a mentally-challenged guy like myself be looking for, in
> a Model
> > 33 - preferably an ASR model with the paper tape reader?
> > What does and doesn't go bad? Are there any serious game-changing, show-
> > stopping or buzz-killing issues that effectively render one of these
> units as a
> > parts donor? What differences exist between the various ASR-model units,
> > they progress through the years? What does one look for
> > - and more importantly, what to avoid?
> > And one more - how do you differentiate a 20mA current-loop model from a
> > 'standard' RS-232 model? Can you tell from the rear panel, or do you
> need to
> > go under the hood?
More information about the cctech