[GreenKeys] [External] Just bought an Ebay ASR33 in the UK

[Rob Jarratt]

> -----Original Message-----
> From: Rob Jarratt <robert.jarratt at ntlworld.com>
> Sent: 12 February 2025 23:32
> To: 'Jones, Douglas W' <douglas-w-jones at uiowa.edu>; 'ian parr'
> <parrid at hotmail.com>; 'greenkeys at mailman.qth.net'
> <greenkeys at mailman.qth.net>
> Subject: RE: [GreenKeys] [External] Just bought an Ebay ASR33 in the UK
> 
> 
> > -----Original Message-----
> > From: Jones, Douglas W <douglas-w-jones at uiowa.edu>
> > Sent: 09 February 2025 20:53
> > To: 'ian parr' <parrid at hotmail.com>; greenkeys at mailman.qth.net;
> > rob at jarratt.me.uk
> > Subject: Re: [GreenKeys] [External] Just bought an Ebay ASR33 in the
> > UK
> >
> > From: Rob Jarratt <robert.jarratt at ntlworld.com> -- Sunday, February 9,
> > 2025
> > 12:58 PM
> >
> > > Stand screws: 6-40? What length please?
> >
> > No.  I'll quote myself from:
> > -- https://homepage.cs.uiowa.edu/~jones/pdp8/UI-8/log2015a.shtml#2015-
> > 01-13
> > As noted on Feb. 11, 2014 there were only 3 bolts out of the 4
> > required to properly mount the Teletype sub-base. Inspecting these
> > bolts, no two of them were the same, and none were exact matches for
> > the two options mentioned in the Teletype parts list. The parts list
> > indicated that 10-32 screws and had been used with an early version of
> > the sub-base casting, while later production used a self-tappng screw
and
> spring clips.
> >
> > Note that 10-32 screws and M5 screws are so similar that they are
> > frequently interchangable -- 10-32 screws fit most M5 nuts and visa
versa.
> >
> > If your TTY has a stamped low-carbon steel base pan, it probably used
> > self- tapping screws and spring clips.  If it had a diecast zinc base
> > pan, all bets are off.  I had a cast zinc base pan, and I ended up
> > making custom-made 10-32 nuts that fit square recesses in the top of the
> base pan.
> >
> > These screws, in all cases, are designed to be screwed in from below.
> >
> > It's fairly easy to remove the top from the base while the machine is
> > assembled, but putting the top back on is tricky unless you strip it
> > down to a bare base pan.  You may want to do this anyway in order to
> > replace the foam pad that sits on the base pan under the mechanism.
> > Your old pad is probably turning to mush, and new pads can be made from
> new foam.
> 
> 
> I think you are right that I should replace the foam pad, I think I
remember it
> looking a bit bad when I last looked, so it could probably do with being
> disassembled and then I can take a look at how the stand is supposed to be
> attached.

And I just noticed in the link you sent that David Tumey has made some
replacement pads, is that right? I know he made the vinyl hammers, which I
have a supply of in the UK to send to anyone who needs them in the UK and
Europe. Does the pad have or need specific properties?

> 
> >
> >             Doug Jones=