Teletype

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Tue Jun 3 14:02:35 2003

> This res. gets hot even when switched off, but just in the socket. I'm
> going to take pictures of the unit on wednesday, but a picture of the
> teletype with the cover on can be found at
> tore.nortia.no/bilder/s201002.jpg .
>
> ASCII drawings:
> (out of scale)
> ________________________
> | | | | Blue slot with card that gets hot
> | |-- |/
> | | ||
> |_________________| ||
> | | |
> |_________________|____|
>
> ____________
> | |
> | (14 O ) | <- large resistor
> | |
> | (220ko)| <\
> | (300ko)| |
> | | |- not sure
> | etc (vr) | |
> | | </
> | _ |
> |||||| ||||||


This does not sound like the standard Teleytpe electronics (the current
loop 'call control unit'). Many companies (Data Dynamics was a common one
in the UK) made their own versions of the Model 33 using Teletype
mechanics,but with their own cabinets and electronics. Some of these gave
RS232 interfaces, or isolated current looks, or single-stepped readers, or...

-tony
Received on Tue Jun 03 2003 - 14:02:35 BST