[GreenKeys] bulb voltage in model 28 lid

[Richard M. Gillingham]

You need to get a wiring diagram..  And a parts list for the correct 
number for the lamp(s) you're looking for.  There are light bulbs of 
several different voltage/current ratings in a '28.

There are margin lights, Open circuit(loop) lights, as well as the copy 
lights (transformer mounted on lid, I believe) you've mentioned.  I 
can't remember where I've put my manuals, but I'll look.  Trouble is, 
the wiring diagrams are quite large, and not easy to copy.  Maybe 
someone on the list has some scanned versions??

Good luck, and good print...

Gil



Henry Minsky wrote:

>
> I have a model 28 teletype, and I am having trouble figuring out the 
> bulb voltages
> for the bulbs in the cover lid.
>
> There are two bulbs for the copy lights that shine onto the paper. 
> These are 6 volts
> I believe. However, there is another light which I guess is wired to 
> the margin
> switch, and when I placed a 6V bulb in there it blew out. So I guess 
> this is a 120 V or
> something socket. On this teletype I don't think it was wired to the
> margin switch, but I'm not exactly sure where the wiring
> goes at the moment, I need to trace it out.
>
> But the question is, is this mis-wired, or is it supposed to be
> high voltage that way? It has the same sized bayonet socket as the 
> copy lights.
>
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