[GreenKeys] Teletype safety

[David S]

I got zapped today, fortunately I didn't wound/burn myself, but it did 
remind me these machines were made in a different era.

When working on my machines, I am very aware that they should be 
unplugged given the large number of exposed points you could potentially 
touch.  I keep it part of my mental checklist to explicitly check power 
is disconnected before messing around with anything below the paper 
feed.  On my M28 wall mount, there is fiberboard covering the 
connections on the LESU, but there are spots here and there that would 
probably be dangerous. Fortunately, I did have my machine unplugged or 
my zap would likely be much worse (I assume up to and including the worst).

My motor reset switch keeps randomly tripping from time to time despite 
replacing the starting capacitor - Model 28 startup motor trouble – 
Stickelman.net 
<http://stickelman.net/index.php/2026/06/19/model-28-startup-motor-trouble/>

Thinking I might be able to reach this reset switch from the underside 
(rather than taking it apart to reach it), I poked around from 
underneath and must have hit a lead going to a capacitor (likely the 
starting cap) when I got zapped.  I should have known this would be a 
hazard, but I didn't really think of it until now.

So for those that are new to teletypes be aware they will bite pretty 
hard even when unplugged if you touch the wrong thing.
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