I have an old Kenwood TS-820 ham radio that has about 900V inside it on the
output tubes. I had to check the supply voltages one time and it took me
quite a while just to get up the nerve to do it (and make sure my hand -
other was in back pocket - wasn't shaking at the time!). :-)
As a side note... when changing the heating element on a 220V water
heater... turn off the circuit breaker FIRST before sticking a wrench in
there! Duh! Don't ask.
Further suggested reading:
http://hypertextbook.com/facts/2000/JackHsu.shtml- Brice
(who considers anything over 15V "high voltage")
----- Original Message -----
From: "Scott E." <yahudinyhwh@...>
To: <motm@yahoogroups.com>
Sent: Saturday, May 08, 2004 11:53 AM
Subject: Re: [motm] Power supply calibration
> Somehow, when Larry calls 120v "low voltage", I get the distinct feeling
> that I would not care to have his job.
>
> I have never been bothered much by working around line voltage. The only
> time I have had a worrisome feeling around electricity was when I was
> working as an electronics tech in the early '70s. We had an old piece of
> HP gear that needed repair. It was a square wave generator that provided
> up to 50v p-p and plenty of current. Must have weighed 150lbs. And
> tubes. Lots of 'em. And a 1300v power supply. Made me VERY nervous
> checking circuit voltages while I was troubleshooting. The other high
> voltage items I was around were the 6kv klystrons, but they were pretty
> easy to avoid.
>
> Stay safe, Larry.
>
> Scott E.
> ===================================================================
> J. Larry Hendry wrote:
>
> > In the USA, statistically, more people die from contact with what we
call
> > low voltage in the utility business (120v and 240v) than are killed by
> > contact with all high voltages combined.
> >
> > Stooge Larry
> > (off to energize quite a few uF of 138,000 volt capacitors this week)
> >
> >
> >
> > ----- Original Message -----
> > From: Paul Schreiber <synth1@...>
> > And yes, I ∗do∗ 'scare the crap' out of '950 builders, on purpose. It's
> > SERIOUS
> > when working with line voltage, ESPECIALLY the 240V overseas.
> >
> > Paul S.
> >
> >
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
>
>
>
> Yahoo! Groups Links
>
>
>
>
>