Re: Running a 208V radiant ceiling heater from 240V

On Fri, 19 Jan 2007 10:30:58 -0800, "Joel Kolstad"
<JKolstad71HatesSpam@xxxxxxxxx> wrote:

"Jim Thompson" <To-Email-Use-The-Envelope-Icon@xxxxxxxxxxxxxxx> wrote in
message news:s6v1r2ljbhbc74rdpftqov8habsgcuckec@xxxxxxxxxx
Back in my disco days I dimmed neon by cycle skipping. Caution: If a
transformer is involved pass WHOLE cycles only.

I'm sure we'd love to see some pictures of that on ABSE, Jim. :-)

BC, before CAD... I MAY have pencil schematics somewhere.

But really quite simple, TRIAC's driving the transformer... pass whole
cycles, skip cycles... ratio determines dimming... worked quite well.

Around 1980, installed in Bobby McGee's on I17, along with my fabulous
boom-box.

Don't know if it's still there or not.


I had a co-worker once who claimed he and his fraternity arranged a
"headphones only" dance night... he built a huge distribution panel/amplifier,
and everyone dancing had to wear headphones plugged into the ceiling to hear
the music.

And supposedly women actually attended this shin-dig. (This would have been
in the late '70s/early '80s.)

Which I find quite surprising...

It sounds like a scene out of Revenge of the Nerds...



...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.
.

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