General > General Technical Chat
The "All American Five", & more dangers!!
CatalinaWOW:
And remember attitudes toward HV weren't so fearful then. Every radio had from 150V to 450V inside. TVs had 15-35kV on the CRT. A huge number of stores had 15-35kV transformers to power their neon signs. Familiarity bred a certain contempt.
TimFox:
Note that the Triplett meter had an extra input connection (unshrouded banana) for the 6000 V input. I wonder if it used an external probe?
rsjsouza:
Not according to its manual straight from "the source" (CIA) :-DD
https://www.cia.gov/library/readingroom/docs/CIA-RDP70B00584R000100220001-9.pdf
(the only mention of high voltage probes is coverinh 12kV and higher)
calzap:
I owned and drove a Corvair for a few years. My mom gave me the money to buy it from my dad, and he was selling it cheaply. I really enjoyed it and the way it handled. It was a medium sized car (for the time) with a relatively heavy opposed-six, air-cooled engine in the rear. Main difference between it and other cars of the time was that you needed to be a little slower going into a corner, but could accelerate midway through it. Start a corner too fast, and that heavy rear could swing around, wheels could lose their grip, and a spin would ensue. Once you got the hang of it, it could be fun to go into a curve and let the momentum of the rear finish the steering. I drove it on gravel roads, snow and ice without a problem. It had great traction because the engine weight was over the driving wheels, which was unusual at the time. I think accidents occurred because its handling was so different, and some folks couldn't adapt.
Biggest problem for me and caused me to get rid of it wasn't the location of the engine but another design feature. It was a split block engine with the two halves bolted together with a gasket in between. Eventually, the gasket started to deteriorate, which had two consequences. First was oil leakage. Second was more serious. Recall that it was an air-cooled engine. So to heat the cabin, air was circulated through a chamber attached to the engine. When the main gasket started to fail, crankcase/exhaust gases started entering the heater chamber. Not comfortable to drive in winter with the windows open to avoid asphyxiation. Replacing the gasket was very expensive because the engine had to be pulled to do it. So, I traded it to help buy a pickup.
Mike in California
25 CPS:
--- Quote from: CatalinaWOW on May 13, 2020, 08:53:36 pm ---And remember attitudes toward HV weren't so fearful then. Every radio had from 150V to 450V inside. TVs had 15-35kV on the CRT. A huge number of stores had 15-35kV transformers to power their neon signs. Familiarity bred a certain contempt.
--- End quote ---
To a degree; those high voltages were familiar but the lack of current delivery with those sources could definitely lead to contempt for sure because the output of those were measured in mA vs. thousands, potentially many thousands, of amps from a traction power substation that's available on the supply side buss bars inside a propulsion package in a streetcar or subway car. A better comparison would be large industrial electrical distribution like 600 v three phase which is common in Canada or 480 v three phase common elsewhere with a similarly large current capability.
--- Quote from: rsjsouza on May 13, 2020, 08:37:03 pm ---600V?!? Pffft! A Triplett 630-NA was rated to 6kV! Pizz o' cake! :-DD
--- End quote ---
I've got a nice army surplus Bach-Simpson 635 that takes care of my 6 KV needs. No problem there!
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