Digest for sci.electronics.repair@googlegroups.com - 5 updates in 3 topics

bruce bowser <bruce2bowser@gmail.com>: Feb 21 01:52AM -0800

On Wednesday, February 10, 2021 at 1:03:36 PM UTC-5, three_jeeps wrote:
> > Ben Lomond CA 95005-0272
> > Skype: JeffLiebermann AE6KS 831-336-2558
> Yes, good point - it is rather tenacious. If the connection needs to be reworked in the future, it is a little tough to remove it. I've tried teflon tape on occasion and found that it slides and shifts around so much that it is hard to get a clean wrap so to speak. One good thing is that teflon tape has a very high dielectric strength, something like 6kv at 0.001 inch thick, (or is it 0.001? i forget). It would do quite well in RF applications.
 
What are some foreign equivalents to the jeep or Humvee (HMMWV)?
"Peter W." <peterwieck33@gmail.com>: Feb 21 04:21AM -0800

G-Wagon
Unimog
 
Borh by Daimler.
 
Wolf by Land Rover
 
Sherpa by Renault
 
All that I can think of, offhand. There must be more.
 
Peter Wieck
Melrose Park, PA
Hilda Winkler <hildawinkler77@gmail.com>: Feb 20 09:38PM -0800

On Saturday, February 20, 2021 at 9:49:24 AM UTC-5, Hilda Winkler wrote:
> > > is the ps board you have compatible with my tv.???
> > Not sure, there are several screen sizes and LED arrangements that differ between models for the KU series. Some of the KUs have a plug in wire harness for the LEDs and others plug directly into the display with an edge connector. There is a "version" number on the model number label, usually four characters. Get that version number and I'll check.
> OK, the version number is.. : FAO1...
Samsung un55ku650dfxza
Jon Elson <elson@pico-systems.com>: Feb 17 03:00PM -0600

> night
> and colder? The system is York Borg Warned from 1965. Anyone know if
> there is a way to manually turn the heat on?
 
Can't say about your system. We have hydronic heat here (water-filled
baseboard radiators, a circulating pump, zone valves and 24 V AC gas valve.
The zone valves have a manual override catch that will lock them open. I
guess that was provided in case there was hope of convection, but I doubt it
would work on our system.
 
Some gas valves have a manual override to turn the gas on, but you'd need to
be VERY careful to not overheat the heat exchanger without the line-powered
fan or circulator.
 
What we did was disconnect the furnace from the hard-wired power and connect
to a generator. It is apparently illegal to have a furnace fed from a plug,
so we have to unwire and then rewire every power failure.
 
A gas-fired furnace doesn't draw very much electrical power.
 
Jon
Jon Elson <elson@pico-systems.com>: Feb 18 08:47PM -0600

Peter W. wrote:
 
> rod. The three times we have had to use it for more than a couple of
> hours, it has worked nicely. Usually, we run a single-ended extension cord
> to our neighbors for their refrigerator as well.
 
Yes, we have a much smaller generator. We have only used it once for an
extended outage. It was WONDERFUL to have it, though. We ran extension
cords all through the house, and ran the refrigerator, freezer, cell phone
chargers and the furnace.
 
Since the events where this has been needed are so rare, having to rewire
the furnace is not a big deal. I'm more worried about the gas valve
thermocouple going out in the middle of the night.
 
Jon
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