Repairing A Variac
 

""The definition of insanity is doing the same thing over and over and expecting different results."
Einstein "

In that light I cite the repetition ad nauseum in US schools that causes it to take 12 years for learning that should take 6.

"Therefore, the definition of sanity must be doing different things on each attempt, which sounds much like trial and error. "

Sounds like research. An hypothesis is put forth and experiments are done. Repetition is only for confirmation and peer evaluation.

These protocols are not strictly followed anymore and leave room for doubt. This is what give AGW deniers ammunition in their illogic. This is also why I do not necessarily believe some of what they purport as "science" these days. which is better this week '? Butter or margarine.

If you want evidence of tampering with science look at Monsanto, which due to their follies in greed is now facing a class action lawsuit which they are likely to lose.

But they won't pay for it. The stockholders, employees and customers will.

Now THAT'S Usenet thread drift !

Repairing A Variac
 

Sorry, I didn't finish that-

ipse puer possit quasi libras salis

Repairing A Variac
 

On 1/05/2018 10:15 PM, wrote:
OK - from 20,000 feet, and with over 45 years around electricity, some of it with a license, if I were to attempt to fix this beast, I would make sure it met *ALL* the proper life-safety requirements. If windings are shorting internally, then the insulation below them is compromised. Fish Paper comes to mind, then dielectric varnish.

If there are any doubts, the device goes off to the salvage yard forthwith. Perhaps I am OK with messing about with unsafe stuff, but I may not be the end-of-the-line.

As Kutztown is at the end of next week, there will be good Variacs a-plenty from an amp or two up to 20 amp monsters, most of them selling for less than their salvage value. These things are neither scarce nor expensive if one knows where to look.

I keep two Heathkit IP 5220 Iso-Variacs A small write-up with pictures is attached below (not mine).

http://www.byan-roper.org/steve/stev...-variable.html

Peter Wieck
Melrose Park, PA



Nice unit !!

Repairing A Variac
 

On 5/1/18 9:15 AM, wrote:
I keep two Heathkit IP 5220 Iso-Variacs A small write-up
with pictures is attached below (not mine).

http://www.byan-roper.org/steve/stev...-variable.html

Those are nice, but a bit undersized for what I work on.

So I bought a 20 amp Sola "Harmonically balanced" (four
winding) constant voltage transformer. From about 85-145 v
it will hold a steady 120 v and a reasonable looking sine
wave.
I put a three position "center off" switch on the front
panel to select "Line Neutral" "Floating" or "Line Ground"
for the "neutral" line on the output.
Following that, I put a 20 amp Variac wired for 10% boost at
max.
Then came the metering.
0-150 vac meter, 0-30 amp ac meter, and a 4-wire 3000 watt
ac dynomometer or direct reading of the load in watts.

Just for good measure, all the cords, plugs and outlets
are rated at 20 amps.

I also have a 2500 watt 400 Hz inverter for working on old
aircraft equipment.

If you're going to do something, do it right.

--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com

Repairing A Variac
 

On Tuesday, May 1, 2018 at 9:31:07 PM UTC-4, Jeff Liebermann wrote:

The horse is dead. It will remain dead. The stroke of the connected
activities, and in spite of whatever kind. Let it rest.

That is the difference between a machine and a person.

The horse is dead.
It will remain dead.
Continued beating notwithstanding.
Let it rest.

Once upon a time, pounding salt was an honorable job for the crippled and handicapped.

Peter Wieck
Melrose Park, PA

Repairing A Variac
 

"Once upon a time, pounding salt was an honorable job for the crippled and handicapped. "

I believe it. I use unrefined sea salt and it clumps. And it also seem to eat grinders, even ceramic ones. It wrecked the fininsh on the inside of my mortar and pestle. I need a small area confined in which to crush it, i.e. "pound" salt.

I think it is good for the body. Also with my other eating habits though I eat a ton of salt and grease my BP runs about 115/65 and my cholesterol is 138/1.89. I avoid refined salt (they make more money on what they take out) and refined sugar. I try to eat salad and fruit every day and especially meat. these days with commercial farming you cannot get all your nutrients from plants. You need them from the mineral supplements that they give livestock. Without them the animals would die before they got to market weight. I have a comprehensive compendium of about 22 of the most essential minerals.

When people were no longer nomadic, they noticed their health decline and moved figuring the land was "played out", and they were right. Salt played a very important role, and once they started buying land to stay there for generations, salt was literally a life saver. That is why they used it as currency. The dead have no need for gold. How else would something that is not rare or a precious metal become thought of as money ?

I'll mention thread drift, but I can never bitch about it after what I just did to my own. HA. From a variac to commercial farming, nutrition and evolution of homosapiens. But then I know they can top tht in SED.

LOL