I have a box of about 50 new in the box TV and monitor flyback transformers. 1990-2006 vintage. I am not even going to try and sell these for their intended purpose as its not worth my while. There is not much of a market for repairs to old CRT computer monitors these days.

Is there any other useful fit purpose anyone can imagine for this stuff?

It is unlikely that they wouldn't be compatible with any old TVs.

Insect killers, Jacob's Ladder, hi-efficiency fluorescent light driver, hi-pot (insulation) tester....


Rich

You can build a simple oscillator circuit from a 555 chip and a drive transistor to make a HV shocker! Don't expect any stupendous results though. Better yet, dump them on eBay and who knows, someone out there may want them for a reason.

I love how ominous that sounds...

I tried putting some on eBay a while back for a couple bucks each. Not even one watcher or look even. This gives me the impression they won't sell. Therefore I was looking for some good alternative uses. I certainly can't use them all. I like the ideas offered up here. I was thinking of making a nice tesla coil one day. Keep the ideas coming.

Richard

IMHO, they aren't worth the time, expense and bother to fab a circuit around each one. I'd donate them to a tech school or college engr. lab that could use them. Calculate a value, get a receipt of sort, and claim it on your 2012 tax return. Everyone's happy!

I sold a lot of maybe a dozen on ebay for, probably, $5. Not much demand. If they were from the 50s or 60s you would find people looking but hardly anybody bothers with a 90s TV set anymore.

The market for flybacks is with the high voltage crowd that is found on 4HV.org.

The kids build Tesla coils, but informed guardians or teachers limit the energy source
to a single 9 volt battery. The skills derive from making and using switched supplies.

I would help if you knew which TV sets used them. NTE had a cross reference to all
flybacks their line of universals could replace.

Unwind or cut the wire and use the cores as AC line noise suppressor toroids on the offending appliances, electronics, etc

For ham use they do well as filament chokes.

Carl

I wonder if Moyer Electronic Supply would want them. They seem to specialize in supplying old parts to people.

Jacobs ladder: light, noise, movement, sounds like an....Infant toy...on second thought...no.

Copper is over $3 a pound at the scrap yard.

Ion Generators would do good.

Stash them away...............in 40 years everyone on the forum here will be looking for one to restore their 1993 tv!



Todd

I know of someone that was searching ebay for an old one, not long ago, to build a Tesla coil circuit. I don't recall if it had to be an old one or have certain characteristics or what, but that is a potential use. A high potential use?

Oddly enough, a buddy of mine popped round this evening and happened to mention that he was having trouble with the HV power supply for his laser engraver.

I said "Well, I've got a shed load of thyratrons and there's a guy on my radio board with some flyback transformers..."

Sadly, he wasn't convinced.

Maybe so, but is that for plumbing copper? Often the insulation needs to be burned off wiring and even then some of it remains. Copper wiring rarely pays as much as copper plumbing does.