While doing a workshop cleanout, I found have a half dozen avionics transformers manufactured by Raytheon.
The primary is 75 R and the secondary is split 480,000 R. It is rated at 400 volts.
They are in shielded cans, about 50mm H by 40mm dia. Look very high spec.
I am wondering if they are worth hanging on to.
Does anyone have any ideas on how such transformers might be useful for experiments or non-military applications? Either with the shielding can intact or removed.
Mark Granger
Battery operated current source ?
hmm 80:1 turns ratio, 400v in 5V out
or perhaps the ther way round...
-- \_(?)_
So you have a 1:80 center-tapped 400 Hz transformers.
-- -TV
the latter with a doubler rectifier for insulation testing. I forget what voltage defibrillators & shock 'treatment' machines use.
NT
Sounds like a current transformer spec. And that should be more like 400Hz and not 400V.
Actually, it's both. Exact specs are 400H-4KHz, 355 working volts. 20 DBM.
I am thinking of pulling the can off and using it as a magnetic field sensor.
I wonder what these would cost new today?
Mark Granger
Hz and not 400V.
Okay, that's a low power audio balun transformer of some kind. It terminate s a hardwire transmission with transformer isolation for common mode reject ion and provides identical impedances to GND from each input for maximum re jection of electric field coupling. They were probably pricey in their day, mostly for the environmental ruggedness, but I would be surprised if they' re worth more than their weight in scrap now, unless they have historical o r collector value to some wacko somewhere.
-- Check out MIL-T-27E at http://everyspec.com/MIL-SPECS/MIL-SPECS-MIL-T/MIL-T-27E_10365/ To find out what a new one would cost today, you might want to Google the military part number.
-- They'd be expensive. Check this out from the stony ages: http://www.technicalaudio.com/pdf/MicroTran/Microtran_miniature_transformers_catalog_1974.pdf
They've probably been obsolete for 30 years now, replaced by superior performance electronics.
Try posting them to a few audio sites e.g.
Tim
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