terry wrote:
Proposing to scrap some microwave ovens.
What uses are there for the power transformers?
Apparently these have 115 volt primaries and HV windings upwards of
2000 volts AC RMS.
Their power handling capacity must be of the order of 900 to 1000 VA
(volt-amps or watts)?
1000 VA at 2000 volts indicates something of the order of 0.5 amps!
Wow; 0.5 amps even at say 230 volts indicates 115 watts or thereabout
and the secondary (the 'old' primary) providing about 12 volts or
thereabouts at around 10 amps or so, provided one has a 230 volt
outlet available?
Any good (connected backwards) as a battery charger?
Ideas/criticism welcome.




I dunno about using them 'backwards'...But if you rewind the
secondary,you can get any voltage you like,and some serious current.

http://www.users.qwest.net/~ptaylor/...OTpowersupply/