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-   -   Tony's latest traffo DIY build (http://www.diyaudio.com/forums/power-supplies/191730-tonys-latest-traffo-diy-build.html)

AJT 29th June 2011 11:09 AM

Tony's latest traffo DIY build
 
this is a power traffo using a 2inch center leg stacked to 3 1/4 inch DEECO silicon steel (noss) irons..
specs are as follows:
primary: 220 volts 60hz.
secondary1: 250volts at 2amps.
secondary2: 100volts at 0.5amps
secondary3: 12.6volts at 10 amps
secondary5&6: 6.3 volts at 3 amps

http://i5.photobucket.com/albums/y15...10629a-014.jpg
http://i5.photobucket.com/albums/y15...10629a-015.jpg
http://i5.photobucket.com/albums/y15...10629a-016.jpg
http://i5.photobucket.com/albums/y15...10629a-017.jpg

completed, there are 3 chokes sitting on top, 1/2inch, 5/8 inch, aqnd 3/4 inch.
http://i5.photobucket.com/albums/y15...10629a-019.jpg

testing prior to dipping in polyuretahne varnish
http://i5.photobucket.com/albums/y15...10629a-021.jpg

line voltage:
http://i5.photobucket.com/albums/y15...10629a-026.jpg

magnetizing current:
http://i5.photobucket.com/albums/y15...10629a-025.jpg

unloaded core apparent power:
http://i5.photobucket.com/albums/y15...10629a-023.jpg

actual unloaded power in watts:
http://i5.photobucket.com/albums/y15...10629a-024.jpg

power factor:
http://i5.photobucket.com/albums/y15...10629a-027.jpg

hesener 29th June 2011 03:17 PM

beautiful

Andy5112405 29th June 2011 03:21 PM

I don't follow what you are trying to show us with the meter ?

AJT 30th June 2011 07:28 AM

meters shows no load current, line voltage, secondary voltages, etc...

geraldfryjr 30th June 2011 02:52 PM

Very nice Build! jer

WildOne 30th June 2011 03:20 PM

Very nice work! I wound 1000s of stators for my company but this is truly a work of art. Where can I get parts and is there a site that shows how to wind these?

Thanks
WO

WildOne 30th June 2011 03:21 PM

Quick question?

At what Ohm?

Thanks
WO

AJT 30th June 2011 10:46 PM

Quote:

Originally Posted by WildOne (Post 2624102)
Very nice work! I wound 1000s of stators for my company but this is truly a work of art. Where can I get parts and is there a site that shows how to wind these?

Thanks
WO

parts are all available locally in manila, the irons used costs P110 per kilo, this traffo used about 9.5kgs. so total cost of irons is P1045 or U$24...

stateside, you can get then from Thomas and Skinner.........Thomas and Skinner

this is a good read: http://www.geofex.com/Article_Folder...es/xformer.htm

AJT 30th June 2011 10:47 PM

^in case you are wondering, secondary #4 is the "electrostatic shield" made out of a single layer of copper foil sheet...

WildOne 30th June 2011 11:57 PM

Thanks Tony,

I will be reading after diner.

WO


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