My mystery transformer.

azira · 9th June 2004, 02:59 PM

I found this transformer in some random pieces of an unknown power supply. Clipped the wires and measured up the voltages.

On the left, AC comes in the top 2 terminals.
On the left, bottom three terminals are 32VCT
On the right, bottom 3 terminals are 18VCT
On the right, top two wires are 32V.

What I don't understand is why the top two wires are different. They are made out of it seems some very stiff solid 22AWG wire and covered some a plastic sleeve the slides loosely. They were wired directly to a bridge rectifier that was mounted at the base of the xformer.

Since the flash killed my measurements, it's aproximately 4" x 4" x 2.5". Any idea on the VAs I might expect?
Thanks.
--
Danny

peranders · 9th June 2004, 03:03 PM

50-80VA is my guess ,maybe 100 VA

dhaen · 9th June 2004, 03:14 PM

Thicker secondary wires can be brought straight out. Being fragile, thiner ones need to be secured and connected to a tag or a thicker wire for use by us clumsy punters.

Make sure the widings you use are truely secondarys, and are not taps of the primary

azira · 9th June 2004, 10:52 PM

I'm paranoid about the mains

I checked the DC resistance of the windings to find the taps and make sure there weren't any shorts. The windings are as I mentioned them.

Thanks for the info.
--
Danny

rasmus · 9th September 2007, 06:42 PM

hi pics of my super amp

9th June 2004, 03:03 PM	#2
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	50-80VA is my guess ,maybe 100 VA __________________ /Per-Anders (my first name) or P-A as my friends call me Tube Buffered Gainclone in work \|Thread

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9th June 2004, 03:14 PM	#3
dhaen diyAudio Moderator Emeritus Join Date: Jun 2002 Location: U.K.	Thicker secondary wires can be brought straight out. Being fragile, thiner ones need to be secured and connected to a tag or a thicker wire for use by us clumsy punters. Make sure the widings you use are truely secondarys, and are not taps of the primary

9th June 2004, 10:52 PM	#4
azira diyAudio Member Join Date: Dec 2003 Location: Near Seattle	I'm paranoid about the mains I checked the DC resistance of the windings to find the taps and make sure there weren't any shorts. The windings are as I mentioned them. Thanks for the info. -- Danny