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Old 26th October 2005, 11:14 PM   #1
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Default Anyone know a good source for cheap transformers?

I am building up a bridged (or parallel...dunno yet) lm3886 amp, and I want to milk as much wattage as I can from the suckers, so I'd like to put around 36v on them. I rigged up a bipolar power suply from a 24-0-24 3A (144VA) tranny I had to test out one of them. I got about 35.4 volts loaded and found it to me most deficient in the current department...sag city!

So I guess I need Something more like a 25-0-25 4A tranny for each chip... or a single 25-0-25 8A for the pair. I'd even go with two 25-0 trannies at 4A each if it is cheaper.

Anyone have a good source for cheap trannys like this other than cannabalizing old printers?
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Old 27th October 2005, 02:39 AM   #2
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Try ApexJr?

I'm sitting on a whack of 12VAC ~6A trafos (estimate based on the 20VA/ib rule of thumb). You'd need to stack 4 for your application.

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Old 27th October 2005, 04:57 AM   #3
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How much?
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Old 27th October 2005, 05:03 AM   #4
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$5 USD each + post?

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