Anyone know of a US source for ESL toroids?

[mavric]

Charlie,
any luck on the trannies, that will be the investment, and another, does the dual trans outperform single? If you feel confident on the single, I just might come down there and buy them, or if you have a better suggestion, i am open for lessons. By the way, had a customer, worked at the same place you do, no names, but said he knew you, I will jest say airplanes, either way, nice person, spoke highly of you.

[CharlieM]

Originally Posted by mavric

Charlie,
any luck on the trannies, that will be the investment, and another, does the dual trans outperform single? If you feel confident on the single, I just might come down there and buy them, or if you have a better suggestion, i am open for lessons. By the way, had a customer, worked at the same place you do, no names, but said he knew you, I will jest say airplanes, either way, nice person, spoke highly of you.

I will PM you shortly with latest info.

[mavric]

got it and thank you. kindly check your mail as I have a shopping question on these.



>Borat, please listen and learn.

[Liquisonic]

>Borat, please listen and learn.

Steve is "chuckling" right about now

Have fun, and Cheers
Steve

[mavric]

Charlie, what was the specs on those panels again? I cannot find the post or email anywhere. I am on site a Mccaster, thanks.

[CharlieM]

Hello All,

Just updating my thread:
I just found some el-cheapo ($13 each), readily available, Antek AN-0506, 50VA 2x 115v/2x6v toroidal transformers that sound great driving my ESL's!

My fear about dual output windings is the possibility of shorting between the windings and damaging my amps. I hooked up a tandem of these with 6v windings wired parallel and 115v windings wired series and a 1- ohm/10 watt resistor in front, then cringed like hell while I gradually fed them more and more power. I am happy to report that they sound very nice and I cranked out some pretty serious volume too (not all that my amps can deliver but much louder than I ever care to listen again) and nothing bad happened. I have no equipment to measure anything except my ears and my ears say these $13 trannys will fill the bill for hybrid use (mine are crossed over at 275 Hz). Here's the web address for the Antek AN-506 trannys:
Antek - AN-0506

[geraldfryjr]

Awesome report,Charlie,they also have a 360v-0-360v transformer with two 120v primarys as well.
I was considering about trying them out as well using the custom primary technique. jer

[Few]

Very cool. Thanks for sharing the find.
Few

[mavric]

Charlie, what was that last jumper for? at the end of the step up? you are right, that was made in Italy, spagetti, lasagna, some noodles. JK, looks just like what we have have, only smaller gauge wire. I am curoius of course on how did yu find this and come to the conclussion that this will work,
Mavric

[CharlieM]

Originally Posted by mavric

Charlie, what was that last jumper for? at the end of the step up? you are right, that was made in Italy, spagetti, lasagna, some noodles. JK, looks just like what we have have, only smaller gauge wire. I am curoius of course on how did yu find this and come to the conclussion that this will work,
Mavric

That power supply isn't adjustable but the jumper does allow me to choose between two different output voltages by either using or bypassing he last two diodes and caps in the cirucuit. The schematic is shown on my blogpage-- just something I'm playing around with. Those trannys are equivalent to the 230v trannys that you and I are already using except they have (2) 115v windings instead of a single 230v winding. If you connect those windings in series, you get excactly the same step-up ratio as the trannys we have. The only question was if the insulation between the 115v windings would withstand the voltage without shorting out and they didn't so I'm OK with using them.