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Old 24th March 2005, 04:26 AM   #291
Coulomb is offline Coulomb  England
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Quote:
hows about some preamp boards for a change! Pleezeeeeee.....
Kari is working on a CCS X BOSOZ in a dula MONO configuration. Can be found under the heading "Heatsinks for BOSOZ"

Anthony
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Old 24th March 2005, 04:31 AM   #292
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by Coulomb


Kari is working on a CCS X BOSOZ in a dula MONO configuration. Can be found under the heading "Heatsinks for BOSOZ"

Anthony

http://www.diyaudio.com/forums/showt...227#post604227

here..
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Old 24th March 2005, 04:32 AM   #293
RKH is offline RKH  United States
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Default Mini-A transformer

Has any one found a suitable transformer for the mini-A? Avel (the ratings carried by Parts Express don't seem to fit the bill)? Plitron? Custom from Victorina Magnetics?

Just checking to see what folks are thinking.

Thanks,
Ryan
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Old 24th March 2005, 04:34 AM   #294
jleaman is offline jleaman  Belgium
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Default Re: Mini-A transformer

Quote:
Originally posted by RKH
Has any one found a suitable transformer for the mini-A? Avel (the ratings carried by Parts Express don't seem to fit the bill)? Plitron? Custom from Victorina Magnetics?

Just checking to see what folks are thinking.

Thanks,
Ryan

i phoned plitron yesterday for a

10-0-10 @500va they wanted 135.00 canadian with out shipping

OUCH!!!

Brian said when i asked him about 60$ Us i believe from Victoria magnetic's.
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Old 24th March 2005, 04:43 AM   #295
Coulomb is offline Coulomb  England
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Check out this transformer, one per channel should be plenty.

182S12-ND from Digikey about $76 CAD, $61US I purchased two for my Aelph-X.

Power=Volt Amp (VA) 225
Secondary In Parallel 12VAC@18.76A

Regards

Anthony
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Old 24th March 2005, 04:46 AM   #296
RKH is offline RKH  United States
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Default Transformer options

I just looked at the Avel site:

http://www.avellindberg.com/transfor...ange_specs.htm

A few options exist there, but no prices are listed. I have, in the past, recieved quick response from them for requests for a quote.
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Old 24th March 2005, 04:46 AM   #297
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by Coulomb
Check out this transformer, one per channel should be plenty.

182S12-ND from Digikey about $76 CAD, $61US I purchased two for my Aelph-X.

Power=Volt Amp (VA) 225
Secondary In Parallel 12VAC@18.76A

Regards

Anthony

Maybe 2 of those per stereo amp : O ) Brian suggested 500va for a stereo block.
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Old 24th March 2005, 05:01 AM   #298
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Victoria Magnetics would be the least expensive but still high quality route to go. I had them wind a 2X15 @ 320 VA for my Mini and it was about 65.00 plus shipping.

Mark
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Old 24th March 2005, 05:54 AM   #299
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by Mark A. Gulbrandsen
Victoria Magnetics would be the least expensive but still high quality route to go. I had them wind a 2X15 @ 320 VA for my Mini and it was about 65.00 plus shipping.

Mark

I need to buy 3 of them and sell my aleph 2 victoria magnetics ones

I haev 2 1kva brand new never used Vm trannys used for briangt's aleph 2 boards for a aleph 2.. humm wonder if any one needs them..
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Old 24th March 2005, 09:54 AM   #300
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Ok folks

I have been researching options for the softswitch board mentioned earlier, and as it requires various logic chips there will be gates left over as they tend to come in multiples of four or more.

So that got me thinking- should we split this project out of the MiniA thread and make a complete amp control module, with soft switch, soft start, dc and temperature protection? I am quite willing to design and prototype this, but as I am limited to the free version of Eagle I cannot really lay out the boards, as they will likely be too big, especially if we use a pcb mounted transformer.

Thoughts?
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