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#1 |
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diyAudio Member
Join Date: Jul 2005
Location: Georgia
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Have a schematic for a 300B that shows the power transformer is from a Knight Stereo 30. Looking at the schematic best i can figure is
360 - 0 - 360 200 MA 10V @ 3 6.3 @ 6 I have not found any power transformers that have 10V @ 3 |
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#2 | |
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diyAudio Member
Join Date: Aug 2003
Location: San Francisco, CA
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Quote:
It appears that the 10V taps are unused. So why do you care? |
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#3 |
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diyAudio Member
Join Date: Jul 2005
Location: Georgia
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If thats OK, then I wont worry about it.
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#4 |
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diyAudio Member
Join Date: Jul 2005
Location: Georgia
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OK, I have another ? Sorry I am very noob and trying to learn all I can.
In the schematic T3 is 5VCT 3A 6.3VAC 4A So far I have found Secondary: 275-0-275 V, 150 mA Filament winding 1: 5 V, 3 A Filament winding 2: 6.3 V, 5 A With the second filament winding @ 5A is this an issue. If I am completely lost, just tell me, cause this 3rd transformer is confusing since I does not show like T2. Thanks |
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#5 |
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diyAudio Member
Join Date: Aug 2003
Location: San Francisco, CA
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As long as the transformer has the current rating higher than the schematic, you will be fine. Your selected transfomer will be fine.
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#6 |
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diyAudio Member
Join Date: Jun 2005
Location: Iowa
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dstockwell,
If funds allow, why not just have Heyboer wind a custom job to the specs you need. http://www.heyboertransformers.com/ I'd hazard a guess it'll cost less than a hundred bucks, maybe even considerably less. No down payment to start construction, after about 3 or 4 weeks you'll get the xfrmr and a day after that the bill. Great folks to deal with, very patient and extraordinarily cooperative and the best customer service and money back guarantee of any company of any kind I've ever dealt with. Plus they make some mighty good iron, some of the best out there. Just food for thought is all, Best, mr mojo |
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#7 |
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diyAudio Member
Join Date: Sep 2003
Location: Midland, Michigan
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Heyboer may have an "off the shelf" model that will meet your specs.
I agree with Mr Mojo. Heyboer is a great company. Their trannys are well-built and affordable. Go to their website and look or e-mail them for help.
__________________
Frank |
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#8 |
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diyAudio Member
Join Date: Jul 2005
Location: Georgia
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Thanks for the info..
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