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Old 13th May 2011, 09:21 PM   #1
no gas is offline no gas  United States
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Default What would you make with this power TX?

I've got a NOS 1954 vintage mil spec power transformer with 750vct@190ma, two 6.3v, and a 40vac windings. What would you build with it? Must be stereo SE.
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Old 13th May 2011, 10:43 PM   #2
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Typically 1950s transformers would have 115 or 117 V primaries. So if you build a CLC filtered power supply with 6.3V damper diodes you'd have a loaded b+ (say 135mA idle) of around 480V or so.
I'd build this.
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If you need more B+ you could use SS diodes.

Last edited by rock4016; 13th May 2011 at 10:45 PM.
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Old 14th May 2011, 03:06 AM   #3
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Or a Tubelab Simple Single Ended with KT88's....

Do it point-2-point, or buy the board from George.
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