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#1
01-11-2012, 10:21 AM
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How to hot-rod your HT with another 30V
I'm working on a new build right now and found that my HT supply was a little lower than I'd hoped. I had an idea which I tried last night and it worked so I thought I'd share. There's an unused 5V winding on the PT for a vacuum tube rectifier. Using 4 1N4004 and 4x 1000uF-16 volts I made a voltage quadrupler. This I put in series with the output of the regular bridge and then into the regular capacitor filter bank. Unloaded it adds 30V to the HT supply which should help my build a lot. This is the same circuit I used:
http://upload.wikimedia.org/wikipedi...quadrupler.svg Rock on!
__________________
If nobody laughs at your dreams they aren't big enough :) 
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#2
01-11-2012, 12:39 PM
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Wow. Great idea.
__________________
Adam Grimm Satellite Amplifiers® www.satelliteamps.com www.myspace.com/satelliteamps 619-275-2255
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#3
01-12-2012, 09:22 AM
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Further to this, under full load the 30V drops to 24V so there's a little sag but not so bad.
__________________
If nobody laughs at your dreams they aren't big enough :)
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