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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: RE: 5ar4 arcing fuse blowing on Scott 299b posted by elblanco on March 15, 2015 at 11:12:56:
Yes. 4a 400v bridge has been installed and the dropping resistor changed to 25 ohm / 5 watt .Filament voltages are correct. Source voltages rise to about 15 vdc NEGATIVE befure arcing starts and fuse pops. Im using 1.5 fast fuse.
My wiring has been triple checked. C1,c2 and c3 have been opened and are all negative common to the can.c1and c2 caps have been checked and are ok for value , esr and polarity.
sf
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Follow Ups
- RE: 5ar4 arcing fuse blowing on Scott 299b - Steve Franklin 12:19:47 03/15/15 (2)
- RE: 5ar4 arcing fuse blowing on Scott 299b - elblanco 13:42:35 03/15/15 (0)
- RE: 5ar4 arcing fuse - unclestu 12:32:04 03/15/15 (0)
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