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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Rectifier flash posted by vacuumtube1954 on March 19, 2012 at 01:22:18:
I have experienced the same issue in a properly designed circuit. After replacing the tube with a new tube the arcing issue goes away.
At times an input capacitor that is higher in capacitance than recommended by the tube manufacture can cause arcing too. I believe the 5R4 is rated for a maximum of 20uF.
If your PS is an input choke type, placing a .2uF oil or film cap on the inbetween the rectifier and choke will reduce the large start up spike and the arc at start up in the rectifier tube will stop. I would recommend a .2uf capacitor voltage rating at lease 3x the operating voltage.
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Follow Ups
- RE: Rectifier flash - Neff 04:03:15 03/19/12 (2)
- Thanks Neff ! - vacuumtube1954 12:49:21 03/19/12 (1)
- RE: Your're welcome !..............nt - Neff 18:38:40 03/19/12 (0)
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