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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: None ! For this particular tube, Good Old Stock Wins ! posted by Interstage Tranny on June 6, 2012 at 08:00:23:
Add diodes to the input to take up most of the load so new production will last, especially needed in big amps. It keeps the nice slow warm-up feature the 5AR4/GZ34.It won't hurt the sonics and the newer faster UF4007 diodes may make a noticeable improvement over IF4007 for a few cents more!
If the tube is on a PCB board you can put the diodes in series using heat shrink tubing over the PS transformer secondary B+ leads and even diodes for strength.
Make sure polarity of diodes are correct.
I found this mod 3 yrs ago @ diyaudio by an Engineer Kevin Kennedy whom had been doing it for 10 yrs + with no tube failures after. It's quite popular now.
Lastly it will help the tube last when you have a power failure where it flashes off & on quickly!
Randy
Edits: 06/06/12 06/06/12 06/06/12 06/06/12 06/06/12 06/06/12
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Follow Ups
- RE: None ! For this particular tube, Good Old Stock Wins ! - rmyauck 08:18:59 06/06/12 (3)
- RE: None ! For this particular tube, Good Old Stock Wins ! - DannyR 11:23:01 06/06/12 (2)
- RE: None ! For this particular tube, Good Old Stock Wins ! - Eli Duttman 19:35:32 06/06/12 (1)
- RE: None ! For this particular tube, Good Old Stock Wins ! - DannyR 20:15:40 06/06/12 (0)
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