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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Jolida 502a triode conversion... possible? posted by Hong on May 13, 2000 at 04:03:12:
Hi, I own a 302b and have done a number of modifications to it, starting with the triode mod. I believe that the only difference between the 302 and 502 amps is a couple of resistor values are different and hence different power tubes can be used. The process of triode conversion should be the same. Do a search here on AA for Jolida triode mod and you will find a wealth of information. For the EL34 tube, the mod involves pins 3 and 4, removing a wire and soldering a 100ohm resistor between pins 3 & 4...that's it. I am hesitant to give you specifics beyond that, because I do not have a schematic for the 502, but I know that others have done it and it is not difficult. The result is well worth the effort and the cost is about $0. Good luck, e-mail me if you want more information or have more questions.Dan W.
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Follow Ups
- Re: Jolida 502a triode conversion... possible?...ABSOLUTELY! - Dan W 19:46:16 05/14/00 (0)
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