Members Musicalfish Posted June 29, 2010 Members Share Posted June 29, 2010 My beloved Vibro Champ (AA764) is in need of a new power tube (it has started glowing blue) and I am going to the store tomorrow to buy one but I don't know what to ask for (in terms of bias, brand, etc.) I like my breakup to start around 5-6 on the dial, so not too early or too late. Also, I am a bit strapped for cash now so I can only afford to replace the one tube. Is it ok to replace one now and the other 3 tubes (2x 12AX7 and 1x 5Y3) later? Thank you in advance for helping me with these questions. Link to comment Share on other sites More sharing options...
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