AlexiLaiho
New member
Hi, would like to change my preamp tube in my Blackstar HT-5, so the stock is the 12BH7 Sovtek tube, can I put in a 12AX7 tube? Is retubing easy? Just switch off(how long) , Open back, remove casing and slowly remove tube am I right? How much am I looking at for a JJ or Tung Sol tube and is there any recommendations?