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    OTL Amplifier DIY Project

    Dear All, I recently got an OTL kit-based tube amplifier I am not able to figure out which tube will be used on power section however pre stage is working with 12ax7. I tried using EL34 on power section, but it was not working it means some other tube will be used. Original pictures are...
    • Musa Zahid
    • Thread
    • @diy otl valve amp
    • Replies: 5
    • Forum: DIY
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