
Most audio tube amps we see use common tubes - usually a 12AX7 for the preamp and one of the more common power tubes such as an EL34.[Daniel], on the other hand, decided to build his own audio tube amp with a 13EM7, a tube originally used for a television's vertical oscillator. The resulting project is a wonderful stereo amp that sounds really good, to boot. [Daniel] picked up the idea of using … [Read more...]


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