60Wx2 linear standard tube amplifier

The linear standard amplifier follows the traditional circuit structure, and the power tube follows the standard connection method of the beam tube, as shown in Figure 1-8
.
    The output stage power tubes use EL34, KT88, KT100 and other beam tetrodes. The circuit is a Class A and B push-pull amplifier. The early
gate bias circuit is neither completely fixed bias nor cathode bias, but uses a semi-fixed bias. pressure method.
    When the output tube uses EI.34 for push-pull amplification, the output power of each channel can be reached. 40W×2;
when using KT88 for push-pull amplification, the output power of each channel can reach 60W×2; when using KT100 for push-pull amplification, the output power of each channel can reach 80wX
2.