Features：
1.Two permalloy pre-transformer do first-class amplification, the input transformer amplifier gain can control,low distortion, without feedback line
2.Two China Shuguang 6J8P do the second stage amplification
3.Two Chinese early WY2P do regulator respectively Stability two 6J8P Two gate-voltage , To control the distortion is smaller
4.Two Shuguang 300B-98 do power output
5.Power transformer capacity of 300W,In the power supply filament winding and voltage winding are respectively with the voltage selector switch, the output transformer is an open structure vertical installation, power 35W, which is a specially Designed for low resistance straight tube special transformer，Precise inductance, difficult to as many as
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