Reasonable tube design: use 1PC 6N9P and 2PCS 6L6GC tubes to amplify the signal and power, and 2PCS 6Z5P tubes to rectify; output power can reach 6W+6W, and each tube has been tested to ensure good performance. Classical circuit: adopt a two-level negative feedback circuit, with stable overall performance and low noise, very suitable for listening to classical and vocal music. The circuit is designed to be compatible with various vacuum tubes, and can derive a variety of feedback connection methods.
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