6MB8 small power electronic pipe power amplifier ----- 6MB8 Vacuum Tube Amplifier

Keywords: 6MB8, electronic pipe amplifier circuit diagram Get three 6bm8 high μ three, five-pole composite tubes. This tube is scanned in the TV airport, and the field output circuit is oscillated, the power output tube. It is now used in the amplifier as a serial power amplifier, which makes it glow, contributing in the field of audio. The circuit is simple, one 6BM8 bile duct, the triode formation premium RC coupling voltage is large, and the open loop gain is approximately 56 times. To improve the characteristics of the amplifier, add about 7dB negative feedback from the secondary of the T (output transformer) to reduce distortion. The 150pf capacitor in the negative feedback circuit is mainly to prevent the super audio phase shift from generating self-excited. The input terminal sensitivity is 0.6V, which is ideal for current CDs, radios, MP3 and other sound sources. The five tiger is amplified, although the output power is less than 4W, very suitable for bed audio. The drawings are a channel circuit. This circuit is rectified by semiconductor diode, and the sound quality is biased, and the full-wave tube 6Z4 is used. The whole machine coupling capacitor has been repeatedly exchanged, and the oil immersion capacitor is finally selected. There is no special place in this unit, the biggest feature is "small", "靓". As long as you are careful, you will give you an unexpected surprise! Author: 福 福

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