Novel Gallstone Hybrid Power Amplifier 02
Source: InternetPublisher:走马观花 Keywords: Power amplifier BSP tube Updated: 2020/04/19
The gallstone hybrid power amplifier introduced in this article is novel and practical, with superior performance. Its unique feature is that the tube anode voltage and
the transistor front-stage voltage stage are combined into a group, which simplifies the circuit and reduces the cost of the whole machine. The circuit is shown in Figure 2- The complete machine shown in Figure 12
consists of five parts: input stage, tone control stage, voltage driver, power amplifier output stage and power supply. It uses
three active devices: electron tube, voltage driver module and complementary Darlington pair tube circuit. The schematic diagram is shown in Figure 2-13.
The electron tube uses 6N11, which is a medium-tu high-frequency voltage amplifying double triode. It was originally used in the high-frequency circuit of tube TVs
, but now it has become a popular audio tube. It is characterized by high conversion rate, clear and lively tone, and rich layering.
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