Tube power amplifier driven by NE553201
Source: InternetPublisher:MartinFowler Keywords: Tube power amplifier NE5532 BSP Updated: 2020/05/12
The power amplifier circuit of this machine is shown in Figure 2-16, and the power circuit is shown in Figure 2-17. The circuit principle will not be described in detail. The filament
6.3V voltage is obtained after being stabilized by LM317T, and can also be connected as shown in Figure 2-18 The constant current source circuit shown
is beneficial to extending the life of the filament, but debugging is a little troublesome. R is about 1.5fl. When making the coupling capacitor, be sure to use high-quality CBB capacitors
or tantalum electrolytic capacitors. The resistors , except those indicating the power, use 0.25W metal film resistors D.
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