Vanda F-9500A preamplifier b

Figure 3-2 (b) is the second half of the circuit, VT17 ~ VT31 group into power amplifiers, pre-amplifiers, and it is a structure composed of exactly the same oIC2 its zero serv
Vanda F-9500A preamplifier b - schematic

o circuit. Before and after class is inserted in series between the amplifier and attenuated tone control circuit, and a two-bit access control switch, it can control the tone Zouren circuit or not formed around through-o-stage amplifier in the final amplifier volume potentiometer via tone circuit Rong) 5 and RC network consisting of a recording o interfaces, common (connected amplifier circuit), high-pass, low-pass four outputs

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