| 摘要 |
The circuit of the equipment of the exchange apparatus of the central C B battery built on the basis of a pair of complementary transistors characterised in that one wire (a) of the line is connected the anode of the first diode (D1), whose cathode is connected with the first collector resistor (R1), whose other end is connected with the collector of the first NPN transistor (T1) and the third polarization resistor (R3), whose other end is connected with the base of the first NPN transistor (T1), with the sixth bleeder resistor (R6), with the first blocking condenser (C1) and with the cathode of the third Zener diode (D3), whose other ends are connected with the negative end of the battery (-B), to which also the fifth emitter resistor (R5) is connected, whose other end is connected with the emitter of the first NPN transistor (T1); and the other wire (b) of the line is connected with the cathode of the second diode (D2), whose anode is connected with the second collector resistor (R2), whose other end is connected with the collector of the second PNP transistor (T2) and with the fourth polarization resistor (R4), whose other end is connected with the base of the second PNP transistor (T2), with the seventh bleeder resistor (R7), with the second blocking condenser (C2) and with the anode of the fourth Zener diode (D4), whose other ends are connected with the positive end of the battery (+B), to which also, the eighth emitter resistor (R8) is connected, whose other end is connected with the emitter of the second NPN transistor (T2) and the exit end (WY).<IMAGE>
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