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Ring current generator circuit diagram

2014-11-14 07:49  
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Ring current generator circuit diagram
Ring current generator The ring current generator can produce a ringing current voltage of 75-90V and 25Hz±5HZ. It is available to be used for vibrating ring in communication devices, for example, carrier, ultrahigh frequency, wire telephone. It can also be used as ring in special telephone for dispatchers, repairmen, operators on duty and other users. The power tube MJ3340 and MJE 350 in the circuit need suitable radiator to protect the power amplification tube and improve the work efficiency.