RELAY_INTERFACE_FOR_AMATEUR_RADIO_TRANSCEIVERS

Published:2009/6/16 23:05:00 Author:May | From:SeekIC

The relay power ln the linear IS obtained from the -120-V bias supply，and the transmit keving output from the Kenwood is＋12 V at 10 mA maximum，The key ingredient in the circuit is the pnp driver transistor，which must be capable of handling at least 150 V at about 250 mA



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