current gain

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    PWM Current buffer to drive Proportional Solenoid from PLC

    Hello (First time poster with rusty familiarity with vaccuum tube audio amplifiers) I am working with a Siemens 1212C PLC and looking to power a Burkert proportional solenoid via the PLC HSC outputs. Smaller solenoids have been successfully powered this way, but I need a bigger orifice size...
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