[Amps] Actuating a 120 VDC relay with low voltage

[Steve London <n2icarrl@gmail.com>]

I have an old PT-2500A with a 120 volt relay. Modern radios don't like such
a high voltage on their PTT circuit.

Can someone point me to a circuit that will allow control of the 120 volt
PTT relay with something in the 12-24 volt range ? Seems like it should be
pretty simple with a transistor that can handle 120 volts collector to
emitter, but I would rather have a tried-and-true circuit so I don't screw
something up.

Thanks and 73,
Steve, N2IC
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