Anyone out there ever try to key a 12v or 5 volt relay with a cobra 4 or 5 pin mic external to the radio.
Like doing a project that needs a relay to key it up when the mic is keyed. I have the circuit of a 1 second pulse to key the relay and shut back off in 1 second.
Problem is on the cobra 4 pin mics on pin 3 there is 8 volts and when the mic is keyed the voltage disappears. No Voltage and comes back when mic is released.
I need the opposite 8 volts when the mic is keyed and pulsed for...
Keying a relay with a 4 or 5 pin mic ?
Like doing a project that needs a relay to key it up when the mic is keyed. I have the circuit of a 1 second pulse to key the relay and shut back off in 1 second.
Problem is on the cobra 4 pin mics on pin 3 there is 8 volts and when the mic is keyed the voltage disappears. No Voltage and comes back when mic is released.
I need the opposite 8 volts when the mic is keyed and pulsed for...
Keying a relay with a 4 or 5 pin mic ?