EdEditz
Connections
The Chinese FM transmitter CZE-T251 circuitboard. Voltage supply input and RF signal output connections. As you can see the negative pole of the power input is connected to ground via the RF output coax. The 12V positive is connected to the circuitboard and goes from there to the RF power amplifier. In earlier versions the red wire would run directly to the power amp but here it runs to the power amp via a trace on the circuitboard. This is version 2.3 of the circuitboard.
Connections
The Chinese FM transmitter CZE-T251 circuitboard. Voltage supply input and RF signal output connections. As you can see the negative pole of the power input is connected to ground via the RF output coax. The 12V positive is connected to the circuitboard and goes from there to the RF power amplifier. In earlier versions the red wire would run directly to the power amp but here it runs to the power amp via a trace on the circuitboard. This is version 2.3 of the circuitboard.