| Pin | Function | Notes | |-----|----------|-------| | 1 | GND | Shield | | 2 | PTT | Ground to Tx | | 3 | Mod in | Audio from mic | | 4 | +8V | Switched by PTT (low current) |
Most standard Yaesu 4-pin mic (e.g., MH-1B) works directly. sommerkamp ft 250
The Sommerkamp FT-250 is a vintage solid-state Citizens Band (CB) radio transceiver, notable for its extended frequency coverage and high RF output power. Manufactured in the late 1970s and early 1980s, this "export" model was highly regarded by radio enthusiasts for its robust construction, distinctive aesthetic, and performance capabilities that exceeded standard legal limitations in many countries. It remains a sought-after item in the vintage CB collector market. | Pin | Function | Notes | |-----|----------|-------|
The FT-250 is instantly recognizable due to its specific design language common to the era: Example: For 146