Technical Specifications
| Attribute | Details |
|---|---|
| Manufacturer | QUESTOR |
| Model | MARK I |
| Product Category | Transceiver |
Mic Wiring
Pin 1 – Mic Audio
Pin 2 – RX
Pin 3 – Switch Line
Pin 4 – Shield / Ground
Pin 5 – TX / PTT
The Old Tube Radio Archives
Old Tube Radios and Electronics Database
