SK-401 Soft-Key Keying Interface
The SK-401 safely acts as an amplifier interface to your modern transceiver to the Drake L-4 or L-4B. This unit is mounted inside the amplifier and transforms the 24-27VDC key closure to approximately 1 VDC at 1.5 mA. Without it you run the risk of severely damaging the keying circuit in your transceiver.
|Dimensions||5.5 × 3.5 × 0.5 in|