Add to Cart Quick view Drake L-4, L-4B, & AC-4 RCA VOX Adapter to Replace the 2 Pin Keying Line Socket RL Drake MSRP: Now: $12.99 Was: This Drake L-4, L-4B, & AC-4 RCA Adapter. is made to Replace the 2 Pin Keying Line Socket so you can easily interface to your modern or vintage transceiver to the Drake L-4 or L-4B Linear Amplifier. This kit comes with the custom plate to replace... MSRP: Now: $12.99 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $12.99 Was: Subtotal: Add to Cart