Add to Cart Quick view Ten-Tec Rare Model 405 HF Amplifier & Matching 251, 10 Amp Power Supply in Excellent Condition Ten-Tec MSRP: Now: $349.99 Was: Ten-Tec Rare Model 405 Linear HF Amplifier & Matching 251, 10 Amp Power Supply for the Argonaut Series QRP Radios, in Excellent Condition. I tested this Amplifier on all bands and it works great with no problems. This Package includes the Ten-Tec 405... MSRP: Now: $349.99 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $349.99 Was: Subtotal: Add to Cart