Features Good stability: Power amplifier adopts imported RF power amplifier tube for Motorola, which has better linearity and stability Good heat dissipation: The power amplifier is equipped with a large heat sink, has better heat dissipation and protection Working performance: The working frequency of this amplifier is 1.5‑54 MHz, the input power is 3‑5 W, can provide high output power PVC and aluminum alloy material: This power amplifier is made of PVC and aluminum alloy, has good strength and long service life Application: This line HF power amplifier board is suitable for FM radio amateurs FT‑817 KX3 CW AM FM etc. Function: 1. Good stability: Power amplifier adopts imported RF power amplifier tube for Motorola, which has better linearity and stability 2. Good heat dissipation: The power amplifier is equipped with a large heat sink, has better heat dissipation and protection 3. Working performance: The working frequency of this amplifier is 1.5‑54MHz, the input power is 3‑5W, can provide high output power 4. PVC and aluminum alloy material: This power amplifier is made of PVC and aluminum alloy, it has good strength and long service life 5. Application: This coating HF power amplifier board is suitable for FM FM radio FT‑817 KX3 CW, etc. Specifications: Item Type: Linear HF Power Amplifier Material: PVC and aluminum alloy Parameter: Frequency: 1.5-54 MHz Operating voltage range: 12-16 V DC Input power: 3-5 W Input and output impedance: 50 ohm SMA Air Cooling: Forced fan cooling Package list: 1 x Linear HF Power Amplifier Note: Output prohibits open circuit, short circuit, prohibits more than 2 Bobbi.< /a> Package List 1 x Linear HF Power Amplifier