RM KL405V 25–30MHz Linear Amplifier with Pre-Amp & Cooling Fan

The RM KL405V is a compact, high-performance 12V linear amplifier designed for amateur use on the 10m band, or across HF bands (1.8–30 MHz) with a suitable low-pass filter. 

The KL405V requires 1–10W drive power across all modes (AM, FM, SSB, CW) and includes a six-position output power selector for flexible operation. A built-in 26dB receive preamplifier with electronic switching enhances incoming signals, activated easily from the front panel.

The V-version is equipped with an 80mm heatsink-mounted cooling fan, ensuring stable performance even during extended operation.

Key Features & Specifications

• Frequency Coverage: 25–30 MHz (10m Amateur Band)
  With suitable Low Pass Filter: 1.8–30 MHz (HF)

• Modes Supported: AM / FM / SSB / CW

• Power Supply: 12–14V DC

• Current Draw: 14–22A

• Fuse Protection: 2 × 12A

• Receive Pre-Amplifier: 26dB gain

• Selectable Output Power: 6-position front control

• Cooling: 80mm fan with heatsink (V version)

• Dimensions: 170 × 210 × 62 mm

• Weight: 980 g