VHF Linear Amplifier 600W Board (2m Band, 143–148 MHz)
 
High-efficiency linear amplifier board for the VHF 2m band.
Designed for 2x HT20340s LDMOS devices.
Suitable for all modes including CW, SSB, FT8, RTTY, EME, FM, etc.
 
Main Features
RF Input Power: 0–10 W max
RF Output Power: up to 600 W max
Supply Voltage: 48–54 V DC (Need 53.5V for full output)
Current: ~13-15 A
Efficiency: up to 80%
Class AB push-pull design
High-power, low-loss wideband TLT transformer for optimal efficiency
Temperature-regulated bias circuit
 
Board Dimensions
Main board: 130 × 100 mm
 
Note: 2x HT20340s ldmos transistors not included.