Specification Product Type HF Linear Power Amplifier Board DIY KitsDimensions 10cm x 5cm 3 94in x 1 97in Power Supply Voltage 13 8VCurrent Range 6 10AMaximum Input Power 5WMaximum Output Power 70WFrequency Range 3 5MHz 30MHz 10M 80M Band Note This is an unassembled kit you will need to solder and assemble it Features 1 High efficiency linear amplification for consistent audio performance 2 Compact and lightweight design suitable for various applications 3 Easy to assemble following clear included instructions 4 Operates within a wide frequency range for versatility 5 Reliable performance with low power consumption 6 Ideal for SSB AM CW FM low power radio systems and DIY electronic projects Package Includes 1 x 70W Amplifier Module DIY Kit