Complex sentence: Like many scientists at that time he was a wireless enthusiast, in 1926 he employed his electronics skills to construct an amplifier using thermionic valves (vacuum tubes) for very small electrical currents.
Split into simpler sentences: Like many scientists at that time he was a wireless enthusiast. In 1926 he employed his electronics skills to construct an amplifier using thermionic valves (vacuum tubes) for very small electrical currents.