Professional 300KΩ High-Impedance Trimmer Potentiometer for Tube Amplifiers

Precision 300K-ohm trimmer potentiometer 2-pack engineered specifically for tube amplifier bias control and high-impedance audio circuits. Perfect for vintage amplifier restoration, cb radio shop tube modifications, and high-gain preamp applications requiring ultra-high resistance values.

Essential for tube guitar amps, vintage radio restoration, and long range antenna tuner circuits where precise high-impedance control is critical. The RM065 WH06-2 construction ensures stable performance across temperature variations with smooth adjustment action for optimal tube bias settings.