HV RF System
RF output is generated by a Siglent SDG1032X function generator, which can produce a sine wave up to 30 MHz at 60 mW. This is amplified to 5 Watts by a preamp, which feeds a power amp, producing 50 Watts. This is fed to an automatic antenna tuner, then to an inductive matching network. The matching network was formed from 1/8" ACR copper tubing, enclosed in an RF-tight ammo box. By tuning the network to resonance with the capacitive vacuum chamber, RF voltage over 2 kV is generated.