TROS – “hf generator” II
Supersimple TRansistor OScillator; from previous version it comes out that oscillation depends from frequency and size of power coil (collector coil), so have just put more coils to oscillate E-core I happened had. Electrons’ high frequency (so hi, meter can’t read a voltage) oscillation in core able to light 15W 120V CFL, so the similar process goes in SparkGapGenerator — spark gap works as a hf breaker, like a transistor here.