Two output rings on a woopy kacher
I was unhappy with the circuit as used by woopy (transistor gets hot easily), therefore I altered it along the line of a Slayer Exciter with a diode and an indicator LED from the base of the transistor to ground.
And I fabricated a second output ring, also with 12 diodes. See the attached circuit diagram and photos.
I can vary the input to the circuit from 5 Volt (uses about 50 mA, LEDs are glowing nicely) to 10 Volt (uses about 100 mA, LEDs are very bright).
But I have trouble measuring the output. I will try a bridge rectifier a capacitor and a resistor instead of the LEDs. I also plan to try a three plate capacitor on the output as discussed in this thread.
I could not find a place in the circuit for tuning with a variable capacitor. It either had no effect or stopped the oscillations.
Greetings, Conrad
I was unhappy with the circuit as used by woopy (transistor gets hot easily), therefore I altered it along the line of a Slayer Exciter with a diode and an indicator LED from the base of the transistor to ground.
And I fabricated a second output ring, also with 12 diodes. See the attached circuit diagram and photos.
I can vary the input to the circuit from 5 Volt (uses about 50 mA, LEDs are glowing nicely) to 10 Volt (uses about 100 mA, LEDs are very bright).
But I have trouble measuring the output. I will try a bridge rectifier a capacitor and a resistor instead of the LEDs. I also plan to try a three plate capacitor on the output as discussed in this thread.
I could not find a place in the circuit for tuning with a variable capacitor. It either had no effect or stopped the oscillations.
Greetings, Conrad
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