It often happens that we repair or simply test guitar pedal circuits and pedals. Here we use one of the most sensitive natural tools. This is the human ear.
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This is a simple 555-based high voltage inverter circuit. The high voltage DC to DC converter is suitable for small current (a few mA) but requiring high voltage electronics. For example Nixiu display, VFD, or a other vacuum tube circuit. We will use a tube guitar pre-amplifier.
The C3 capacitor high voltage type! Min 250V.
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