Example of multiplexing 6 tubes including fading effect.

All six tubes [will be] driven by one K155ID1. Anodes controlled via MPS42 + MPSA92, resistor 4.7K (1206).

Original code was written in Arduino IDE including low level optimizations (direct port controlling, simplifications in DS1307 library) due low performance of digitalWrite function.

Power: 180V, MC34063
PCB: Double sided + Mask
RTC: DS1307
Control: K155ID1 + Arduino 168
Tube: IN14 x 6
Illumination: 6x RGB SMD LEDs with common anode (disabled)

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