LED Valve/Vaccum Tube

thingiverse

This model is intended for use as lights for a jukebox replicating valves/Vacuum Tubes using a single neo pixel led per valve . You can string them together . I have included the Arduino sketch which reads 2 analog inputs to determine which valve and colour to use . You need to use a buffer circuit when connecting to an audio input which raises the arduino input to 2.5 volts so that it doesnt get damaged by the audio input . This is achieved by making a voltage divider using 2 100k resistors in series . The Audio input is LOW level ie RCA or headphone jack connected to the to Potentiometers The valve body is printed with clear filament rest is up to you