I needed a way to generate pressurized air without making too much noise and so I built my own air compressor out of 8 modified fridge compressors, a 9l tank, a pressure switch, a relay, an oil separator, 8 check valves, 8 solenoids, cables, tubing, and fittings.
For reducing the venting noise and oil on the floor I will likely connect all solenoids to another oil separator and add a suppressor to it.
The combined output of 8 fridge compressors is also not that bad and so I will look for a larger tank, in the future.
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