Don’t forget, in the US at least, you can get a cheap air regulator and 125 psi 11 gallon portable air tank at Harbor Freight for your scare gags. Posted in how-to , Misc Hacks Tagged air horn ...

The factory horn just won’t do the trick if someone’s trying to get the attention of another vehicle that’s blasting 2,000 watts of country music. ... a pressure switch, DOT air line, ...

Each air horn is tuned to a specific note of the piano keyboard which, ... [Rick’s] cardboard floor plate switch and three 9 V batteries cleverly snapped together in series for a 27 V supply ...

The horns play the 5 most recognizable notes from the Star Trek theme — and hooking it up to your car is a simple matter of plugging it into your cigarette lighter and wiring the compressor ...

The HK9-Slimline setup is universal and includes the Demon Model 730 Triple Train Horn set, a high-performance air valve, 150-psi submersible air compressor (that’s right, it’s waterproof), 3 ...