Hackaday13 年
Fog Horn Built From Plumbing Supplies
Instructables user [rog8811] was looking to build a fog horn that resembled hand ... He used a simple double-acting air pump to drive the horn, combining it with a slightly modified bottle trap.
Hackaday13 年
fog horn
Instructables user [rog8811] was looking to build a fog horn that resembled hand ... He used a simple double-acting air pump to drive the horn, combining it with a slightly modified bottle trap.