Field Mic

May 12

May 11

[video]

[video]

May 08

May 05

[video]

[video]

[video]

May 04

[video]

May 03

the-rx:

Circuit diagram for a metronome, from Science Fun Experiments in Electronics by Hanna Höck (Logix-Kosmos, 1973)

(via puzzleoverit)

May 02

[video]