SU460

SU459

SU458

SU457

Two oscillating circuits connected to the same speaker; good for repetitive beeps and repetitive granular stuff ...  

SU455

lighsensitive

SU454

light sensitive tone generator

SU453

Light sensitive unit ...

SU452

Basic light sensitive unit ... A straw is put on the sensor for more contrast. Straw pointing at light source = pitch (the lighter the higher), complete darkness = silence.

SU451

Basic light sensitive unit ... A straw is put on the sensor for more contrast. Straw pointing at light source = pitch (the lighter the higher), complete darkness = silence.

SU440

Basic light sensitive unit ... A straw is put on the sensor for more contrast. Straw pointing at light source = pitch (the lighter the higher), complete darkness = silence.