Month: January 2023

Grass Click-Tone Control Audio Stimuli Module.

I recently picked up two of these Grass Instrument Co. Click-Tone Control modules. These units have 1994 date codes and still work. From my understanding these would be used to provide test subjects audio stimuli for studies involving things like rhythmic auditory–motor entrainment, but I want to try to get it to make some music. The port on the back of the unit allows you to remotely control the output. I am hoping I can make some sort of sequencer for it and experiment with some of the internals. After briefly looking at the board it appears to be based on a pair of XR 2206 IC Waveform generators.

Top/Bottom
Ext. control logic board

Step Seq. anyone?

Please take care of each other.

Complex Subjectivity

I love making art that has multiple views to it. This complexity allows for a wider range of interpretations. A prime example is some of my reactive resin artworks that look different in regular light, UV light and in the dark.

Reused burl for the base, resin, glow pigments, florescent paints
marble chunk base, coated in glow pigment/base then feathered strokes to make holes.

Please take care of each other.

DIY Hydrophone

 Smooth-Cast® 300 Hydrophone in metal body. Hooked to Cortado MKII & H4n Pro

I built myself a piezo hydrophone. The metal ring used was kept from a disassembled camera lens. I sealed around the edges to make a box before casting the whole thing into resin. 

Resin Tip: If you have a lighter handy you can quickly brush the flame over the surface to pop the bubbles during initial casting to avoid the bubbles seen in the bottom photo.  😉  But in this case I did not have one handy before the resin setup. Far as I can tell keeping them does not hurt the hydrophones function since it’s active side faces outward.