Cardboard Keyboard and Amp with Fotosis No. 003

YouTube via lavieenjaune.
"Here are two more devices we have just completed.

The little keyboard you see in the center is based on a simple 555 timer circuit, the keys come from a busted kids keyboard and the housing was created by laminating about thirty layers of cardboard together with glue and wood screws.

The little amp is actually three amps in one. There are three LM386 2.5 Watt circuits, one for each instrument we plan to plug into it. Each amp has its own 100mm diameter 8 Ohm 10 watt speaker. The housing was constructed using a laminate of MDF and cardboard all held together with glue and wood screws.

In this video the little keyboard was being played into another of our instruments, Fotosis No. 003. The keyboards output was fed into the ring modulator of Fotosis No. 003 and modulated with a weird bleeping carrier signal.

Read more on our blog: fotosis"