During the years 1978 till 1989, I designed and build many small effect boxes for musicians.

Effect pedals, distortioners, filters, pre-amplifires, electronic percussion units, cassette deck speed controls, delays, phasers, reverbs and all the things I cannot remember right now.

All these designs concerned devices that could not be bought in the shop (or not with that particular sound/quality).

Unfortunately there are hardly any photographs taken from these projects. The photograph aside this text shows you Julia Romanov holding her brand new cassette deck speed control. It ables to control the speed of her deck from ultra slow to high speed - to do tricky recordings.