|Sample and Hold
This is sample and hold module equipped with other minor circuitry to make it more versatile - clock and noise
generator. So far S&H core has been tested only and proven to be good enough. Dropout rate is in range of few mV
per minute, and pedestal error less than 5mV. This is however core performance and may be degraded by following
circuit - the lag.
The panel is made of 3.5mm thick aluminium. Painted with aluminium primer and several layers of various acrylic spray paint to achieve slight "variable color" effect. Panel writings are made in PCB fab the same way as used for PCB silkscreen. Not the most acurate, because they don't really care about silkscreen quality, but better results can be achieved in any graphic company - see VCF page. It was then protected with acrylic transparent spray paint. When panel is printed, the drilling can begin. Hollows around pot holes (about 2mm deep), hide pot's nut, so knob can be mounted fraction of mm from the panel. It can be clearly seen on empty panel photo and with knobs removed.
© 2004 Roman Sowa
Last revised September 25, 2004