Artwork produced with the free and commercial versions of VeeCAD.

Pink Noise Generator

pink noise

Andrew Podmore : Telescope Focus Bipolar Motor Circuit:

focus

Andrew Podmore : Telescope Altitude Drive Circuit:

altitude

Battery Amp-hour Tester:

Connected to PC for controlled discharge of 8 separate lead-acid batteries

discharger

Calibrator:

Connected to PC for factory setup of multimeter style product

calibrator