| This Ring Light is an illumination source used with webcams, microscopes and photo cameras. It is mounted around the lens to provide an even...
Vincent Himpe (6)
| The San Francisco bay area and its surrounds have always been a hotbed of innovation and technology. Even before the “valley of heart’s deli...
| New technologies are causing the number of ICs working at the long-established ‘TTL’ (transistor-transistor logic) to decrease rather alarmi...
| From reader correspondence we know that lots of you are still hesitant about soldering SMDs (surface-mount devices), particularly integrated...
| With a modest number of components, the standard PC printer port can be transformed into an I/O system with up to 256 I/O lines. This arti...
| Occasionally, a very-Iow-frequency rectangular voltage is required. The present circuit generates a very precise 1 Hz square-wave signal...