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| This Competition entry consists of the QBASIC program 'AO.BAS' which controls a small 8-channel NO converter board connected to the serial...

| Microwave Tools is a set of tools aiming to help the RF and microwave designer in several areas of his work. The interactive Smith chart p...

| The DS1620 Digital Thermometer and Thermostat provides 9-bit temperature readings which indicate the temperature of the device. With thre...

| Model cars, boats and airplanes may go out of control, causing serious danger and damage when a failure occurs in the radio control syst...

| It is clear that power consumption may be reduced if ancillary equipment is on only when the master unit is switched on. This is, for in...

| In certain cars, caravans and campers fuses are often located in a most awkward place. Where this is so, the present indicator may be of...

| The generator produces a sinusoidal signal ar a frequency of about 1 kHz. This makes it suitable Ior use in a variety of measurements, s...

| This circuit automatically disconnects a mid-range loudspeaker or a tweeter from the output of an amplifier when too much power is appli...

| Nowadays, the design of many oscillators is based on a couple of logic gates and a crysial. Unfortunately, these oscillators are very no...