| The SQL-200 is a `free-standing` SQ decoder with its own power supply, intended for converting stereo receiver/preamplifiers to SQ quadr...
| The SQL-200 is a `free-standing` SQ decoder with its own power supply, intended for converting stereo receiver/preamplifiers to SQ quadr...
| There are several ways of adjusting the ignition timing of a car engine. One of the quickest and best is to use a stroboscope. The strob...
| Wherever possible in Elektor circuits, transistors and diodes are simply marked `TUP` (Transistor, Universal PNP), `TUN` (Transi...
| "Three terminal voltage regulators Wide band fet op-amp High speed 12-bit DAC Wide band logarithmic/anti-logarithmic amplifier IC socket boa...
| This circuit gives a true imi- tation of the sound of wind. Transistor T 1 is connected as a zener diode and supplies T2 with a noise s...
| Mechanical lap counters for m de! racetracks have a repu- tation for unreliability. They either suffer from poor contacts, or the mech...
| Mechanical lap counters for m de! racetracks have a repu- tation for unreliability. They either suffer from poor contacts, or the mech...
| Mechanical lap counters for m de! racetracks have a repu- tation for unreliability. They either suffer from poor contacts, or the mech...
| On the basis of the principle that the conversion of electrical energy to light in a LED must be revers- ible, its merits for practical...