| Boost converters replace the mains transformer here: 12 V goes in, 230 V comes out for the anode and 16 V for the heater. At maximum volume...
| Boost converters replace the mains transformer here: 12 V goes in, 230 V comes out for the anode and 16 V for the heater. At maximum volume...
| Every solder joint on a PCB is a thermocouple, and at 20 nV resolution, they matter. This UI calibrator answers with a 50°C oven under the m...
| Turn one Teensy 4.0 into a versatile 6-in-1 SDR radio clock that switches between DCF77, MSF60, three EFR carriers, and TDF162 at the press...
| Moving-coil cartridges put out barely a millivolt, and getting that to line level without noise is hard. This preamp revives an old John Lin...
| Discover the Elektor Zener Diode Tester Kit, a DIY bench instrument for testing Zener diodes, LEDs, and semiconductor devices up to 54 V.
| Three transformer stages switch in automatically, so the pass transistor only ever drops the minimum. A Power-MOS rectifier and voltage doub...
| An FM IF amplifier IC becomes a shortwave propagation meter. Instead of tuning a station, the CA3089's logarithmic RSSI output on pin 13 mea...
| Run two RS232 terminals in parallel on a single serial host — no power supply, no null-modem cable. A diode matrix isolates both transmit li...
| A single thermopile capsule scans the scene through pan/tilt while a coaxial ToF sensor maps depth per pixel. Richardson–Lucy deconvolution...
| An Arduino parses NMEA sentences from a GPS module, compares live coordinates against a stored boundary, and fires an SMS through a GSM mode...