TonGiesberts (80)

12-03-2024 | More than just a calculator. Measure light, temperature, differential temperature, decode NEC IR remote control codes and perform other task...

24-10-2023 | 3D Circular Christmas Tree with 36 digital 8 mm RGB LEDs WS2812D-F8 controlled externally or by an onboard Arduino Nano (ESP32)

11-05-2023 | High quality circuit for amplifying the highest audio frequencies as a correction for getting older. The circuit needs a +/-12 V power suppl...

8-02-2023 | For those who don't want to use a SMPS to power the Fortissimo-100 Power amplifier this is a low-drop high-current discrete symmetrical line...

13-06-2022 | Pre-order now! High-End, THD+N 0.0008 % at 50 W/8Ω, Max power (THD 1%) 98W/8Ω 188W/4Ω, Solid module, all THT components, ThermalTrak power t...

22-02-2022 | The Raspberry Pi 400 is a nice computer with an expansion connector on the back. Connecting something to it can be risky, especially when pr...

29-09-2021 | 28 buffered GPIOs (including GPIO0 and 1) using bi-directional voltage translators. Module for the 40-pin GPIO header in the back

25-05-2021 | 5 µH, pre-compliance testing, conducted interference emissions, 150 kHz up to 200 MHz. Based on the CISPR 25 / ISO 7637 standard for automot...

23-02-2021 | Tube or valve amplifiers need high-voltage power supplies, preferably galvanically isolated for safety reasons. The most elementary safe pow...

11-11-2020 | Fairly easy to build DC-DC converter for valve amplifiers using through hole components (just one SO-8 IC). Galvanically isolated high volta...