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30 Volt Computer Power Supply Stack


30 Volt Computer Power Supply Stack

A bonus was that i discovered that these did not need a standby load connected to the supply to keep them running just apply mains power and close the Start lead to ground

post 01 Sep 2024


Projects_Homebrew Links

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Homebrew Satellite Antenna
The Arrow Antenna is a design classic: it combines light weight, compact design and functionality in a single package for operating FM dual band satellites such as AO-27, UO-14, SO-41 and SO-50

Modifica TL-922
a tutti quelli che hanno bruciato il commutatore di banda del TL-922

Interfaccia per DX Cluster
Questa semplice interfaccia nasce dalla necessita' di avere un mezzo piccolo e pratico da usare per ricevere il DX-Cluster

Interfaccia per modi digitali USB
Mi sono reso conto che con i moderni calcolatori portatili non era possibile l'uso dell'interfaccia in quanto il bus RS232 non era piu' presente


23cm Yagi Antenna building

23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency

50 MHz preamp Gain 26dB with the BFG135

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

interface-for-digital-broadcasts-with-integrated-audio

Interface-for-digital-broadcasts-with-integrated-audio 4-port HUB, with a TUSB2046. With port 1 of the HUB we drive the FT232RL; with port 2 the PCM2904, furthermore, we decided to leave ports 3 and 4 free