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Antenna Stealth Vertical Dipole


An antenna for the 11 meters in the attic

post 24 Jul 2024


Projects_Homebrew Links

170



Herberts Webpage
The concept of the RX converter is quite simple and nothing really new. The local oscillator is a standard colpitts crystal oscillator producing the 22MHz LO signal

Interfaccia per il collegamento di un Amplificatore Lineare
Interfaccia per il collegamento di un Amplificatore Lineare ad un moderno apparato RTX

Homebrew Crystal Radios for Sale

Hans Summers - Radio Electronics and Computing Projects


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

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