Hits
Antenna YAGI 3X3 Cross Satelliti
Questa antenna e' un miglioramento della mia antenna YAGI+TURNSTILE per traffico satelliti
post 14 Sep 2024
Projects_Homebrew Links →
Andrew Holme's projects
A loop is a balanced antenna which works without reference to ground
Automatic Antenna Switch
As I am so lucky as to have a tuned antenna for each amateur band between 80M and 6M I thought that an automatic antenna switch would be very convenient
Carico Fittizio 50 ohm
Il carico fittizio che vi illustro brevemente e' stato realizzato assemblando in parallelo alcuni restores
Come riattivare una valvola nuova surplus
Dare tensione al solo filamento Ufil per almeno 12 ore
170
A loop is a balanced antenna which works without reference to ground
As I am so lucky as to have a tuned antenna for each amateur band between 80M and 6M I thought that an automatic antenna switch would be very convenient
Il carico fittizio che vi illustro brevemente e' stato realizzato assemblando in parallelo alcuni restores
Dare tensione al solo filamento Ufil per almeno 12 ore
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 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 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