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4:1 Air core balun
Detail on the balun I'm using with my new Windom antenna The PVC pipe on hand here was 1-5/8" in diameter, so I dropped a turn or a little less
post 22 Mar 2024
Toroid & balun Links →
Balun HF 4:1
Un balun 1:4 realizzato per alimentare una windom 40 20 e 10 metri
Simple balun
With these three wires I made 18 windings around the ferrite rod
A balun using ferrite rod
so here's some tips to help you make 1:1 and 4:1 current type Baluns that will save you some cash! You need
Constructing a 6:1 RF transformer
These notes primarily relate to the construction of 4:1 Unbalanced to Unbalanced, Ruthroff voltage transformers UnUn, where one end of the windings are connected to ground
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Un balun 1:4 realizzato per alimentare una windom 40 20 e 10 metri
With these three wires I made 18 windings around the ferrite rod
so here's some tips to help you make 1:1 and 4:1 current type Baluns that will save you some cash! You need
These notes primarily relate to the construction of 4:1 Unbalanced to Unbalanced, Ruthroff voltage transformers UnUn, where one end of the windings are connected to ground
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
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