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Balun on ferrite sticks
Balun magnetico su una bacchetta in ferrite,18 giri attorno alla bacchetta di ferrite, lunga 138mm e di diametro 8mm
post 26 May 2024
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Ferrite balun 1.8 - 30Mhz
Take a length of coaxial cable (Coax) about 400mm long
Semplice choke balun 1:1 per QRP
The construction of a small 1: 1 choke balun
Choke balun 1:1
in this choke balun 1kw PEP(160m-10m)is used ferrite core from high voltage transformator from old television TESLA, 2x6 turns of RG8 mini sharmans
Construction of a 4:1 Current-Type Guanella Balun
My 4:1 current-type balun is wound on a FT-114-43 core
A simple impedance matching autotransformer for LF/MF
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Take a length of coaxial cable (Coax) about 400mm long
The construction of a small 1: 1 choke balun
in this choke balun 1kw PEP(160m-10m)is used ferrite core from high voltage transformator from old television TESLA, 2x6 turns of RG8 mini sharmans
My 4:1 current-type balun is wound on a FT-114-43 core
A simple impedance matching autotransformer for LF/MF
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