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Power Supply for small Tube Amplifiers


Power Supply for small Tube Amplifiers

For tube amplifiers, independent if HF or AF, it is more difficult to find 50 Hz transformers with appropriate output voltages for a reasonable price

post 01 Nov 2024


Projects_Homebrew Links

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Il m-counter, frequenzimetro programmabile col PIC16F84
Disporre di un lettore di frequenza facilmente applicabile ai vari QRP

Interfaccia per ricevitori Icom e Yaesu
I ricevitori e ricetrasmettitori Icom predisposti per la gestione da PC necessitano di un'interfaccia un traslatore di livello

L'ELECRAFT K2
K2 + KSB2 + KPA100. Traducendo, l'RTX base 15W solo CW, 80m-10m piu' il modulo per SSB e il modulo amplificatore da 100W con il comando remoto RS232

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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