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6AQ5 CW Transmitter


6AQ5 CW Transmitter

How's this for no-frills hamming? This cute little 40 meter CW transmitter is nothing more than a 6AQ5 oscillator coupled to the antenna. Power output is on the order of 6 Watt

post 01 Sep 2024


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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