How to Drake R-4B Ham tube Receiver Filter Capacitor Replace instruction demo D-Lab D-lab Electronics 8:42 13 years ago 9 855 Далее Скачать
No wonder the Drake R4C receiver is famous for DX and contests. This one cleans 🧽 up. moviestudioland 15:09 2 years ago 1 418 Далее Скачать
CW reception on Drake R4C in 1.5 and .5 KHz filters and notch function moviestudioland 10:13 2 years ago 189 Далее Скачать
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Drake R-4B Ham Band Tube radio Receiver Demo D-lab Electronics 3:03 12 years ago 11 646 Далее Скачать
Drake R-4B Tube Ham Radio band Receiver demo AM SSB CW Transmissions D-lab Electronics 2:59 11 years ago 9 387 Далее Скачать
