VK Engineering

Testing a radio using miniature vacuum tubes 1Zh18p and 1Zh29p

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Testing a radio using miniature vacuum tubes 1Zh24B and 1Zh29B

VK Engineering

MultiCM Flasher

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Regenerative Receiver Using Subminiature Vacuum Tubes 1Zh29B and 1Zh24B

VK Engineering

e60

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Изпитание на регегенеративен късовълнов радиоприемник с 12Ж1Л радиолампи

VK Engineering

Testing of a regenerative shortwave radio receiver with 12J1L vacuum tubes

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Testing of a regenerative shortwave radio receiver with 12J1L vacuum tubes FINAL

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Testing of a regenerative shortwave radio receiver with 12J1L vacuum tubes Early Stage

VK Engineering

Regenerative shortwave receiver using 2Zh27L battery tubes

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Regenerative reciever on tube 2SH27L 6 volt power supply

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Радио Христо Ботев

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Raspberry Pi 4 Smart Panel

VK Engineering