Vacuum tubes, With your own hands
22-September-2023 Friday
Homemade radio tubes in a home workshop. Why, why, by what means?
27-February-2022 Sunday
Lamp amplifier based on JCM800 2204 (part 3)
17-January-2021 Sunday
Goggles "UK4G-TPNV-02"
09-January-2021 Saturday
A mask that glows in the dark