Beijing Brand 6E2 EM83 Cat Eye Level Tune Indicator Vacuum Tube Valve Made in 1960s for HiFi Hi-end Amplifier Audio Senior Player Audio Fever Acoustic DIY Lab 1pc

[Music] okay so I had is strictly temporary because a 10 and I thought I can make it better by adding a vacuum to the millimeter I've got to user kids from China already assembled for one about 10 bucks they require six volt power supply for the filament and the 250 volt supply for the plate this is the schematic I used and that's how the little kid looks like when they assemble home and use a switch mode power supply with a 5 volt output same as those areas for USB power supply I didn't want to buy another high voltage transformer so I used what I already had several transformer has a step up with a travel coil connected to 120 volt means through a six point six microfiber cutting the give me about 250 volt one I had both tubes connected so during a wife making this tool to take to the pot pies and speak erotic [Music] among the board on in piece of the climate then put inside into fir