Used a high voltage power supply, with an eBay 8 pin tube socket, and some spare resistors and pots to create appropriate bias voltages and replicate datasheet parameters.
*More Details:*
[ Ссылка ]
*Chapters:*
0:00 Intro and supply/tube overview
1:53 Circuit overview
4:25 Turning it on
![](https://i.ytimg.com/vi/AGTvsZZkOH4/maxresdefault.jpg)