Description
High-frequency miniature pentode tube.
- Code: S121089
- Manufacturer: USSR
- Weight: 0.005 Kgs
http://www.eandc.ru/catalog/detail.php?ID=2510
http://oldradio.qrz.ru/tubes/russian/short/6j5b-v.shtml
http://www.russiantubes.com/prop.php?t=12&p=131