The IV-27 (ИВ-27 rus.) is a Soviet 13-digit (7-segment) vacuum fluorescent tube with a blue-green glow. Designed for clocks, instruments, and measuring devices. Manufacturer: Oryol Plant of Electronic Instruments (ORZEP), USSR. NOS.
Cathode-ray tube (CRT ) 6LO1I Oscilloscope RARE. Screen size is 30 X 40 mm. Green glow color. Designed for visual registration of electrical processes in various electronic devices
Cathode-ray tube (CRT ) 8LO29I Oscilloscope. Screen size diameter is 70 mm. Green glow color. Designed for visual registration of electrical processes in various electronic devices.