3x pieces QS30-1 Nixie Tube (body diameter 30mm, height 25mm, display content is number 0-9, display color orange),other PINtoPIN substitution models: SZ-8, SZ3-1, Z560M, ZM1020.

New old stock, tested and fully functioning.

Principle of operation: neon gas, cold cathode.

Displays: 1, 2, 3, 4, 5, 6, 7, 8, 9, 0

Size of the digits: 30 x 25 mm.(Diameter x height, without pin height)

Color: orange

Operating voltage: 170V DC

Normal operating current: 2 mA

Anode linear resistance: 2 million ohms