JAN 7977

7.8mm numeric tube manufactured by National Electronics

The JAN 7977 is a clear glass miniature nixie tube manufactured by National Electronics. Its the military version of the NL-7977/4032 and has a black heat-shrink around it to get better contrast.
Brand/ManfacturerNational Electronics
Same Types
Likely Tyes
Symbol height (mm)7.8
Display0-9
Decimal pointnone
BaseRTS-3
Starting Voltage (typ)170 V
Maintaining Voltage (typ)0 V
Current per Segment1.4mA
Reccomend Resistor15kOhm @ 170V, 91kOhm @ 250V, 150kOhm @300V according to datasheet

Note:

Images of the digits will follow