7.75mm symbol tube manufactured by National Electronics

The NL-54362 is a clear glass special symbol nixie manufactured by National Electronics. It has two sets of characters that can be combinded,on the left side are size units like kilo, nano or micro, and on the right side the letter S and Hz can be found. Its likekly that this tube was used in a frequency counter or generator
Brand / Manfacturer National Electronics
Same Types
Likely Tyes
Symbol height in mm 7.75
Characters / Symbols µm,n,Hz,G,M,K,S
Decimal point none
Base / Socket SK-182
Starting Voltage (typ) 170 V
Maintaining Voltage (typ) 144 V
Current per Segment 1mAmA
Reccomend Resistor 26kOhm