15.5mm numeric tube manufactured by Telefunken

The ZM1020 is a red coated numerical nixie tube manufactured by Telefunken. Its equal to the ZM1020 by Philips or Siemens
Brand / Manfacturer Telefunken
Same Types
Likely Tyes
Symbol height in mm 15.5
Characters / Symbols 0.9
Decimal point none
Base / Socket B13B
Starting Voltage (typ) 170 V
Maintaining Voltage (typ) 145 V
Current per Segment 2mA
Reccomend Resistor 12.5kOhm = 2mA


See ZM1020 Siemens or Philips for images of the digits.