15.5mm numeric tube manufactured by RFT / WF

The Z5600M is a clear glass end view nixie tube manufactured by RFT/WF in Germany. It uses the very common socket B13B and is also available with red coating. This tube has a very special formed black cage around the digits, which gives allows the digits to illuminate the black background too. This gives the Z5600M a unique background glow, which you can see in an image below.
Brand/ManfacturerRFT / WF
Same Types
Likely Tyes
Symbol height (mm)15.5
Decimal pointnone
Starting Voltage (typ)170 V
Maintaining Voltage (typ)135 V
Current per Segment1.75mA
Reccomend Resistor20kOhm = 1.75mA