Z561M

15.5mm symbol tube manufactured by RFT / WF

The Z561M is a red coated end view nixie tube manufactured by WF / RFT. It can display various symbols related to measurement units. The matching numeric tube is the Z560M.
Brand/ManfacturerRFT / WF
Same Types
Likely Tyes
Symbol height (mm)15.5
Display-,+,Ω,%,V,A,W,sinewave
Decimal pointnone
BaseB13B
Starting Voltage (typ)170 V
Maintaining Voltage (typ)135 V
Current per Segment1.75mA
Reccomend Resistor20kOhm = 1.75mA