Nixie ·Nixie
Cold-cathode Nixie symbol display showing capacitance units µF and pF for electronic measurement and instrumentation readouts.
GR4 is a cold-cathode Nixie display tube listed in a Japanese numeric/symbol display-tube table. It displays µF, pF. The table gives a maximum overall length of 44.5 mm, a maximum display diameter of 32 mm, and maximum power consumption of 0.5 W. Approximate visible distance is 10 m.
B13B Nixie 13-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
No fixed ratings are recorded for this section.
Cold-cathode display section. The source table publishes operating-point and mechanical data rather than conventional vacuum-tube gm/rp/mu ratings.
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Displayed symbols
µF, pF
Visible distance
10 m
Approximate
Connection diagram number
5
See source basing/connection diagram
Maximum overall length
44.5 mm
Maximum display diameter
32 mm
Maximum power consumption
0.5 W
Anode supply DC voltage
170 to - V
Greater than
Average anode current
2.5 mA
AnodeSupplyVoltage>170V; approximate