8) 430C WE NOS original boxes 1974 most have wrinkled black coating on glass

Notes:

3-Element gas-filled cold-cathode tube

Contains 99% Neon, 1% argon

Krypton (Kr-85) was increased over the 430B to obtain faster and more consistent ionization  time

Peak forward anode voltage = 185V

Forward peak cathode current = 100ma

Average cathode current = 35ma

Peak inverse anode current = 5ma

Starter breakdown = 70V

Starter Vdrop at 20ma = 60V

Anode drop at 20ma = 75V

Used in: 

Translator Circuit of Automatic Message Accounting equipment

No. 1 and No. 5 crossbar telephone systems