Tube-number record

GDT120T

0 archive entries

ClassTrigger Tube

BaseNoval (B9A)

Construction

Primary TypeOther / special

EnvelopeGlass

SectionsTrigger tube with integrated priming light diode

Filament / Heater

Absolute Maximum Ratings

Plate Voltage400 V

Grid 1 Voltage155 V

Cathode Current25 mA

Audio Performance

Key Features

High current
Inexpensive trigger tube
Operation in poor light conditions
Integrated priming diode

Typical Operation

Mode	Plate V	Gm (µmhos)	Rp (Ω)	µ	Plate mA
Standard Primed Operation	315 V	—	8200	—	25 mA

Application Notes

Priming diode requires 315 V supply. Light anode connected via 10 MOhm to +315 V, light cathode via 10 MOhm to 0 V. Tubes may exhibit jumps of up to 20 V in operation at low currents.

Datasheets

Datasheet: GDT120T.pdf

Download PDF

Loading datasheet...

Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

Sort by

0 results