Summary
4251A triode, transmitting; air cooled. Made by S. T. C. Filament 10 volts at 16 amps; anode 3 KV at 600 ma max; dissipation 1000 watts up to 30 Mhz; mutual conductance 3800; amplification factor 10.5.
Physical Description
Cylindrical glass bulb with necks at each end, standing on display board. Grid connection at top of bulb. Top and bottom connections are ceramic. Anode is connected via a metal ring clamped around bottom of lower neck. Asbestos pads distribute pressure of clamp. Filament is connected by two pins on base.
More Information
-
Collection Names
-
Collecting Areas
-
Acquisition Information
Donation from Australia: Munitions Department, 02 May 1947
-
Manufacturer
Standard Telephone & Cables Ltd (STC Ltd), Alexandria, Greater Sydney, New South Wales, Australia, 1940-1945
-
Inscriptions
Bulb: NL45/4251A/F/10.0.V.
-
Brand Names
-
Classification
-
Category
-
Discipline
-
Type of item
-
Overall Dimensions
570 mm (Height), 490 mm (Circumference)
-
Keywords