▼ Menu

NT19

Sensibly equivalent to:
CV1207
    
Extras ▼

 

The NT19 transmitting triode dates from 1933.
The valve is rated at 450 W output power, and is radiation cooled. The filament is a single thread formed into an inverted 'V', and sprung loaded at the top.
The grid is a wire helix and it can be seen extending beyond the enclosing anode cylinder with a mesh end. The anode is not substantial or blackened to assist radiating away the heat generated by the electron bombardment.
A side view of the grid end mesh.
The grid helix proper.
A close-up view of one end cap showing connecting wires.
The other end.
The anchor motif.
The balloon envelope is 150 mm in diameter and, excluding the base pins, is 330 mm tall.
Reference: Datasheet. Type NT19 was first introduced in 1933.

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
17.0
5.65
7,000
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated April 26, 2013.
Return to Main Index