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NR77 output pentode

Size This valve measures 120x43mm overall and has an octal base.

This valve also carries the marking W1295.

Heater voltage 6.3V
Heater current 1.35A
Max anode voltage 250V
Max screen voltage 250V
Max anode dissipation 18W
Mutual conductance (Va=Vg2=250, Ia=72mA) 5.5mA/V

Pin Function
1 n/c
2 Heater
3 Anode
4 Screen grid
5 Control grid
6 no pin
7 Heater
8 Cathode + suppressor grid

This file was last modified 14:52:00, Tuesday September 02, 2014