▼ Menu

2151

 
    
Extras ▼

 

This valve has no identification other than a paper label. The Type 2151 is a pentode.
The blackened anode has an oval cross section and there is a heat sink on the control grid supports. The control grid has been wound on copper rods and the third grid is of wire - a true pentode.
The pressed anode has been stitched together. The control grid heat sink is in the shape of a U.
A closer view of the top mica and grid supports.
The classic envelope is 44 mm in diameter, and excluding the UX6 base pins is 100 mm tall.
Reference: 1043. Type 2151 was first introduced in 1940.

 

Pin Connections
UX6
1
2
3
4
5
6
h
a
g2
g1
k,g3
h

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
14.0
0.3
250
250
-30.0
48
11.6
50k
2.3
Updated August 14, 2019.
shape:classic construction:pinch type:pentode age:1940.1950 base:ux6 heater:300ma pins:6 pin:1.h pin:2.a pin:3.g2 pin:4.g1 pin:5.k.g3 pin:6.h
Return to Main Index