▼ Menu

VT-86

Sensibly equivalent to:
6K7
See also:
Metal Striptease - The 'Magic Three' Valves
    
Extras ▼

 

The VT-86 is the American Government specification, commercially this is a 6K7 variable-μ pentode that was designed for RF and IF amplifiers in 'modern' superhet receivers with AGC control.
The Ken-Rad name and Made in USA.
The thin metal envelope is 25 mm in diameter and, excluding the IO base pins, is 62 mm tall.
References: Datasheet & 1040. Type VT-86 was first introduced in 1936.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
m
h
a
g2
g3
nc
h
k

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
250
125
-3
10.5
2.6
0.6M
1.65
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated December10, 2017.
shape:thin.metal.tube construction:glass.disc type:pentode age:1930.1940 base:io heater:6.3v pins:8 pin:1.m pin:2.h pin:3.a pin:4.g2 pin:5.g3 pin:6.nc pin:7.h pin:8.k
Return to Main Index