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6CY5

 
    
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The 6CY5 is a sharp cut-off RF tetrode designed for use as an RF amplifier in VHF television tuners.
Thanks to Mark Mallison for sending the image.
The thin glass tube envelope is 18 mm in diameter, and excluding the B7G base pins is 46 mm tall.
Reference: Datasheet. Type 6CY5 was first introduced in 1958.

 

Pin Connections
B7G
1
2
3
4
5
6
7
g1
k,s
h
h
a
g2
k,s

 

Absolute Maximum Operating Conditions
Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.2
125
80
-1.0
10
1.5
0.1M
8.0
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 16, 2019.
shape:thin.glass.tube construction:all.glass type:tetrode age:1950.1960 base:b7g heater:6.3v pins:7 pin:1.g1 pin:2.k.s pin:3.h pin:4.h pin:5.a pin:6.g2 pin:7.k.s
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