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6CM6

 
    
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The 6CM6 is a low frequency power amplifier beam tetrode. It can be used as a Class A audio amplifier but was mainly designed as a vertical deflection amplifier in 525 line TV receivers. The 6BW6 has similar characteristics but different base connections. The characteristic curves match the 6V6 family and the 6BW6 is essentially the 6V6 on a B9A base..
The the B9A base and lower mica.
The anode obscures all of the internal structure. This was made in the USA.
Thanks to Mark Mallison for sending these images.
The thin glass tube envelope is  mm in diameter, and excluding the B9A base pins is 63 mm tall.
Reference: Datasheet. Type 6CM6 was first introduced in 1954.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
g2
-
g1
h
h
g1
k,g3
-
a

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.45
315
225
-13
35
6
80k
3.7
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated March 10, 2019.
shape:thin.glass.tube construction:all.glass type:beam.tetrode age:1950.1960 base:b9a heater:6.3v pins:9 pin:1.g2 pin:2.- pin:3.g1 pin:4.h pin:5.h pin:6.g1 pin:7.k.g3 pin:8.- pin:9.a
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