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6AN8

 
    
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Type 6AN8 is a triode-pentode of American origin first introduced during 1954.
In Wireless World December, 1954 are details of three new valves for American colour television. The details refer to their use in Model CT-100.
6AN8: The pentode section is used as a video amplifier or reactance valve while the triode performs variously as a phase detector, gating valve, oscillator or phase splitter.
6BY6: A miniature heptode. This is used as a synchronous detector, and the local oscillation from a separate source is applied to g3 (the second control grid).
6BC7: A miniature triple diode. This provides the three DC restorers used on the red, blue and green colour component signals immediately before they are applied to the tri-colour tube.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 47 mm tall.
References: Datasheet & Wireless World. Type 6AN8 was first introduced in 1954.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
a(t)
g1(t)
k(t)
h
h
a
g2
g1
k,s

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
mAa
mAs
ra
rk
gm
6.3
0.3
200
150
9.5
2.8
300k
180
6.2

 

Absolute Maximum Operating Conditions
Triode
Va
Vg
mAa
ra
gm
μ
200
-6
13
5750
3.3
19
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated May 20, 2013.
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