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AC6/Pen

Sensibly equivalent to:
CV1189 NR74
    
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The AC6/Pen was designed for timebase output in early magnetically deflected TVs. The cathode resistor is given as 90 Ω.
The B7 base cap and pins.
Thanks to Mark Mallison for sending the images.
The classic envelope is  mm in diameter, and excluding the B7G base pins is  mm tall.
References: Data-sheet. Type AC6/Pen was first introduced in 1939. See also 1939 adverts.

 

Pin Connections
B7
1
2
3
4
5
6
7
tc
nc
g1
g2
h
h
k
nc
a

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
gm
4.0
1.75
310
210
-6.9
63
14
8.5

 

Absolute Maximum Operating Conditions
Beam Tetrode
Pdriv
Pout
freq
f.max
1.0W
73W
20MHz
60MHz
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated November 09, 2024.
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