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SP42

Sensibly equivalent to:
ARP20 CV1336 NR79
See also:
Mazda SP41 & SP42 Advert
    
Extras ▼

 

The SP42 is an HF pentode for use in the video output stage in early television receivers.
Thanks to Leif Ekornrxd (LA9IM) for the picture. Click here for Leif's site.
The classic envelope is 32 mm in diameter, and excluding the MO base pins is 76 mm tall.
References: Datasheet, 1040 & 1043. Type SP42 was first introduced in 1938.

 

Pin Connections
MO
1
2
3
4
5
6
7
8
tc
h
k
a
g2
g3
m
-
h
g1

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
gm
4.0
0.95
200
200
-1.5
20.0
5.0
9.0
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated February 20, 2013.
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