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SS230SP

Sensibly equivalent to:
PM252
See also:
Six Sixty SS220P Box - The Azide Process
    
Extras ▼

 

The SS230SP from Six Sixty is in fact a Mullard PM252 and it is a battery audio output triode.
The horizontal electrodes. A clearer view can be found on exhibit SS230SP.
The balloon envelope is 45 mm in diameter, and excluding the B4 base pins is 92 mm tall.
References: Datasheet & 1043. Type SS230SP was first introduced in 1929.

 

Pin Connections
B4
1
2
3
4
a
g1
f
f

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
μ
2.0
0.4
150
-12
17.0
1,900
3.7
7.0
Thanks to Andy Cowley for supplying the above PDF datasheet.
Updated October 20, 2014.
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