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6SS7

Sensibly equivalent to:
CV1993
See also:
Metal Striptease
    
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The 6SS7 is a variable μ RF pentode. It has a medium gain and was released in the 1940's and listed as obsolete by 1964.
It was designed for HF receiver use where it was applied to RF and IF amplification, but above 15 MHz or so the low gain would tend to impact on receiver noise performance.
The thin metal tube envelope is 25 mm in diameter and, excluding the IO base pins, is 50 mm tall.
References: Datasheet, 1040 & 1043. Type 6SS7 was first introduced in 1940.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.15
250
150
-3
9
2
1M
1.85
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 26, 2013.
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