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6F6G

Sensibly equivalent to:
ARP17 CV1186 CV1911 KT63 NR85
See also:
CV1186 short entry
    
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The 6F6G output pentode was designed for audio amplification in radio receivers. The operating values given are for single ended use with an anode load of 7,000 Ohms.
If a pair are used as an audio amplifier in push pull class A, 10.5 Watts are possible with 3% distortion.
The equivalent type KT63 is a beam tetrode. Type 42E is electrically the same but with a UX6 base. Additionally the 7D5 is a 6F6G with a 0.315 Amp 13 Volt heater and a B7 Base cap.
The classic envelope is 42 mm in diameter and excluding the IO base pins the length is 95 mm.
References: Datasheet, 1040 & 1043. Type 6F6G was first introduced in 1936.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
D
6.3
0.7
285
285
-20
38
7
78k
2.55
4.5W
9%
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 12, 2017.
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