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ECC88

Sensibly equivalent to:
6DJ8 CV5358 M3624
    
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The ECC88 is a VHF double triode with separate cathodes. The ECC88 was designed for service as a cascode amplifier in the front ends of VHF radio receivers. One triode acted as the local oscillator and the other as the mixer (frequency changer).
The original Mullard logo, BVA and British Made.
The triode anodes are built like the PC97.
One triode face view showing the anode with the recessed working area.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 49 mm tall.
References: Data-sheet & 1040. Type ECC88 was first introduced in 1958.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
a(2)
g1(2)
k(2)
h
h
a(1)
g1(1)
k(1)
s

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
gm
6.3
0.365
90
-1.3
15.0
12.5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated July 14, 2020.
shape:thin.glass.tube construction:all.glass type:double.triode age:1950.1960 base:b9a heater:6.3v pins:9 pin:1.a pin:2.g1 pin:3.k pin:4.h pin:5.h pin:6.a pin:7.g1 pin:8.k pin:9.s
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