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ECL80

Sensibly equivalent to:
63TP 6AB8 LN152
See also:
Valves and their Habits - A Single Valve Gram Unit
    
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The Mazda ECL80 is a triode, output pentode for audio use, it is a low power device with the triode feeding the pentode for a compact single end audio stage.
This valve was made overseas at a time when the image projected was that British made was best.
The triode shares the common cathode and is mounted at right angles to the pentode axis between the top and middle mica discs.
The thin glass tube envelope is 21 mm in diameter and, excluding the B9A base pins, is 59 mm tall.
References: Data-sheet & 1040. Type ECL80 was first introduced in 1950. See also 1950 adverts.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
a(t)
g1(t)
k,s
h
h
a
g3
g2
g1

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
6.3
0.3
200
200
-8
17.5
3.3
25k
5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated December07, 2022.
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