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ACV/P1

Sensibly equivalent to:
A50M AC/VP1 CV518 MVSPen VP4A VP4 VPT4B
See also:
Murphy Radio
    
Extras ▼

 

The ACV/P1, AC/VP1 is also given in the literature as ACVP1 as Mazda write the Type designation of this vari-μ amplifier pentode in both ways. The AC/VP1 appearing on the earlier version with the screw top cap.
The zinc paint is starting to flake off revealing that the envelope has an internal coating on the glass.
The top screen above the mica. The top cap connects to the anode.
The classic envelope is 39 mm in diameter, and excluding the B7 base pins is 107 mm tall.
References: 1040 & 1043. Type ACV/P1 was first introduced in 1934.

 

Pin Connections
B7
1
2
3
4
5
6
7
tc
m
g1
g3
h
h
k
g2
a

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
4.0
0.65
250
250
-2.8
8.8
2.2
1M
2.0
Updated March 05, 2018.
shape:classic construction:pinch type:pentode age:1930.1940 base:b7 heater:4.0v pins:7 pin:1.m pin:2.g1 pin:3.g3 pin:4.h pin:5.h pin:6.k pin:7.g2 pin:tc.a
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