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210VPT

Sensibly equivalent to:
ARP13 CV171 CV1083 CV1332 K50M NR41 VP21 VP210 VP2 VPT2 VR83
See also:
CV1083 short entry - CV171 short entry
    
Extras ▼

 

The 210VPT is a variable-mu amplifier HF pentode dating from the early 1930s. The design use is as an HF or IF voltage amplifier in AGC controlled battery superhet radio receivers.
In this example the identification is within a paper label and the top cap is of the Bakelite and screw top variety. Thus this dates to the early 1930s. Later 210VPTs had the identification printed onto the zinc paint and the top hat top cap connection.
The rest of the envelope is plain zinc paint coated.
The classic envelope is 44 mm in diameter and, excluding the B7 base pins, is 108 mm tall.
References: Datasheet & 1043. Type 210VPT was first introduced in 1934.

 

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

 

Absolute Maximum Operating Conditions
Pentode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
2.0
0.1
150
80
0
2.9
0.75
0.6M
1.1
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated November 20, 2016.
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