This service valve is the military version of the PL82.
Incidentally, allocation of a CV type number does not necessarily imply military use. It does imply usage by some British Government or quasi-government organisation (eg. the NHS) and is intended to permit competitive procurement in a market where 'ordinary' type numbers 'belong' to particular manufacturers so that valves bearing such type numbers can only be obtained from a monopoly supplier.
This valve would normally be found in audio stages of television receivers. A pair used in push pull class AB1 would deliver 9 Watts at 4% distortion. The peak to peak grid signal voltage would be 26 Volts and the shared anode load would be 4,000 Ohms.
The anode load was designed to 3,000 Ohms.
The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 69 mm tall.
Absolute Maximum Operating Conditions
Pentode |
Vh |
Ah |
Va |
Vs |
Vg |
mAa |
mAs |
ra |
gm |
Pout |
D |

|
16.5 |
0.3 |
170 |
170 |
-10.4 |
53 |
10 |
20,000 |
9.0 |
4W |
10% |
This exhibit was last updated on 22 January 2002 |
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