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6P25

Sensibly equivalent to:
CV1853
See also:
Valves and their Habits
    
Extras ▼

 

The 6P25 is an output valve, for frame timebase or audio. The electrodes are obscured by the coating on the glass. The 6P25 is pin compatible with the KT61 etc.
The identification is etched into the dome of the envelope.
The classic envelope is 45 mm in diameter and, excluding the IO base pins, is 107 mm tall.
Reference: 1040. Type 6P25 was first introduced in 1948.

 

Pin Connections
IO
1
2
3
4
5
6
7
8
m
h
a
g2
g1
-
h
k

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
ra
gm
rk
rl
Pout
D
6.3
1.1
250
250
-8.5
40.0
8.0
40,000
8.8
180
5,000
4.5
7%
Updated May 10, 2016.
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