▼ Menu

VR503

Sensibly equivalent to:
CV1503 KT33C
    
Extras ▼

 

This exhibit is a pre-CV service valve. It is designated as an Air Force receiving valve and is a direct equivalent to the commercial KT33C.
The classic envelope is 42 mm in diameter and, excluding the IO base pins, is 100 mm tall.
References: Data-sheet & 1043. Type VR503 was first introduced in 1938. See also 1938 adverts.

 

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

 

Absolute Maximum Operating Conditions
Beam Tetrode
Vh
Ah
Va
Vs
Vg
mAa
mAs
gm
Pout
26
0.3
200
200
-13.2
60
10
10.0
5
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated January 06, 2022.
Return to Main Index