▼ Menu

R19

Sensibly equivalent to:
1X2B CV5427
See also:
Brimar TV Valves Advert
    
Extras ▼

 

The R19 is an EHT rectifier for television service. The anode voltage quoted is the peak inverse voltage and this is important in a television EHT generator as the waveform is pulsed and not a sine wave.
The R12 has a higher specification than the 1X2B and can be used as a direct substitute for the 1X2B.
The filament screen can be seen below the anode as a circular plate with a central hole for the filament.
The thin glass tube envelope is 20 mm in diameter, and excluding the B9A base pins is 62 mm tall.
References: Datasheet & 1040.

 

Pin Connections
B9A
1
2
3
4
5
6
7
8
9
tc
s
f
-
s
f
s
-
f
f
a

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
1.25
0.2
25,000
2.0
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated July 31, 2012.
Return to Main Index