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VT-no.206


G8LSD Valve Collection
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Sensibly equivalent to:- VU120 - SU2150A
 
 
 
This exhibit was last updated on 27 December 2011

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The VT-No.206 (VT206 on the envelope) is the UK GPO designation for the VU120.
The maximum reservoir capacitor is 0.25 µF, and the minimum series resistance is 10 kOhms.
The anode cylinder is held in glass supports and connected to the top cap.
The cathode is held in place with two supports in parallel to the top mica. The anode is made of very thin sheet that is folded and shaped into a cylinder with side fixing flanges.
The classic envelope is 47 mm in diameter at its widest and excluding the B4 base pins the valve is 111 mm high.
References: Private communication.
 
Pin Connections
B4
1
2
3
4
tc
-
-
h,k
h
a
 
Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
2.0
1.5
5000
10