Small 250V 40mA 6.3V 1.5A CT HT Valve transformer


10% discount on orders of 2 or more

European primary voltage selection: 220V, 230V, 240V and 250V

Single 250V 50mA Secondary, suitable for silicon bridge rectifier

6.3V 1.5A Center tapped heater winding


Earn up to 44 Points.

10% off for 2 transformers


A superb quality mains transformer for any valve project.
Proudly made in the United Kingdom


European primary voltages, 220V, 230V, 240V and 250V.


250V at 40mA for use with a silicon rectifier
Heater winding 6.3V at 1.5A centre tapped.


High quality Grain Orientated M6 0.35mm.
Hand laminated for the best stacking factor, and accuracy.

Winding wire

Double coated Grade 2 enamelled copper wire.
Wound using CNC winders for highly accurate wire placement and turns count.


Solder terminals




Built and tested to safety standard BS EN 61558-1 2005

Additional information

Weight 0.6 kg
Mounting type

Clamp, Stand up, Drop through


Here are dimensional diagrams for this choke.
Please refer to the relevant key below for the dimensions.


Clamp Drawing Key

Label Description Dimension (mm)
A Width 67
B Height 56
C Depth 49
D Core depth 22
E Mounting distance 83
F Hole width 5

Shroud With Feet Drawing Key

Label Description Dimension (mm)
A Width 56
B Height 68
C Depth 60
D Mounting depth 38
E Mounting width 44
F Hole width 5

Drop through Drawing Key

Label Description Dimension (mm)
A Width 56
B Length 67
C Height 41
D Cutout width 39
E Cutout length 51
F Fixing length 56
G Fixing width 44
H Mounting hole diameter 4


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