250V 100mA 6.3V 2A CT HT Valve transformer


10% discount on orders of 2 or more

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

Single 250V 100mA Secondary, suitable for silicon bridge rectifier

6.3V 2A Center tapped heater winding


Earn up to 56 Points.

10% off for 2 or more transformers


A superb quality multipurpose transformer for any valve project or experimentation.
Proudly made in the United Kingdom


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


A single 250V 100mA secondary for use with a silicon rectifier.
Heater winding 6.3V at 2A centre tapped.


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


Separate primary and secondary sections for safety.

Winding wire

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

Connecting wire – stand up only

High quality PVC 600V
Primary and HT : 24AWG UL1015
Secondary LT : 20 AWG UL1015


1Kg for the clamp version


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

Additional information

Weight 0.6 kg
Mounting types

Stand up, Frame, Drop through, Clamp


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 76
B Height 64
C Depth 57
D Core depth 29
E Mounting distance 92
F Hole width 5

Shroud With Feet Drawing Key

Label Description Dimension (mm)
A Width 64
B Height 78
C Depth 70
D Mounting depth 48
E Mounting width 48
F Hole width 5

Drop through Drawing Key

Label Description Dimension (mm)
A Width 64
B Length 76
C Height 48
D Cutout width 58
E Cutout length 61
F Fixing length 64
G Fixing width 51
H Mounting hole diameter 4.1

Frame Drawing Key

Label Description Dimension (mm)
A Width 67
B Height 79
C Depth 54
D Mounting height 54
E Mounting width 54
F Mounting depth 41
G Overall depth 57
H Mounting hole width 5


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