PWHT04 300V @ 320mA, 6.3V @ 3A


10% discount on orders of 2 or more

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

300V 320mA, 6.3V 3A CT Secondary

Primarily intended for use with bridge rectifiers.

Earn up to 85 Points.

10% off with 2 or more transformers


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


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


HT winding 300V at 320mA DC
Heater winding 6.3V at 3A 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.

Connecting wire – stand up only

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




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

Additional information

Weight 2.07 kg
Mounting type

Frame, Stand up, Drop through


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


Shroud With Feet Drawing Key

Label Description Dimension (mm)
A Width 79
B Height 98
C Depth 86
D Mounting depth 51
E Mounting width 64
F Hole width 5

Frame Drawing Key

Label Description Dimension (mm)
A Width 83
B Height 98
C Depth 60
D Mounting height 64
E Mounting width 64
F Mounting depth 48
G Overall depth 70
H Mounting hole width 5

Drop through Drawing Key

Label Description Dimension (mm)
A Width 79
B Length 95
C Height 60
D Cutout width 64
E Cutout length 67
F Fixing length 79
G Fixing width 64
H Mounting hole diameter 4.1



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