3500 Ohm Single ended 10W Output transformer (KT88 or similar)


An excellent single ended output transformer for any valve requiring 3500 Ohm anode load.

10% discount on 2 or more


A high quality 10W Single ended output transformer. May be used in any single ended design with a valve having an output impedance of 3500 Ohms, such as a KT88.


90mA DC current
Multi section winding, for reduced leakage inductance.


Inductance 24H at 25Hz.
Leakage inductance 15mH


Wide bandwidth, 20-30KHz. (-1dB)


Output impedance 4,8 and 16 Ohms.


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.
Layer wound for excellent wind consistency and alignment resulting in reduced leakage inductance.

Connecting wire – stand up only

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


Available in Frame, Drop through or stand up versions.

Additional information

Weight N/A
Mounting Type

Stand up, Drop through, Frame


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 64
B Height 78
C Depth 83
D Mounting depth 57
E Mounting width 48
F Hole width 5

Drop through Drawing Key

Label Description Dimension (mm)
A Width 64
B Length 76
C Height 60
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 67
D Mounting height 54
E Mounting width 54
F Mounting depth 54
G Overall depth 70
H Mounting hole width 5


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