POWER TRANSFORMERS
FOR TUBE AMPLIFIERS
CAUTION! HIGH VOLTAGE!
Observe safety precautions when working with high voltage!
Each transformer passes primary heat treatment in a current of 24 hours in thermocases and vacuum impregnation by a varnish in primary sort.
Standard multi-coloured outputs of transformers (length 15 - 20 cm)
can be used directly in point-to-point application.
We offer power transformers potted into black boxes of black colour (powder colouring) or not potted.
Manufacturing of power transformers under the individual technical specification is possible.
"Golden Middle" reserves the right to make changes in products
not affecting the basic technical characteristics.
All transformers have a limited warranty according technical specifications
during 12 months from the date of receiving.
PPT - POPH - 200 / 400
PT - POPH - 200 / 400
potted into black box not potted
TECHNICAL SPECIFICATIONS :
Toroidal core
Case dimensions : 130 mm x 130 mm x H 80 mm
The adjusting sizes : 4 õ M4 100 mm õ 100 mm
The maximum target capacity 200 W
Primary 220 V
Screen winding
Secondary :
1 - 200 V 0,2 A
2 - 200 V 0,2 A
3 - 200 V 0,2 À
4 - 200 V 0,2 A
5 - 6,3 V 2 A
6 - 6,3 V 2 A
7 - 6,3 V 1 A
8 - 6,3 V 1 A
9 - 5 V 3 A
Recomended for tube amplifiers "8888 AMP",
"6588 AMP"
Transformer circuit diagram 
PPT - POT - 50 / 300
PT - POT - 50 / 300
potted into black box not potted
TECHNICAL SPECIFICATIONS :
Toroidal core
Dimensions : diameter 85 mm, height 35 mm
Case dimensions : 90 mm x 90 mm x H 60 mm (for the potted item)
The adjusting sizes : 4 õ Ì3 75 mm õ 75 mm (for the potted item)
The maximum target capacity : 50 W
Primary 220 V
Screen winding
Secondary :
1 - 150 V 0,1 A
2 - 150 V 0,1 A
3 - 9 V 1 A
4 - 9 V 1 A
It is recommended to use in preamp phono-stage "RIAALIGHT"
Transformer circuit diagram
PPT - POT - 100 / 350
PT - POT - 100 / 350
potted into black box not potted
TECHNICAL SPECIFICATIONS :
Toroidal core
Dimensions : diameter 85 mm, height 55 mm
Case dimensions : 95 mm x 95 mm x H 70 mm (for the potted item)
The adjusting sizes : 4 õ M3 80 mm õ 80 mm (for the potted item)
The maximum target capacity : 100 W
Primary 220 V
Screen winding
Secondary :
1 - 310 V 0,15 A
2 - 60 V 0,15 A
3 - 8,5 V 2 A
4 - 8,5 V 2 A
Transformer circuit diagram
PPT - HT - 40 / 5 / 6
potted into black box
TECHNICAL SPECIFICATIONS :
EI core
Case dimensions : 75 mm x 85 mm x H 95 mm
The adjusting sizes : 4 õ M3 55 mm õ 65 mm
The maximum target capacity : 40 W
Primary 220 V
Screen winding
Secondary :
5 V 2 A - 2 pcs
6 V 2 A - 2 pcs
Transformer circuit diagram
PPT - HT - 40 / 6 / 6
potted into black box
TECHNICAL SPECIFICATIONS :
EI core
Case dimensions : 75 mm x 85 mm x H 95 mm
The adjusting sizes : 4 õ M3 55 mm õ 65 mm
The maximum target capacity : 40 W
Primary 220 V
Screen winding
Secondary :
6 V 2 A - 4 pcs
Transformer circuit diagram
PPT - PPH - 100 / 450
potted into black box
TECHNICAL SPECIFICATIONS :
EI laminated core
Case dimensions : 105 mm x 95 mm x H 100 mm
The adjusting sizes : 4 õ M3 75 mm õ 85 mm
The maximum target capacity : 100 W
Primary 220 V
Screen winding
Secondary :
390 V - 410 V 0,1 A
390 V - 410 V 0,1 A
5 V 3 A
6 V 1,5 A
6 V 1,8 A
6 V 1,8 A
Transformer circuit diagram
