E A Sowter Ltd
FULL RANGE OF HIGH QUALITY TRANSFORMERS FOR ALL AUDIO APPLICATIONS

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9195 RADFORD STA25 OUTPUT T20759195 RADFORD STA25 OUTPUT T2075
5K Ohms with 43% UL taps to 16/8/4 Ohms. 25W at 20 Hz 14 separate winding sections for very wide bandwidth and two chamber bobbin for full geometric balance. Style options. Size N. Ship weight 4.9 kg 


Price:   £145.83 

Package style

Secondary option


9156 RADFORD STA15 OUTPUT T2063
8K Ohmswith 43% UL taps to 16/8/4 Ohms. 25W at 20 Hz 14 separate winding sections for very wide bandwidth and two chamber bobbin for full geometric balance. Style options. Size N. Ship weight 4.9 kg 


Price:   £145.83 

9156 RADFORD STA15 OUTPUT T2063
Package style

Secondary option


9342 RADFORD STA15 Series 3 OUTPUT T21429342 RADFORD STA15 Series 3 OUTPUT T2142
7.5K Ohms with 43% UL taps to 16/8/4 Ohms. 25W at 20 Hz 14 separate winding sections for very wide bandwidth and two chamber bobbin for full geometric balance. Style options. Size N. Ship weight 4.9 kg 


Price:   £145.83 

Package style

Secondary option


9196 RADFORD STA25 CHOKE T2165
3H at 250 mA 17 ohms. Size I. Open frame style O 


Price:   £61.51 

9196 RADFORD STA25  CHOKE T2165
Package style


9158 RADFORD STA15  CHOKE T20729158 RADFORD STA15 CHOKE T2072
10H at 250 mA 90 ohms. Size J. Open frame style O 


Price:   £67.23 

Package style


9194 RADFORD STA25 MAINS TRANSFORMER T2093
350 V at 400 mA. 120 V at 50 mA. 6.3 V CT at 4.0 A, 6.3 V CT at 4.0 A, 6.3 v at 2.0 A. Worldwide primary 120,110,100 V ( twin windings) Size P. Style optional. 


Price:   £152.34 

9194 RADFORD STA25  MAINS TRANSFORMER T2093
Package style


9157 RADFORD STA15  MAINS TRANSFORMER T20649157 RADFORD STA15 MAINS TRANSFORMER T2064
350-0-350 V at 250 mA. 6.3 V CT at 4.0 A, 6.3 V CT at 4.0 A, 5 V at 2A. EU Primary Size P. Style optional. 


Price:   £152.34 

Package style


9079 DYNACO Stereo ST70 MAINS TRANSFORMER
360-0-50-360 V at 300 mA. 6.3 V CTat 4.5 A, 6.3 V CT at 4.5 A, 5V at 3A. 120+120 V primary. Style T. Size P. Ship weight 7.0 kg
For Dynaco Output transformers see UA21 and U070. 


Price:   £180.42 

9079  DYNACO Stereo ST70 MAINS TRANSFORMER


8966 QUAD II MAINS TRANSFORMER.  WW Primary8966 QUAD II MAINS TRANSFORMER. WW Primary
WW Primary (Twin 100-110-120 V). 310-0-310 V at 200 mA. 5 V at 2 A. 6.3 V CT at 6 A. Internal Electrical Electrostatic screen for reduction in mains noise. Size N. Fits on chassis but not in original can. 


Price:   £135.00 


8967 QUAD II MAINS TRANSFORMER. EU Primary
EU Primary (240-220-200-0-10 V). 310-0-310 V at 200 mA. 5 V at 2 A. 6.3 V CT at 6 A. Internal Electrical Electrostatic screen for reduction in mains noise. Size N. Fits on chassis but not in original can. 


Price:   £135.00 

8967 QUAD II MAINS TRANSFORMER.  EU Primary


9842 Quad II  CHOKE C19842 Quad II CHOKE C1
20 H 20 mA Open frame style. Size A. Ship weight 0.65 kg 


Price:   £45.88 

Click here for style "S" (£4.42 +VAT)  


8950 WILLIAMSON OUTPUT TRANSFORMER
10Kohms to 16/8/4 ohms. (Our own optimized design). 14 separate winding sections for very wide bandwidth and two chamber bobbin for full geometric balance. Style options. Size P. Ship weight 7.0 kg 
Data sheet

Price:   £180.42 

8950  WILLIAMSON OUTPUT TRANSFORMER
Package style

Secondary option


8951  WILLIAMSON MAINS TRANSFORMER8951 WILLIAMSON MAINS TRANSFORMER
EU Primary. 425-0-425 at 180 mA. 5V at 3A. 6.3V CT at 4A. Package options. Size N, Ship weight 4.9 kg. 


Price:   £142.82 

Package style


8609 WILLIAMSON CHOKE C1
30 H 40 mA Open frame style. Size A. Ship weight 0.65 kg 


Price:   £43.04 

8609 WILLIAMSON CHOKE C1
Click here for style "S" (£4.42 +VAT)  


M071  GEC 100W  MAINS T2M071 GEC 100W MAINS T2
650-0-650 at 325 mA, 6.3 VCTat 5 A, 4 V at 7 A, 75 V at 10 mA. Size Q. Ship weight 8.8 kg
For GEC 100W OUTPUT see: U070 and CHOKES see: CA09, CB25. 


Price:   £207.02 

Package style


8994 ACROSOUND TO350 OUTPUT
6600 ohms to 16/8/4 ohms. 100W at 25 Hz. Separate 43% UL winding. Size P. Ship weight 7.0 kg 


Price:   £196.87 

8994  ACROSOUND TO350 OUTPUT
Package style

Secondary option


9895  MULLARD 7W, ECL82 PP AMP9895 MULLARD 7W, ECL82 PP AMP
9000 ohms to 16/8/4 ohms. 20% UL taps. 7W at 22 Hz. 14 separate winding sections for very wide bandwidth and two chamber bobbin for full geometric balance. Choice of package style and secondary impedance. Size I. Ship weight 1.8 kg 
Schematics pdf

Price:   £92.75 

Package style

Secondary option


9884 MULLARD OC81 AMP OUTPUT
3.1+3.1:1 ratio. For use with push-pull transistor circuit.published in 1961 T2. Replacement for Colne 06006  
Schematics pdf

Price:   £35.75 

9884 MULLARD OC81 AMP OUTPUT
Package style


9882 MULLARD OC81 AMP INTERSTAGE9882 MULLARD OC81 AMP INTERSTAGE
3.5:1+1 ratio. For use with push-pull transistor circuit.published in 1961 T1. Replacement for Colne 06005 
Schematics pdf

Price:   £35.75 

Package style


9840 Zeus Power Amplifier by Susan Parker Output Transformer
4 + 4 Quad-Filar windings Designed for this excellent fully balanced MOSFET design with no overall negative feedback. Size N 
Susan Parker Website

Price:   £145.83 

9840 Zeus Power Amplifier by Susan Parker  Output Transformer


9940 Zeus VMOS Line Driver by Susan Parker  Output Transformer9940 Zeus VMOS Line Driver by Susan Parker Output Transformer
4 + 4 Quad-Filar windings The line driver is intended for use with a separate preamp and a pair of Zeus power amps. Size N 
Susan Parker Website

Price:   £145.83 


8160 Zeus Power Amplifier by Susan Parker Input Transformer
1+1:10+10 Fully geometrically balanced input transformer. Designed for this excellent fully balanced MOSFET design with no overall negative feedback. Size A. U-Clamp mounting. 
Susan Parker Website

Price:   £76.51 

8160 Zeus Power Amplifier by Susan Parker Input Transformer
50% Mumetal core (£20 price adder)  


1055 19 Set T2A Output Transformer1055 19 Set T2A Output Transformer
Replacement for original transformer using modern materials. 2800/200/500 turns per original spec. Avaiolable with leads, tags or PCB pins. Dimensions 37.5 x 33 x 45.5 mm. Fixing holes 55 mm centres. 
Data sheet

Price:   £35.75 

Package style




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