CLASSIC AMPS

Output transformer for HiFi World amplifier designed by Andy Grove. 30W at 20 Hz. 10 Hz to 80 kHz bandwidth bifilar wound. Primary Inductance 150 mH. DC resistance 0.75 Ohms. Primary dc standing current 2.0 A max. . Suitable for 4 or 8 Ohm speakers. Size "N". Weight 4.9 Kg.

Output transformer for upgrade or replacement of Soldano overdrive lead guitar amp. Exceptional harmonic response achieved by winding technique developed jointly by Dr N Partridge and Dr G A V Sowter. 2200 Ohms primary. Secondary oprions. Bandwidth 20 Hz to 100 KHZ. Overload point 100W at 50 Hz. Size "N". Weight 4.9 Kg.

Output transformer for upgrade or replacement for Marshall DSL-50. Fully balanced multi section winding gives improved bandwidth and low frequency performance. Greatly improved harmonic response. 6000 Ohms to 16/8/4 Ohms or other secondary configuration options. 50W at 50 Hz 150 mA. Size "K". Drop-through style "T" fits original chassis with minor modification. Other package options.

5K Ohms with 43% UL taps to 16/8/4 Ohms. 25W at 30 Hz 14 separate winding sections for very wide bandwidth and two chamber bobbin for full geometric balance. Style options. Size J. Ship weight 2.1 kg

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. A much more generously specified transformer with larger dimensions than the original. Needs more space on the chassis. Style options. Size N. Ship weight 4.9 kg

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

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

3H at 250 mA 17 ohms. Size I. Open frame style O

10H at 250 mA 90 ohms. Size J. Open frame style O

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.

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.

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.

8000 ohms to 4/8/16 ohms. 20 W at 20 Hz. 43% UL taps. Suitable for UL84, 6BQ5, N709, V4R Conservatively designed for improved sound quality. Check dimensions. Size N

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.

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.

20 H 20 mA Open frame style. Size A. Ship weight 0.65 kg

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

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.

30 H 40 mA Open frame style. Size A. Ship weight 0.65 kg

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.

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

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

8000ohms to 16/8/4 ohms. 43% UL taps. 10W at 20 Hz. 14 separate winding sections for very wide bandwidth and two chamber bobbin for full geometric balance. Primary 90H 210 Ohms. Choice of package style and secondary impedance. Size J. Ship weight 2.1 kg

3.1+3.1:1 ratio. For use with push-pull transistor circuit.published in 1961 T2. Replacement for Colne 06006. Suitable for the KAT Knight Audio Deacy style amplifier.

3.5:1+1 ratio. For use with push-pull transistor circuit.published in 1961 T1. Replacement for Colne 06005. Suitable for the KAT Knight Audio Deacy style amplifier.

4 + 4 Quad-Filar windings Designed for this excellent fully balanced MOSFET design with no overall negative feedback. Size N

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

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.

Replacement for original transformer using modern materials. 2800/200/500 turns per original spec. Available with leads, tags or PCB pins. Dimensions 37.5 x 33 x 45.5 mm. Fixing holes 55 mm centres.