PRE AMP OUTPUT TRANSFORMERS

9041 PP triode to balanced line 5CT:1
15k/600 ohm output transformer for driving a balanced ohm line from push-pull 6SN7, ECC83 etc. 70% Mumetal core for high bandwidth and dynamic range, Max output level at 50 Hz +23 dBu (11 volts). Total dc resistance ref secondary 39 ohms. Termination options (solder tags illustrated). Size j.
Data sheet
Price: £52.81

Package style

9042 AC coupled c/follower to line. 3CT:1
5k/600 ohms output transformer for driving balanced line from ac coupled cathode follower. 70% Mumetal core for high bandwidth and dynamic range, Max output level at 50 Hz +23 dBu (11 volts). Total dc resistance ref secondary 39 ohms. Termination options (solder tags illustrated). Size j.
Data sheet
Price: £52.81

Package style

1160 SE plate to balanced line 15k/150+150
15k/150+150 ohm output transformer for driving a balanced ohm line from single ended triode stage. 100% M6 core for high level capability, Can be configured for 5:1 or 10:1 ratio. Max output level at 30 Hz +26 dBu. Multiple interleaved winding sections. for high bandwidth. Total dc resistance ref secondary 76 ohms. Package options. Size "D"
Data sheet
Price: £82.67

Package style

1161 PP triode to balanced line 20k/150+150
20k/150+150 ohm output transformer for driving a balanced ohm line from push-pull 6SN7, ECC82 ECC83 etc. 100% M6 core for high level capability, Max output level at 30 Hz +37 dBu. Multiple interleaved winding sections. for high bandwidth. Total dc resistance ref secondary 54 ohms. Package options. Size "D"
Data sheet
Price: £82.67

Package style

8650 PP triode to balanced line 9CT:1
15k/185 ohm output transformer for driving a balanced ohm line from push-pull 6SN7, ECC83 etc. 50% Mumetal core for high bandwidth and dynamic range, Max output level at 50 Hz +28 dBu (19 volts). Total dc resistance ref secondary 14 ohms. Colour coded leads. Size A. Tested with Drip Electronics UA 175b PCB .
Data sheet
Price: £69.55

Package style

8650E PP triode to balanced line 9CT:1
15k/185 ohm output transformer for driving a balanced ohm line from push-pull 6SN7, ECC83 etc. 50% Mumetal core for high bandwidth and dynamic range, Max output level at 50 Hz +28 dBu (19 volts). Total dc resistance ref secondary 14 ohms. Colour coded leads. Mumetal can with threaded grommet 45 x 72 x 63 mm. Tested with Drip Electronics Altec 436 PCB.
Data sheet
Price: £97.02

9050 PP triode to balanced line 6CT:1
15k/417 ohm output transformer for driving a balanced ohm line from push-pull 6SN7, ECC83 etc. 50% Mumetal core for high bandwidth and dynamic range, Max output level at 50 Hz +32 dBu (30 volts). Total dc resistance ref secondary 31 ohms. Colour coded leads. Size A.
Data sheet
Price: £70.64

Package style

9900 Push-Pull triode to line output 4:1
10k CT/150+150 ohms Push-Pull output transformer. 100H primary. Up to 45mA dc.per side. Max 5 mA unbalanced permited. Max output +36 dBu . Suitable for Federal AM 864 U compressor. Total dc resistance ref secondary 65 ohms. Colour coded leads. Size D. M6 core. Tested with Drip Electronics UA175 PCB.
Price: £82.67

9040 Single Ended triode to line output 5:1
15k/600 ohms single ended output transformer. 50 H primary. Up to 45 mA dc. Max output +30 dBu (24 volts). Total dc resistance ref secondary 65 ohms. Colour coded leads. Size H. M6 core.
Data sheet
Price: £137.80

9560 Single Ended triode to line output 3.75:1
8k/600 ohms single ended output transformer. 50 H primary. Up to 45 mA dc. Max output +26 dBu (18volts). Total dc resistance ref secondary 93 ohms. Identical primary to 9040 but reduced ratio. Will give greater output with slightly increased output impedance. Reflected anode load may be adjusted by using a secondary load reistance. Colour coded leads. Size H. M6 core.
Data sheet
Price: £121.72

9705 Single Ended triode to line output 4:1
10k/600 ohms single ended output transformer. 40 H primary. Up to 25 mA dc. Max output +24 dBu (12 volts). Total dc resistance ref secondary 96 ohms. Colour coded leads. Size D. M6 core.
Data sheet
Price: £82.67

8347 DAC to grid I/V transformer
For interfacing between Digital/Analogue Converter to tube amplifier. For use with a 25 ohm current to voltage conversion resistor. Mumetal can.
Data sheet
Price: £58.69

Click for PCB pins (£2.60)

9055 Twin DAC to grid I/V transformer
For interfacing from a pair of Digital/Analogue Converters to a tube amplifier. Twin bifilar winding for driving with true and inverted data to give cancellation of unwanted quantisation products. For use with a 50 ohm current to voltage conversion resistor on each DAC. Ratio 1+1:18. Mumetal can.
Data sheet
Price: £65.61

9762 High Performance DAC to grid I/V transformer
For interfacing from a single or multiple parallel Digital/Analogue Converters to a tube amplifier. Will work with most current out DACs with no dc offset. For use with a 200 ohm or higher current-to-voltage conversion resistor. Ratio 1:6.4+6.4. Mumetal can.
Data sheet
Price: £83.37

9545 High Performance Twin DAC to grid I/V transformer
For interfacing from a single or pair of Digital/Analogue Converters to a tube amplifier. Twin bifilar winding for driving with true and inverted data to give cancellation of unwanted quantisation products. Internal electrostatic shields to maximise output balance and noise immunity. Will work with most current out DACs with no dc offset. For use with a 100 ohm or higher current to voltage conversion resistor on each DAC. Ratio 1+1:5+5. Mumetal can.
OCC wire option
Data sheet
Price: £83.37

OCC WIRE (£14.84 price increase)

9111 RAVEN PRE-AMP OUTPUT
High performance 50% mumetal, 50% M6 cored output transformer for parafeed push-pull line amplifier. 4 separate secondary windings. (Ratio of full primary to each secondary is 6.4:1) Full geometric balance enabling various ratios while still getting a fully balanced output. Designed for Raven Pre amp in conjunction with Lynn Olson
Data sheet
Price: £139.60