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Page 1: Neve Carnhill

Carnhill Transformers

Design Guide - Issue 1

Page 2: Neve Carnhill

Tel/Fax +44 (0)161 654 0748Email: [email protected]

Audio Maintenance Limited, Unit 10 Hanson Close Industrial Estate, Middleton, Manchester. M24 United Kingdom.

VTB 1148 - High Level Output Transformer[for Professional Audio Applications]

A high performance, no

compromise, professional audio

signal transformer primarily

intended for high level balanced line

output applications

Page 3: Neve Carnhill

Tel/Fax +44 (0)161 654 0748Email: [email protected]

Audio Maintenance Limited, Unit 10 Hanson Close Industrial Estate, Middleton, Manchester. M24 United Kingdom.

VTB 1847 - High Level Output Transformer[for Professional Audio Applications]

A high performance, no

compromise, professional audio

signal transformer primarily

intended for high level balanced line

output applications

Page 4: Neve Carnhill

Tel/Fax +44 (0)161 654 0748Email: [email protected]

Audio Maintenance Limited, Unit 10 Hanson Close Industrial Estate, Middleton, Manchester. M24 United Kingdom.

VTB 9045 - Low Level Audio Signal Transformer[for Professional Audio Applications]

A high performance, no

compromise, professional audio

signal transformer primarily

intended for low level microphone

input applications

Page 5: Neve Carnhill

Tel/Fax +44 (0)161 654 0748Email: [email protected]

Audio Maintenance Limited, Unit 10 Hanson Close Industrial Estate, Middleton, Manchester. M24 United Kingdom.

VTB 9046 - High Level Audio Signal Transformer[for Professional Audio Applications]

A high performance, no

compromise, professional audio

signal transformer primarily

intended for low level microphone

input applications

Page 6: Neve Carnhill

Tel/Fax +44 (0)161 654 0748Email: [email protected]

Audio Maintenance Limited, Unit 10 Hanson Close Industrial Estate, Middleton, Manchester. M24 United Kingdom.

VTB 9049 - High Level Output Transformer[for Professional Audio Applications]

A high performance, no

compromise, professional audio

signal transformer primarily

intended for high level balanced line

output applications

Page 7: Neve Carnhill

Tel/Fax +44 (0)161 654 0748

Audio Maintenance Limited, Unit 10 Hanson Close Industrial Estate, Middleton, Manchester. M24 United Kingdom.

VTB 9056 - High Level Output Transformer[for Professional Audio Applications]

A high performance, no

compromise, professional audio

signal transformer primarily

intended for high level balanced line

output applications

Page 8: Neve Carnhill

Tel/Fax +44 (0)161 654 0748Email: [email protected]

Audio Maintenance Limited, Unit 10 Hanson Close Industrial Estate, Middleton, Manchester. M24 United Kingdom.

VTB 9057 - High Level Output Transformer[for Professional Audio Applications]

A high performance, no

compromise, professional audio

signal transformer primarily

intended for high level balanced line

output applications

Page 9: Neve Carnhill

Underside view

Underside view

Underside view

A

CF

A

A: 1.3H

B: 50mH

A: 100mH

B

B

B

B: 3.0H

C: 80mH

B: 160mH

S

S

S

- Coil Start

- Coil Start

- Coil Start

S

S

S

G

G

G

H

G - Earth

G - Earth

G - Earth

Inductance values shownare measuredwith respect to coil start (S) at 1kHz

Inductance values are +/- 10%

Inductance values shownare measuredwith respect to coil start (S) at 1kHz

Inductance values are +/- 10%

Inductance values shownare measuredwith respect to coil start (S) at 1kHz

Inductance values are +/- 10%

E

E

F

E

E: 10.0H

E: 160mH

F: 200mH

E: 450mH

H: 2.0H

D

D

D

D: 7.0H

D: 100mH

D: 220mH

F: 1.0H

VTB9043

VTB9044

VTB9050

Page 10: Neve Carnhill

Underside view

Underside view

C

C

A: 67mH

A: 450mH

B

B

B: 95mH

B: 670mH

A

A

S

S

- Coil Start

- Coil Start

S

S

Inductance values shownare measuredwith respect to coil start (S) at 1kHz

Inductance values are +/- 10%

Inductance values shownare measuredwith respect to coil start (S) at 1kHz

Inductance values are +/- 10%

E

E

D: 193mH

D: 1.3H

E: 287mH

E: 1.93H

D

D

C: 129mH

C: 950mH

VTB9054

VTB9055

Page 11: Neve Carnhill

Underside view

Underside view

C

C

A: 1.4H

A: 200mH

B

B

B: 2.1H

B: 300mH

A

A

S

S

Coil start is

indicated by

dot on

upper side

Coil start is

indicated by

dot on

upper side

- Coil Start

- Coil Start

S

S

Inductance values shownare measuredwith respect to coil start (S) at 1kHz

Inductance values are +/- 10%

Inductance values shownare measuredwith respect to coil start (S) at 1kHz

Inductance values are +/- 10%

D: 5.1H

D: 760mH

D

D

C: 3.5H

C: 500mH

VTB9047

VTB9048