1140 Studio Grade Audio Matching Transformers

Hammond Manufacturing 1140 Studio Grade Audio Matching Transformers provide superior performance with low distortion and low phase shifting. This performance allows for a frequency response of 20Hz to 20kHz ±0.35dB, (ref. @ 1kHz). Hammond 1140 series is designed with nickel alloy cores for high performance and wide bandwidth.

Results: 18
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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Termination Style
Frequency Range
Primary Impedance
Secondary Impedance
Number of Channels
Application
Length
Width
Height
Series
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line input, chassis mount, impedance ratio 10k to 10k
Datasheet
2In Stock
3Expected 02/07/2026
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 12 kOhms 2.1 kOhms Single Balancing Input Stages on High Impedance Input 2.25 in 1.069 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line output, chassis mount, impedance ratio 600 to 600
Datasheet
3In Stock
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 710 kOhms 115 Ohms Single Designed with Bi-filar Windings Gives Low Distortion Levels and Good Output Levels 2.063 in 1.063 in 1.19 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line output, chassis mount, impedance ratio 600 to 600
Datasheet
20In Stock
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 680 Ohms 80 Ohms Single Designed with Bi-filar Windings Gives Low Distortion Levels and Good Output Levels 2.375 in 1.19 in 1.38 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, mic input, chassis mount, impedance ratio 150 to 15K
Datasheet
12In Stock
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 20 Hz to 20 kHz 1.3 kOhms 12.5 Ohms Single Input Stage on Vacuum Tube or FET Style Amplifiers 2.25 in 1.069 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, direct box, chassis mount, impedance ratio 200K to 1.5K
Datasheet
10In Stock
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 200 kOhms 1.5 kOhms Single Balanced Microphone Output, Ideal for Feeding Long Cables 2.25 in 1.069 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line input, chassis mount, impedance ratio 10k to 20k
Datasheet
6In Stock
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 12 kOhms 4.1 kOhms Balancing Input Stages on Vacuum Tubes 2.25 in 1.069 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line input, chassis mount, impedance ratio 36K to 2.2K
Datasheet
4In Stock
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 38.5 kOhms 110 Ohms Single Balanced Bridging Input Stages 2.25 in 1.732 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line output, chassis mount, impedance ratio 10K to 600
Datasheet
2In Stock
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 11.5 kOhms 100 Ohms Single High Performance Tube Line Output Stages 2.809 in 1.69 in 1.653 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line output, chassis mount, impedance ratio 600 to 600
Datasheet
7In Stock
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 680 Ohms 80 Ohms Single Designed with Bi-filar Windings Gives Low Distortion Levels and Good Output Levels 2.812 in 1.3 in 1.625 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line output, chassis mount, impedance ratio 600 to 600
Datasheet
1In Stock
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 680 Ohms 80 Ohms Single Designed with Bi-filar Windings Gives Low Distortion Levels and Good Output Levels 3.25 in 1.55 in 1.95 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, mic input, chassis mount, impedance ratio 150 to 3.8K
Datasheet
1In Stock
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 20 Hz to 20 kHz 1.7 kOhms 4.6 kOhms Single Input Stage on Vacuum Tube or FET Style Amplifiers 2.25 in 1.724 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line input, chassis mount, impedance ratio 40K to 2.4K
Datasheet
11Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 42 kOhms 225 Ohms Single High Impedance Inputs 2.25 in 1.069 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line output, chassis mount, impedance ratio 600 to 600
Datasheet
20Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 680 Ohms 80 Ohms Single Designed with Bi-filar Windings Gives Low Distortion Levels and Good Output Levels 2.375 in 1.19 in 1.38 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line output, chassis mount, impedance ratio 600 to 150
Datasheet
9Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 180 Ohms 80 Ohms Single Designed with Quad-filar Windings Gives Low Distortion Levels and Good Output Levels 3.25 in 1.55 in 1.95 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, mic splitter, chassis mount, impedance ratio 150 to 150
Datasheet
27Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 1.03 kOhms 235 Ohms Single Straight Isolation Transformer or Typical 2 Way Splitter Application 2.25 in 1.069 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, mic splitter, chassis mount, impedance ratio 150:150:150
Datasheet
28Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 560 kOhms 220 Ohms Single Straight Isolation Transformer or Typical 3 Way Splitter Application 2.25 in 1.069 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, mic splitter, chassis mount, impedance 150:150:150 :150
Datasheet
17Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 397 Ohms 270 Ohms Single Straight Isolation Transformer or Typical 4 Way Splitter Application 2.25 in 1.732 in 1140
Hammond Manufacturing Audio Transformers / Signal Transformers Audio transformer, line input, chassis mount, impedance ratio 600 to 600
Datasheet
37Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Audio Transformers Wire Lead 800 Ohms 800 Ohms Single Multiple Configurations 1:2, 1:1 or 2:1 2.5 in 1.956 in 1140