Audio Transformers / Signal Transformers

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Classic Audio Transformers

Hammond Manufacturing Classic Audio Transformers feature high-quality magnetics for tube applications such as high-fidelity (hi-fi) audio and guitar amplifiers. Hammond delivers proven expertise and experience in the design and manufacturing of these products. The portfolio includes a variety of transformers, including high and low voltage, single-ended and push-pull tube audio output, modulation, and more.

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Part #

Audio Transformers / Signal Transformers Output transformer, push-pull, 35W , primary 6,600 ct, 200 ma., secondary 3.5/8/16/250/500

1650G
Hammond Manufacturing
1: $260.63
1In Stock

Mfr. Part #
1650G

Mouser Part #
546-1650G

Hammond Manufacturing

Audio Transformers / Signal Transformers Output transformer, push-pull, 35W , primary 6,600 ct, 200 ma., secondary 3.5/8/16/250/500

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Datasheet

1In Stock

$260.63

$249.25

$248.69

$248.19

View

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Wire Lead

30 Hz to 30 kHz

6.6 kOhms

16 Ohms

Tube Output Push Pull

3.13 in

3.75 in

3.81 in

1608A-1650A Series

Audio Transformers / Signal Transformers Tube output transformer, push-pull, Hi-Fi, potted, 60 watts, 6600 ohms

1650PAP
Hammond Manufacturing
1: $498.38
2In Stock

Mfr. Part #
1650PAP

Mouser Part #
546-1650PAP

Hammond Manufacturing

Audio Transformers / Signal Transformers Tube output transformer, push-pull, Hi-Fi, potted, 60 watts, 6600 ohms

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Datasheet

2In Stock

$498.38

$440.97

$439.16

View

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Terminals

30 Hz to 30 kHz

6.6 kOhms

16 Ohms

Single

Tube Output Push Pull

3.13 in

4.25 in

3.81 in

1650P Series

Audio Transformers / Signal Transformers Audio transformer, universal push-pull tube output, 3 watts

125A
Hammond Manufacturing
1: $89.24
4Expected 2026-02-26

Mfr. Part #
125A

Mouser Part #
546-125A

Hammond Manufacturing

Audio Transformers / Signal Transformers Audio transformer, universal push-pull tube output, 3 watts

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Datasheet

4Expected 2026-02-26

$89.24

$78.41

$75.61

$73.19

View

Min.: 1
Mult.: 1

Audio Transformers

Push-Pull

Terminals

150 Hz to 15 kHz

14.94 H

25 kOhms

15 Ohms

Single

Tube Output Push Pull

2.06 in

1.25 in

1.19 in

125A-125E Series

Audio Transformers / Signal Transformers Output transformer, push-pull, 10W , primary 8,000 ct, 100 ma., secondary 4-8-16

1608A
Hammond Manufacturing
1: $205.32
4Expected 2026-02-23

Mfr. Part #
1608A

Mouser Part #
546-1608A

Hammond Manufacturing

Audio Transformers / Signal Transformers Output transformer, push-pull, 10W , primary 8,000 ct, 100 ma., secondary 4-8-16

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Datasheet

4Expected 2026-02-23

$205.32

$189.79

$184.20

$179.03

View

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Wire Lead

30 Hz to 30 kHz

8 kOhms

4 Ohms, 8 Ohms, 16 Ohms

Single

Tube Output Push Pull

2.5 in

2.75 in

3.06 in

1608A-1650A Series

Audio Transformers / Signal Transformers Transformer, tube driver, interstage, 5 watts, for push-pull circuits

124C
Hammond Manufacturing
1: $49.95
13Factory Stock Available

Mfr. Part #
124C

Mouser Part #
546-124C

Hammond Manufacturing

Audio Transformers / Signal Transformers Transformer, tube driver, interstage, 5 watts, for push-pull circuits

Learn More

Datasheet

13Factory Stock Available

More Info Available

$49.95

$47.09

$44.68

$43.19

View

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Terminals

150 kHz to 15 kHz

10 kOhms

90 kOhms

Single

Tube Driver

124 Series

Audio Transformers / Signal Transformers Transformer, tube driver, interstage, 5 watts, for push-pull circuits

124E
Hammond Manufacturing
1: $108.85
46Factory Stock Available

Mfr. Part #
124E

Mouser Part #
546-124E

Hammond Manufacturing

Audio Transformers / Signal Transformers Transformer, tube driver, interstage, 5 watts, for push-pull circuits

Learn More

Datasheet

46Factory Stock Available

More Info Available

$108.85

$97.58

$92.21

$90.30

View

Min.: 1
Mult.: 1

Tube Application Power Transformers

Terminals

150 kHz to 15 kHz

32 H

15 kOhms

33.8 kOhms, 135 kOhms

Tube Driver

2.88 in x 1.7 in x 2.37 in

2.37 in

1.74 in

2.88 in

124 Series

Audio Transformers / Signal Transformers Audio transformer, universal single ended or push-pull tube output, 8 watts

125J
Hammond Manufacturing
1: $89.31
9Factory Stock Available

Mfr. Part #
125J

Mouser Part #
546-125J

Hammond Manufacturing

Audio Transformers / Signal Transformers Audio transformer, universal single ended or push-pull tube output, 8 watts

Learn More

Datasheet

9Factory Stock Available

More Info Available

$89.31

$78.71

$75.92

$73.51

View

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Terminals

150 Hz to 15 kHz

5.6 H

2.5 kOhms, 4 kOhms

8 Ohms, 4 Ohms

Tube Output Push Pull

3.25 in x 1.5 in x 1.94 in

1.94 in

3.25 in

1.5 in

125J Series

Audio Transformers / Signal Transformers Audio transformer, tube driver, interstage, for single ended tube amplifiers

126C
Hammond Manufacturing
1: $153.65
9Factory Stock Available

Mfr. Part #
126C

Mouser Part #
546-126C

Hammond Manufacturing

Audio Transformers / Signal Transformers Audio transformer, tube driver, interstage, for single ended tube amplifiers

Learn More

Datasheet

9Factory Stock Available

More Info Available

$153.65

$148.17

$147.05

$145.98

View

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Wire Lead

20 Hz to 20 kHz

106 H

10 kOhms

Single

Tube Driver Interstage

3.12 in x 2.5 in x 3.12 in

3.12 in

2.5 in

126 Series

Audio Transformers / Signal Transformers Output transformer, push-pull, 30W , primary 5,000 ct, 128 ma., secondary 4-8-16

1645A
Hammond Manufacturing
1: $292.08
28Factory Stock Available

Mfr. Part #
1645A

Mouser Part #
546-1645A

Hammond Manufacturing

Audio Transformers / Signal Transformers Output transformer, push-pull, 30W , primary 5,000 ct, 128 ma., secondary 4-8-16

Learn More

Datasheet

28Factory Stock Available

More Info Available

$292.08

$263.04

$253.11

$249.33

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Wire Lead

30 Hz to 30 kHz

5 kOhms

16 Ohms

Single

Tube Output Push Pull

3.75 in

2.5 in

3.06 in

1608A-1650A Series

Audio Transformers / Signal Transformers Output transformer, push-pull, 40W , primary 6,600 ct, 200 ma., secondary 4-8-16

1650HA
Hammond Manufacturing
1: $289.32
42Factory Stock Available

Mfr. Part #
1650HA

Mouser Part #
546-1650HA

Hammond Manufacturing

Audio Transformers / Signal Transformers Output transformer, push-pull, 40W , primary 6,600 ct, 200 ma., secondary 4-8-16

Learn More

Datasheet

42Factory Stock Available

More Info Available

$289.32

$260.57

$250.24

$246.18

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Wire Lead

30 Hz to 30 kHz

6.6 kOhms

4 Ohms, 8 Ohms, 16 Ohms

Tube Output Push Pull

4 in

3.13 in

3.81 in

1608A-1650A Series

Audio Transformers / Signal Transformers Output transformer, push-pull, 50W , primary 3,400 ct, 318 ma., secondary 4-8-16

1650KA
Hammond Manufacturing
1: $303.36
27Factory Stock Available

Mfr. Part #
1650KA

Mouser Part #
546-1650KA

Hammond Manufacturing

Audio Transformers / Signal Transformers Output transformer, push-pull, 50W , primary 3,400 ct, 318 ma., secondary 4-8-16

Learn More

Datasheet

27Factory Stock Available

More Info Available

$303.36

$272.55

$261.06

$257.62

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Wire Lead

30 Hz to 30 kHz

3.4 kOhms

4 Ohms, 8 Ohms, 16 Ohms

Tube Output Push Pull

1608A-1650A Series

Audio Transformers / Signal Transformers Output transformer, push-pull, 280W , primary 1,900 ct, 806 ma., secondary 4-8-16

1650WA
Hammond Manufacturing
1: $744.95
5Factory Stock Available

Mfr. Part #
1650WA

Mouser Part #
546-1650WA

Hammond Manufacturing

Audio Transformers / Signal Transformers Output transformer, push-pull, 280W , primary 1,900 ct, 806 ma., secondary 4-8-16

Learn More

Datasheet

5Factory Stock Available

More Info Available

$744.95

$703.48

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Wire Lead

30 Hz to 30 kHz

1.9 kOhms

4 Ohms, 8 Ohms, 16 Ohms

Single

Tube Output Push Pull

109.5 mm

111.25 mm

113.35 mm

1608A-1650A Series

Audio Transformers / Signal Transformers Transformer, tube driver, interstage, 5 watts, for push-pull circuits

124F
Hammond Manufacturing
1: $110.69
6Factory Stock Available

Mfr. Part #
124F

Mouser Part #
546-124F

Hammond Manufacturing

Audio Transformers / Signal Transformers Transformer, tube driver, interstage, 5 watts, for push-pull circuits

Learn More

Datasheet

6Factory Stock Available

More Info Available

$110.69

$109.14

$105.44

$104.70

View

Min.: 1
Mult.: 1

Tube Application Power Transformers

124 Series

Audio Transformers / Signal Transformers Audio transformer, tube driver, interstage, for single ended tube amplifiers

126B
Hammond Manufacturing
1: $160.02
10Factory Stock Available

Mfr. Part #
126B

Mouser Part #
546-126B

Hammond Manufacturing

Audio Transformers / Signal Transformers Audio transformer, tube driver, interstage, for single ended tube amplifiers

Learn More

Datasheet

10Factory Stock Available

More Info Available

$160.02

$152.43

Quote

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Terminals

20 Hz to 20 kHz

5 kOhms

Single

Tube Driver Interstage

3.12 in

2.5 in

126 Series

Audio Transformers / Signal Transformers Output transformer, push-pull, 15W , primary 5,000 ct, 100 ma., secondary 4-8-16

1615A
Hammond Manufacturing
1: $221.98
18Factory Stock Available

Mfr. Part #
1615A

Mouser Part #
546-1615A

Hammond Manufacturing

Audio Transformers / Signal Transformers Output transformer, push-pull, 15W , primary 5,000 ct, 100 ma., secondary 4-8-16

Learn More

Datasheet

18Factory Stock Available

More Info Available

$221.98

$204.08

$198.48

$192.37

Quote

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Wire Lead

30 Hz to 30 kHz

5 kOhms

4 Ohms, 8 Ohms, 16 Ohms

Tube Output Push Pull

3.06 in

3.25 in

2.5 in

1608A-1650A Series

Audio Transformers / Signal Transformers HIFI AUDIO OUTPUT

1616
Hammond Manufacturing
1: $232.45
1Factory Stock Available

Mfr. Part #
1616

Mouser Part #
546-1616

Hammond Manufacturing

Audio Transformers / Signal Transformers HIFI AUDIO OUTPUT

Learn More

Datasheet

1Factory Stock Available

More Info Available

$232.45

$217.86

$213.60

$211.29

View

Min.: 1
Mult.: 1

1608A-1650A Series

Audio Transformers / Signal Transformers Push-Pull, Potted Primary 3400 CT, 50W

1650KP
Hammond Manufacturing
1: $407.71
Non-Stocked

Mfr. Part #
1650KP

Mouser Part #
546-1650KP

Hammond Manufacturing

Audio Transformers / Signal Transformers Push-Pull, Potted Primary 3400 CT, 50W

Datasheet

Non-Stocked

$407.71

$401.39

$392.98

View

Min.: 1
Mult.: 1

Tube Application Power Transformers

Push-Pull

Wire Lead

30 Hz to 30 kHz

3.4 kOhms

16 Ohms

Tube Output Push Pull

3.31 in

3.88 in

4.25 in

1650P Series

Classic Audio Transformers

Mouser Electronics®

Company

Resources

Support

1.43 in
1.63 in
1.68 in
1.94 in
2.06 in
2.37 in
2.38 in
2.5 in
2.81 in
3.06 in
3.12 in
3.13 in
3.25 in
3.31 in
3.5 in
3.69 in
3.75 in
3.81 in
4 in
107.95 mm

1.25 in
1.35 in
1.38 in
1.46 in
1.5 in
1.74 in
1.75 in
2 in
2.5 in
2.75 in
2.81 in
3.12 in
3.13 in
3.25 in
95.25 mm
3.75 in
3.88 in
4.25 in
111.25 mm
4.44 in

1.19 in
1.38 in
1.4 in
1.5 in
1.69 in
2 in
2.31 in
2.38 in
2.5 in
2.81 in
2.88 in
3.06 in
3.13 in
3.81 in
4.25 in
113.35 mm
4.5 in
4.56 in
115.82 mm
4.65 in