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: $198.68
1In Stock

Mfr. Part No.
1650G

Mouser Part No
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

$198.68

$189.17

$188.58

$188.08

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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: $383.13
2In Stock

Mfr. Part No.
1650PAP

Mouser Part No
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

$383.13

$340.00

$339.39

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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: $68.02
4Expected 2026/02/26

Mfr. Part No.
125A

Mouser Part No
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

$68.02

$59.77

$57.64

$55.79

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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: $156.20
4Expected 2026/02/23

Mfr. Part No.
1608A

Mouser Part No
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

$156.20

$144.00

$139.63

$136.19

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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 Output transformer, push-pull, 120W , primary 1,900 ct, 403 ma., secondary 4-8-16

1650TA
Hammond Manufacturing
1: $280.63
2Expected 2026/02/18

Mfr. Part No.
1650TA

Mouser Part No
546-1650TA

Hammond Manufacturing

Audio Transformers / Signal Transformers Output transformer, push-pull, 120W , primary 1,900 ct, 403 ma., secondary 4-8-16

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Datasheet

2Expected 2026/02/18

$280.63

$253.78

$245.74

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

4.5 in x 3.75 in x 4.56 in

4.5 in

3.75 in

4.56 in

1608A-1650A Series

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

124C
Hammond Manufacturing
1: $38.08
13Factory Stock Available

Mfr. Part No.
124C

Mouser Part No
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

$38.08

$35.89

$34.05

$32.92

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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: $82.97
46Factory Stock Available

Mfr. Part No.
124E

Mouser Part No
546-124E

Hammond Manufacturing

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

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Datasheet

46Factory Stock Available

More Info Available

$82.97

$74.37

$70.28

$68.83

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: $68.07
9Factory Stock Available

Mfr. Part No.
125J

Mouser Part No
546-125J

Hammond Manufacturing

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

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Datasheet

9Factory Stock Available

More Info Available

$68.07

$60.00

$57.87

$56.03

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: $117.11
9Factory Stock Available

Mfr. Part No.
126C

Mouser Part No
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

$117.11

$112.94

$112.08

$111.26

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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: $222.62
28Factory Stock Available

Mfr. Part No.
1645A

Mouser Part No
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

$222.62

$200.49

$192.92

$190.03

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, 50W , primary 3,400 ct, 318 ma., secondary 4-8-16

1650KA
Hammond Manufacturing
1: $231.25
27Factory Stock Available

Mfr. Part No.
1650KA

Mouser Part No
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

$231.25

$207.75

$198.98

$196.36

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: $566.43
5Factory Stock Available

Mfr. Part No.
1650WA

Mouser Part No
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

$566.43

$536.19

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: $84.36
6Factory Stock Available

Mfr. Part No.
124F

Mouser Part No
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

$84.36

$83.19

$80.36

$79.81

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: $121.98
10Factory Stock Available

Mfr. Part No.
126B

Mouser Part No
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

$121.98

$116.18

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: $169.19
18Factory Stock Available

Mfr. Part No.
1615A

Mouser Part No
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

$169.19

$155.55

$151.28

$146.62

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: $177.17
1Factory Stock Available

Mfr. Part No.
1616

Mouser Part No
546-1616

Hammond Manufacturing

Audio Transformers / Signal Transformers HIFI AUDIO OUTPUT

Learn More

Datasheet

1Factory Stock Available

More Info Available

$177.17

$166.05

$162.80

$161.05

View

Min.: 1
Mult.: 1

1608A-1650A Series

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

1650KP
Hammond Manufacturing
1: $310.75
Non-Stocked

Mfr. Part No.
1650KP

Mouser Part No
546-1650KP

Hammond Manufacturing

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

Datasheet

Non-Stocked

$310.75

$305.94

$299.53

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

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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