125A Hammond Manufacturing, 125A Datasheet - Page 2

• Manufacturer Part Number: 125A
• Description: TRANSFORMER 3W 25MA TUBE TYPE
• Manufacturer: Hammond Manufacturing
• Series: 125r

Specifications of 125A

• Transformer Type: General Purpose
• Current: 25mA
• Impedance: 12K-25K Primary, 1.5-15 Secondary
• Insertion Loss: ±1dB
• Mounting Type: Chassis Mount
• Frequency Range: 150 Hz to 15 KHz
• Primary Impedance: 25 KOhms
• Secondary Impedance: 15 Ohms
• Termination Style: Solder Lug Terminals
• Dimensions: 2.06 in L x 1.25 in W x 1.19 in H
• Product: Audio Transformers
• Inductance: 14.94 H
• Power Rating: 3 Watts
• Shielding: Unshielded
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

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Red B+
(Plate)
(Plate)
Designed for general purpose or replacement use in push-pull tube output circuits.
Frequency response: 150 Hz. - 15 Khz (+/- 1db max.- ref. 1 Khz).
125H - open style with minimum 5" long primary leads, secondary solder lugs for convenient secondary connections.
125J - open style with minimum 10" long primary & secondary leads.
Brn
Blu
Queenstown, Australia 61-8-8240-2244
PRI
Basingstoke, UK 01256 812812
AUSTRALIA
Part No.
125H
EUROPE
125J
SEC
Push-Pull
125H
Audio
Watts
Lug #1 Common
8
8
Lug #4 8 Ohms
Lug #2 2 Ohms
Lug#3 4 Ohms
"CLASSIC" TUBE OUTPUT TRANSFORMERS
Impedance
2.5K or 4K
Primary
(Ohms)
10K
MULTIPLE IMPEDANCE - 8 WATT
Output - General Purpose (125H-J Series)
Schematic & Hook Up Data
Impedance
Secondary
6/8 or 3.2/4
2, 4 or 8
(Ohms)
www.hammondmfg.com
Inductance
Primary
Henrys
5.6
5.6
89
2.81
3.25
A
1.40
1.50
Dimensions (Inches)
B
1.63
1.94
St. Laurent, Quebec [phone]
C
Cheektowaga, NY [phone]
Guelph, Ontario [phone]
Pri. Impedance
Brown to Blue
Plate to Plate
2.38
2.81
Red B+
4,000 C.T.
4,000 C.T.
2,500 C.T.
2,500 C.T.
D
(Plate)
(Plate)
(Ohms)
Brn
Blu
CANADA
Mtg. Hole
USA
0.187
0.187
PRI
G
Impedance
125J
(Ohms)
3.2/4
3.2/4
Sec.
Lbs.
0.55
Wt.
6/8
6/8
1
SEC
Connections
WHT - GRN
WHT - YEL
BLK - GRN
BLK - YEL
Use Sec.
Green
Yellow
White
Black
Lead
©