124D | Hammond Manufacturing Transformers
124D | Hammond Manufacturing Transformers | KGA Enclosures Ltd

Product Price Breakdown
1+ £38.56
5+ £37.02
10+ £35.48
25+ £34.71
50+ £33.55
100+ £33.16
250+ £32.78
500+ £32.39
1000+ £32.20
2500+ £31.81
In Stock Prices shown excludes VAT
Product Information
Part No 124D
Product Series 124 Series
Audio Watts5
Primary Impedance (Ohms)7K C.T.
Primary D.C. Resistance (Ohms)454
Primary Impedance (Ohms)15.8K C.T.
Secondary D.C. Resistance (Ohms)681
Secondary D.C. Resistance (Ohms)C.T.
WindingGrain Oriented Steel
Dimension A71mm
Dimension B37mm
Dimension C43mm
Dimension D60mm
Mounting Hole5mm
RoHS Compliant Yes
REACH Compliant Yes
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124D | 124 Series | Hammond Manufacturing Transformers | KGA Enclosures Ltd

124 Series - Tube Driver - Interstage
Product Information
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Product Features
  • Designed for general purpose or replacement use in push-pull or phase inverter tube driver circuits.
  • Should not be used for single ended applications. They have no gap for DC bias current present in SE mode.
  • Open style with minimum 5" long primary leads.
  • Minimum frequency response 150 Hz. - 15 Khz. (+1 /- 3 db) @ 1 Khz.
  • Part number 124B is the same as the 124A except for 49% Nickel laminations for greater fidelity.
  • Part number 124C is the coil only (for those experimenters who want to use their own "iron).
Hookup Data
  • For Parallel connected operation (33.8K Ohm Secondary):
    • Connect the green/yellow wire to the green wire and black/yellow wire to the black wire.
  • For Series connected operation (135K Ohm Secondary):
    • Connect the black/yellow wire to the green (this becomes the center tap) - green/yellow and black wires are the output.
Related Products
  • If you are looking to replace Radiola III-A audio transformers, check out the universal radiola replacement unit (118944 Series).