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

Product Price Breakdown
1+ £48.60
5+ £46.65
10+ £44.71
25+ £43.74
50+ £42.28
100+ £41.79
250+ £41.31
500+ £40.82
1000+ £40.58
2500+ £40.09
In Stock Prices shown excludes VAT
Product Information
Part No 124F
Product Series 124 Series
Audio Watts5
Primary Impedance (Ohms)15K C.T.
Primary D.C. Resistance (Ohms)900
Primary Impedance (Ohms)3.75K / 15K
Secondary D.C. Resistance (Ohms)899.6
Secondary D.C. Resistance (Ohms)Dual
WindingGrain Oriented Steel
Dimension A73mm
Dimension B44mm
Dimension C60mm
Dimension D60mm
Mounting Hole5mm
RoHS Compliant Yes
REACH Compliant Yes
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124F | 124 Series | Hammond Manufacturing Transformers | KGA Enclosures Ltd

124 Series - Tube Driver - Interstage
Product Information
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Customisation Services

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).