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 /- 3db) @1 kHz.
• Same as model 124A except for 49% Nickel laminations for greater fidelity.

Specifications:

• Frequency Range: 150 Hz to 15 kHz
• Inductance: 108H
• Current Rating: 45 mA
• Maximum D.C. Current: 45 mA
• Maximum D.C. Resistance: 1.5 kOhms
• Power Rating: 5 W
• Winding: C.T.
• Primary Impedance: 10 kOhms
• Secondary Impedance: 90 kOhms C.T.
• Primary D.C. Resistance: 403 Ohms
• Secondary D.C. Resistance: 1500 Ohms
• Number of Channels: Single
• Shielding: Unshielded
• Termination Style: Terminals
• Mounting Style: Chassis Mount, 2-hole
• Width: 2.38”
• Depth: 1.35”
• Height: 1.43”

Hookup Data:

For Parallel connected operation (33.8K Ohm Secondary): Connect the GRN/YEL wire to the GRN wire AND the BLK/YEL wire to the BLK wire.

For Series connected operation (135K Ohm Secondary): Connect the BLK/YEL wire to the GRN (this becomes the center tap) - GRN/YEL and BLK wires are the output.