Tube Driver-Interstage-Open Frame (124 Series)

• 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 (+/- 1db max. ref. 1 Khz.) at full rated power.
• Our part number 124B is the same as our 124A except for 49% Nickel laminations for greater fidelity.
• Our part number 124C (below) is the COIL ONLY (for those experimenters who want to use their own "iron").
• If you are looking to replace Radiola III-A audio transformers, check out our Radiola replacement unit- Click here.
• All rated at 5 watts audio
• See mechanical data below  

Part Number (click for price or to order)	Data Sheet	Primary		Secondary			Laminations
		Impedance (Ohms)	D.C. Resistance (Ohms)	Impedance (Ohms)	D.C. Resistance (Ohms)	Winding
								124A		10K	403	90K C.T.	1524	C.T.	Grain Oriented Steel
								124B		10K	403	90K C.T.	1500	C.T.	49% Nickel
124C		10K	403	90K C.T.	1524	C.T.	None- Coil Only
124D		7K C.T.	454	15.8K C.T.	681	C.T.	Grain Oriented Steel
124E		15K C.T.	728	33.8K/135K	3880	Dual	Grain Oriented Steel
124F		15K C.T.	900	3.75K / 15K	899.6	Dual	Grain Oriented Steel

 Mechanical Data