Micrometals Iron Powder Toroid T200-2: Radio Frequency core for HF Baluns or Output Transformers of Power Amplifiers.
Popular for amateur radio applications with typical frequency range from 500hz up to 40MHz: Broadband frequency range 200 to 400 MHz.
Outside Diameter (OD): 50.8 mm
Inside Diameter (ID): 31.8 mm
Height (Ht): 14 mm