Quote:
Originally Posted by fumplet
What qualifications do i need other than 250 and 150 uH. The schematic doesnt list the Q properties.
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You need the inductance which is listed, and the resistance can be helpful. The RCA CT-100, 21CT55, and Motorola 21CT2 all use chalk peaking coils that rot open and I've had good luck using those 2 specs to obtain workable replacements off mouser.
Q might be helpful, but isn't essential. It's surprising how little effect shorting a good peaking coil has or how decent a picture can be with an original dead coil temporarily replaced with a jumper wire.