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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Posted to sci.electronics.components,sci.electronics.repair,sci.electronics.design
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slug-tuned coils or substitutes?
I am trying to get some slug-tuned coils. I tried 4 different
electronics stores and searched online. So far I can't find them. I found a few online, but not at the right uH value. I need them to make a notch filter to block out a radio station (or summat) that is interfering with channel 2 and 4 on my TV. The schematics and complete info are on this page: http://www.dewtronics.com/tutorials/...ter/df222.html The last resort would be to buy an kit online for the notch filter, but it has lots of extra parts to make versions that I don't need. The coils I need a 3.5 turn slug-tuned coil with aluminum core - 0.16 to 0.24 uH 5.5 turn slug-tuned coil with aluminum core - 0.06 to 0.09 uH I can't even seem to find very many inductors of any kind that are under 1 uH in value. Anybody know where I can get these slug-tuned coils or what substitution I can make? I need to be able to vary the inductance so I can tune it to the right frequency to block out from my TV signal. Right now I don't know exactly what exact frequency it is, just that it's between 55 mhz and 72 mhz. |
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