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Title: National NC-300 IF can needed Post by: WV9R on November 30, 2008, 10:35:30 PM I'm in need of a IF can for my NC-300, the one that I'm looking for is noted as T 5 in the schematic. I beleive it might be the reason my oscillator isnt oscillating :D If anyone has such a beast or know where I might be able to get one please let me know. As always I'm open to suggestions. Thanks Ray
Title: Re: National NC-300 IF can needed Post by: Pete, WA2CWA on November 30, 2008, 11:35:50 PM T5 has a resistor, 2 caps, and a tapped inductor. Did you check to see if the coil is open, shorted, caps bad, etc.? Not much in it.
Title: Re: National NC-300 IF can needed Post by: WV9R on December 01, 2008, 09:02:40 PM Thats my plan for tonite, The ham that I bought it from said this can has been a trouble spot for him with this rig for a while on and off, so i thought it might just be better to replace it if I can find one. Thanks Ray
Title: Re: National NC-300 IF can needed Post by: w3jn on December 02, 2008, 08:23:46 PM Check to make sure the windings are securely soldered to the terminals, and if there's a silver mica cap in there, it *could* be bad. AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
I don't have a skizmatic handy for the NC-300 but if the oscillator uses a 6C4, I'd try replacing it (with several different brands if necessary). I've found Raytheon 6C4s just won't oscillate in some circuits. |