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Old 10-12-2010, 03:39 AM
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RitchieMars RitchieMars is offline
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Join Date: Apr 2010
Location: Fountain Inn, South Carolina
Posts: 244
Well, I swapped out that 6AU6 for the 6BA6 and it didn't seem to help. If anything, I think the buzz got worse. I tried making minor adjustments to the sound cut-off coil, no results. I tried the intercarrier coil, but it didn't feel like my allen wrench fit it. I know putting the tool down into the coil made it louder. I would have taken some voltage readings, but at one point I reached and turned the fringe lock and I heard two sharp cracks. That scared the crap out of me, but I checked and found no capacitors blown, no visible signs of arching. Maybe a shard of the steel wool I used earlier got into something? I did find that the way I had things positioned, the speaker wire was up against the low voltage rectifier tube and it got stuck to it and when I pulled it off, I realized it had melted slightly from the heat. That's the hottest corner of the chassis, so I made sure to reposition the speaker wire afterward.

I checked a bunch of resistors in the video output section but I swear I can't find anything amiss. I think I found one of those peaking coils, and it looks like something coated in wax with a red dot on it. It measures 8 ohms, compared to the 10 listed on the schematic.

Either way, the picture is still washed out when I adjust for the best sound output. I can make it contrast better by turning the AGC down, but then the buzz gets really loud. On one channel, I actually got the sound to work pretty good and the buzz was barely noticeable. Then a commercial came up and it was buzzing again.

Last edited by RitchieMars; 10-12-2010 at 03:43 AM.
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