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My 667 i picked up from a guy was only putting out 250 watts with a swing input of 11 watts. I opened it up and found a 1000pf cap just loose sliding around inside. After finding a schematic, I realized that there were 2 inside attached to the output transformers. 1 per output. I hooked up the loose 1, watts went up to 300 but I could smell heat. Using my heat detector gun, I checked the transistors. They were warm but not hot. In circuit testing appeared good but the combiner resistor git quite hot to touch. Im thinking that by replacing one stacked mica 1000pf cap and not having another to put onto the other set is causing this imbalance and heating up that resistor. Thoughts?

[QUOTE="vswr, post: 855050, member: 65906"] My 667 i picked up from a guy was only putting out 250 watts with a swing input of 11 watts. I opened it up and found a 1000pf cap just loose sliding around inside. After finding a schematic, I realized that there were 2 inside attached to the output transformers. 1 per output. I hooked up the loose 1, watts went up to 300 but I could smell heat. Using my heat detector gun, I checked the transistors. They were warm but not hot. In circuit testing appeared good but the combiner resistor git quite hot to touch. Im thinking that by replacing one stacked mica 1000pf cap and not having another to put onto the other set is causing this imbalance and heating up that resistor. Thoughts? [/QUOTE]

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