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Incidentally a similar negative feedback loop via a capacitor/resistor combination that shockwave described can be used to tame oscillation when replacing an output on a radio with one that is different or has higher gain than the original,it will reduce output power but will stabilise the amplifier, at the very least even if you haven't increased output power much you still have a hardier final.

you can see a similar circuit between the collector/emitter of the final Q7 (2sc1969/2sc2050) on the ham international multimode 3 schematic on cb tricks. the driver of that radio also has negative feedback.

[QUOTE="jazzsinger, post: 246275, member: 7426"] Incidentally a similar negative feedback loop via a capacitor/resistor combination that shockwave described can be used to tame oscillation when replacing an output on a radio with one that is different or has higher gain than the original,it will reduce output power but will stabilise the amplifier, at the very least even if you haven't increased output power much you still have a hardier final. you can see a similar circuit between the collector/emitter of the final Q7 (2sc1969/2sc2050) on the ham international multimode 3 schematic on cb tricks. the driver of that radio also has negative feedback. [/QUOTE]

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