
07-23-2011, 05:31 AM
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| Jock Supporter | | Join Date: Feb 2008
Posts: 7,536
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Quote:
Originally Posted by pimphand442 Please help i have a Palomar 300A 2 pill mobile amp and i cant find a schematic on it anywhere i can only find tube style now the reason why i need the schematic is i got 2 new 2sc2879 for it but someone removed the rf chokes and i have new ones but not sure where to soldier the wires these were the only things missing thanks | There would be only need for one choke from the input transformers to ground but need for two 10 ohm resistors from the base of the transistors to ground.
If it's the choke missing it would go from front side of the transformer(side opposite the transistors) to ground.
If it's the resistors they go from the base of the transistors just behind the input transformers.
You can look at most palomars for directions as there is no difference in construction between it and any other unless the amp has biasing or switchable biasing which would require a circuit to switch out the dc grounding of the rf choke to the input transformer and switch in the bias circuit but I don't believe you'res has that. |