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10 AMP RACK MOUNT REPEATER POWER SUPPLY  

THIS SUPPLY POWERS OUR LOCAL 2 METER REPEATER, VK6RWR.

INCORPORATING A LM396K 10 AMP ADJUSTABLE VOLTAGE REGULATOR AND FIXED 12 VOLT @ 1AMP UNREGULATED AUXILIARY SUPPLY.  

 

This LM396K is a real bastard of a device as it has internal over current and temperature shutdown. (... and so it should, it really needs it)  I bet it was an expensive device for who ever purchased it!!! It really is a clever 10 amp regulator but it's all packaged in a single TO-3 case! The problem is, it's a heck of a lot easier to cool 2, 3, 4 or 5  2N3055's in TO-3 cases then one LM396K in just one TO-3 case!!!   Built from surplus materials, total cost not including my time.... maybe $20 - 25.  

 

SCHEMATIC

 

FRONT VIEW

 

INSIDE VIEW

The pictures of the "inside view" is not the exact wiring arrangements as when the project was originally built. But it looks very very close to it.

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