Help with speaker protection kit

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julcat

Member
Joined 2009
I'm bulding an amplifier so i buy a speaker protection kit it needs 12-0-12 to 15-0-15 volts the transformer has a 12 and a 18 volts out, so could someone explain me how to conect the speaker protection kit to the transformer??

Thanks a lot

Schema.jpg

Transformer.jpg
 
A

Andrew Eckhardt

Member
Joined 2005
Looks like they may have left you some spots to put two more diodes for a full bridge. If everything exists as the graphics show then wiring the 12V transformer winding from either 12 to the 0 connnection will get you running half wave. You should inspect those traces around the empty pads and determine how to install the additional diodes and wire for full bridge.

The manufacturer should have made up their minds and either sent you a center tapped transformer or a complete rectifier circuit.
 
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