la7612

wait.............maybe because it's a LM7812.................it's the one, try onsemi.com for a sample. I can help you out

if you look at the front with the part number then the first leg to the left is + Vin, and the middle leg is Ground(Gnd), and the right leg is +Vout. The metal tab with the hole in it is GND as well

These devices require that the input voltage be 2 volts higher then the output, so in your case 14 volts minimum, if you need more current then use a T0-220 heat sink for current up to 1.5 amps depending on the part number, refer to the data sheet. Your going need a filter cap mounted near the input, and it can vary in size try 220uF first then increase if you need to. If you find that the regulation begins to drift slighly, then increase the value to 330uf and so on.

On the output pin you can just use a 0.1uf cap, and add a 1uf to 10uf cap if you need to, it all depends what your application requires. If it's more than 500ma then use the 0.1uf and 10uf cap together in parallel on the output, and mount regulator with the heat sink.

Refer to John D. links book on "DC Power Supplies" it's a good place to start, if you need answers .......OK.

Neil W.Fisk

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its a big say 32 pin ic chip in an rca tv. not a simple regulator. Thanks anyways