Help with transistors

Mark Borland

I am taking apart a missle launcher tank to use as a base for a robot.· I would like to use the transistor array on the ciruit board inside in order to drive the motors.· The circuit board is labeled MSD2003R-1.· There is a row of 8 transistors along one edge.· They are paired with what appears to be 2 pairs per motor.· Each pair has what appears to be 2 different transistors.· One is labeled H 882 4e the other H 772 4f.· I tried googling the part numbers to see their pinouts with no success.· Can anyone help me with that?· Is there a standard for the 3 pins of a transistor?

Thanks in advance for your help,
Mark

Lawson

Hm... well, motor control circuits all have a similar layout. Because of this, tracing wires on the circuit board can often tell you what pin does what. Posting a detailed picture of both sides of the board would certainly help.

Marty

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Lunch cures all problems! have you had lunch?

Mark Borland

Here are some pictures of the circuit board.· The wires that come from out of the picture come from the battery.· The IC is labeled 8A973P but I can't seem to find a data sheet for it.

Thanks again for any help