currentlyvout Posted November 4, 2010 Report Share Posted November 4, 2010 looking for a pretty small 1.5ohm slide pot that can take about 5-7w.don't seem to be able to find one anywhere.i went with resistors but they are pretty big and will not fit into my project and cant afford extra room.it can be anything close from 2ohm - 1.2ohm Quote Link to comment Share on other sites More sharing options...
audioguru Posted November 4, 2010 Report Share Posted November 4, 2010 Most pots are 1/2W and are 100 ohms and more.You need one of these low power pots to control a power transistor that dissipates the 7W.A 7W heatsink is not very small. Quote Link to comment Share on other sites More sharing options...
Hero999 Posted November 6, 2010 Report Share Posted November 6, 2010 Or better still use PWM so a heat sink won't be required. Quote Link to comment Share on other sites More sharing options...
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