Attachment 13392
The battery for the 2015 one takes three AAA batteries so I assume the battery is running at 4.5 volts. I know how to calculate the values for the resistor but I dont know what to do for the PNP transistor.
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Attachment 13392
The battery for the 2015 one takes three AAA batteries so I assume the battery is running at 4.5 volts. I know how to calculate the values for the resistor but I dont know what to do for the PNP transistor.
Before my local Radio Shack closed, I would pick up TIP42c or TIP42g transistors for those conversions. You should be able to find some online.
Thanks! So one of those would work for that voltage and a led taking in 3 volts. But how do I do the math to find out what transistor I would need?
No math with transistors. You just need one that can handle the current you're going to push through it.
Okay, one more thing. With PNP transistors the current flows from emitter to the collector based on the base having fewer volts than the emitter(or collector if I'm wrong). Now the base is usually the input that's attatched to a battery like in this picture, and the flow is based on it. But in this diagram the emitter side is the input, and the base is the outputing the amplified power. this is confusing me.Quote:
Originally Posted by Silver Serpent
question, will the obi wan soundboard fit into a sink tube? like, what size is the board?