I got a old RC car + controller, I would like to increase it's range. I did a research and I found a idea here. The idea states:
Here's what you do. Parts: one (1) NPN transistor. Tools: Soldering iron, wire cutters, wire.
Idea: After going over my RC remote with a multimeter I've found that the amplifier(transistor) inside the remote only runs at .2 volts So... using that as a first stage amplifier is a good start. Then, when you connect the 3v from the batteries to your amplifier(transistor) it'll be a 15x gain. So, your transistor has 3 pins C B E connect C to the + terminal either on the PC board or straight to the batteries. B to where the antenna used to connect. And E to the antenna wire. This tripled the range of my New Bright remote control mustang. Also, remember your remote converts it all to a serial message that gets decoded at the end point so it doesn't have to be all that great of signal quality. It can be noisy as hell and it'll still get the message across. Good luck!
So I'm beginner and still I have no idea what I'm doing so I would like to ask about little explanation how I can wire the circuit.
I found in my house a TIP120 transistor. If my schematic is wrong can somebody explain me how to get it working?
PS: Sorry for the bad schema, I wasn't sure how the components between the antena and the transistors are called.