Ohm Audio
Can someone give me a pinout for an Audio Transformer?
I am using an audio transformer in a schematic, but I don't understand why. Can someone explain how a 1000 ohm to 8 ohm audio transformer works? (Radio Shack #273-1380)
The transformer is for impedance matching, but in your circuit could be for some other purpose, e.g. I have one in a DC-DC voltage converter, putting out abt. 75V from a 9V battery. Another, I have as an isolation transformer from a computer soundcard to an external circuit.
The impedance match function is usually matching a radio circuit impedance to a loudspeaker impedance (8 ohms).
So far as pinouts, look in online catalogue. However, the primary connections are green and blue, with a black centre tap. The 8 ohm speaker secondary winding has red and white wires.