Showing posts with label FM deviation super VXO. Show all posts
Showing posts with label FM deviation super VXO. Show all posts

Friday, June 11, 2010

FM deviation increased

Last night I was able to get more deviation by enlarging the coil in the super vxo. It was difficult to get both a correct center frequency and sufficient deviation.

I also removed a transistor that was supposed to work as a varicap. I even forgot it was in. It is probably something that I forgot to remove.

Now the audio sound much louder on a FM receiver. The sub audio tones still work.