2n3055 flyback transformer driver for beginners

Step 2 Preparing the flyback

Using some enamelled magnet wire wind two coils around the core of the transformer in the SAME DIRECTION.

11 turns primary and 7 turns feedback is a good starting point but you can try more or less windings to see what gives the best results.

Using a sharp knife carefully scrape away the enamel coating from the very ends of the magent wire.

Once you have wound the coils and removed the enamel at the ends of the wire check for continuity using a multimeter, doing this can save you lots of bother later on!

You do not need to worry about finding the HV return pin yet.

Comments

[moparman]

You rarely need to scrape the enamel off of magnet wire anymore. They have been putting "solder through" enamel on this kind of wire for many years now. You just need to hold the soldering iron on the wire for a few seconds longer than usual. This is particularly helpful when using very small guage enameled wire.

Gene

[-max-]

ioll try that, i found it works somtines so far, ill try holding it on longer

[Alex1M6]

Thanks for the comment.

All the magnet wire I have purchased from my local electrical store has required me to scrape off the enamel before soldering. Even with my coil gun project where I was using voltages of around 300V with the magnet wire I still had to scrap off the enamel in order for any current to start flowing.