$30 Simple Electromagnet project needed.

Find the correct inexpensive voltage amplifier that will work properly with the Adjustable Frequency Signal Generator. The amplifier voltage and power strength to the electromagnet coil needs to be variable also. Then make assembly instructions and show how to properly assemble and wire these to make the electromagnet work. See attached videos that show what I need. Adjustable Frequency Signal Generator: https://www.amazon.com/Generator-KKmoon-Precision-Adjustable-Frequency/dp/B01HM70CMY/ref=asc_df_B01HM70CMY/?tag=hyprod-20&linkCode=df0&hvadid=312190867589&hvpos=1o4&hvnetw=g&hvrand=8590368367624558633&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9030801&hvtargid=pla-567844128693&psc=1 If you find cheaper and better Adjustable Frequency Signal Generator part that would be better then let me know. I would like this done in 2 days. I will own all copyrights to the design.