Diy induction annealing for reloading and why.

So my order of 7.62x39 cases arrived today! And I got my DIY annealing kit together. It's an adjustable timed switch, to a Induction Heater, normally used for siezed bolts and nuts I think.
links
Induction heater
www.ebay.ca/itm/164342346856
Timer
www.amazon.ca/gp/product/B07V...
Power source for timer
www.amazon.ca/gp/product/B01C...

[@mr.horseshoe2301]

Looks awesome! Gotta try this since I don't have $1600 to spend on an induction annealer. Never fiddled with electronics before.