NZHS forum thread: 
https://www.nzhuntingandshooting.co.nz/f53/diy-induction-annealer-41482/

ZVS Induction PCB schematic and some info:

https://spaco.org/Blacksmithing/ZVSInductionHeater/1000WattZVSInductionHeaterNotes.htm

Annealing info: 
https://www.6mmbr.com/annealing.html

 

Original GinaErick build thread:

https://forum.accurateshooter.com/threads/induction-brass-annealer-redux.3908353/

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