View Single Post
 
Old 03-31-2019, 10:13 AM
boguslaw's Avatar
boguslaw boguslaw is offline
Gold Member
 
Join Date: Aug 2007
Posts: 2,494
Once I spotted old patent (can't find it again) when the same amount of work in resistive heater is described to be done by replacing AC by sharp rectified AC pulses of higher voltage and higher frequency. It was a patent from 30-ties
__________________
 
Reply With Quote