At the time, only Japan possessed the ability to produce inverters that could withstand the stress of producing 2,000 volts 80,000 times per second. Chung first cloned Japanese products and then re-engineered their internal structure. The result was an inverter that could withstand up to 5,000 volts, with a price that undercut Japanese models by 20 %.
當時只有日本能製造出可以承受一秒鐘八萬次兩千伏特高壓的變壓器，鐘玉麟先複製日本製品，再重新改造內部物理結構，不但讓變壓器承受的電壓提高到五千伏特，而且價格比日本製品便宜了兩成。