1992 年 16 巻 53 号 p. 7-11
In order to transistorize 300〜500kW Medium-Wave radio transmitters, we have developed 12kW Medium-Wave Power Amplifier by using new type of SITS with two times breakdown voltage, and power capacity compared to conventional SITs used in 20〜100kW radio transmitters. This new power amplifier has Drain-efficiency of 85% (at 800kHz) and power gain of 16dB.