微波自动报警、节能两用开关季平摘机后电压（Ｖ）未摘机电压（Ｖ）６４８．８外线０．２７０．６ｂ１０．６５０．０５ｃ１０．９４７．１ｃ２整机由微波探头、主机、报警器、电源４部分组成，图１是探头，高频三极管在Ｃ１正反馈的作用下产生自激振荡，振荡频率通过电容... Microwave automatic alarm, energy-saving dual-use switch after the level off-hook voltage (V) does not pick up the voltage (V) 648.8 outside 0.270.6b10.650.05c10.947.1c2 machine by the microwave probe, the host, alarm Device, power supply 4 parts, Figure 1 is a probe, high-frequency triode in the C1 positive feedback under the action of self-oscillation, the oscillation frequency through the capacitor ...