In Electronic Infomation Category: 1 | on November 24,2011
Multimeter can be used to quickly determine, determine the method: first transistor emitter with a multimeter to measure the resistance of the reverse, if it is measured PNP-tube, the negative terminated Multimeter base, emitter is terminated; If the tube is a measure of NPN type, the meter base is terminated, a negative termination emitter. Then use a multimeter R 1kQ block measurement, the multimeter dial indication at this time should be great resistance, generally less than full-scale value of 1 / 10. Multimeter and 114 datasheet and then converted to R 10 kfl block, if a large resistance change the dial indication, more than full-scale value of 1 / 3, then the tube is high-frequency control; the other hand, if the multimeter switch to R 10 kfl after block , hands indicated little change in resista...
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