ELECTRONIC VOLTAGE TESTER

摘要

The tester consists of a string of series connected indication circuits (14l to 14N) the inputs of which are connected to individual branches from the divider consisting of rectifying diodes (16l to 16n) at which there is a voltage proportional to the tested voltage. Each n-th indication circuit (14n) consisting of a transistor (18n) and its base is supplied with voltage from the divider consisting of rectifying diodes (16l to 16n) and in its collector circuit there is a light emitting diode (19n) for indicating voltage. The tested voltage is proportional to the number of shining diodes (19n) of the voltage indication. The connection also indicates the polarity of the testing voltage by the shining diodes (9,11) of polarity indication.<IMAGE>