![]() ![]() The first five are used in testing the tube for shorts. Make final line adjustment after the tube being tested is placed in its socket.ĥ. This establishes standard voltages on the tube. The button P7 is held down and the knob, LINE ADJUST, is turned until the meter pointer rests exactly over the mark, LINE TEST, at the centre of the meter scale. –After the power is turned on, press the push switch P7 which will cause the pointer of the meter to move up the scale. Also in testing duo-diode-triode tubes the amount of selector setting has been reduced to a minimum.ģ. For example the filament setting is nearly always JR. The selector system is designed to minimize selector settings. These selector switches are electrically interlocked so that it is impossible to connect two different voltages to the same tube pin. (SCREEN) to 3, the sixth (CATHODE) to 7, and the seventh (SUPRESSOR) to 5. The neon lamp is a General Electric,1/4 watt, 110 volt, candelabra base signal lamp. The fuse lamp is a standard #81 auto lamp. There are two rectifier tubes, an 83 and a 5Y3GT, necessary to operate this tester. It can be used on frequencies from 50 to 400 cycles, 110-120 volts. This instrument is designed to operate on 60 cycles 110-125 volt power source. Read These Instructions Through Before Attempting to operate the tester.ġ. Model 600 Vacuum Tube Tester_ Accessories included with the Model 600 tester are: 1 –- Booklet Instructions for Model 600_ 1 – Grid lead with Clip_ Serial Number_ Signed:_ OPERATING INSTRUCTIONS for DYNAMIC MUTUAL CONDUCTANCE TUBE TESTER MODEL 600 ![]()
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