More about time (745)

1-10-1993 | There is little to say about the true r.m.s. converter. The circuit diagram shows a standard application of the AD736JN, connected to a n...

1-09-1993 | Together with the associated software, this circuit is not only a 3%-digit PC-controlled digital multimeter (DMM) with a plethora of bells...

1-07-1993 | Many battery-operated appliances have an LED indicator that shows the state of the battery. If the battery is almost flat, the LED flickers....

1-07-1993 | A simple unit for testing an audio, TTL or CMOS circuit is always useful. Here, an oscillator, based on IC(1a), generates a frequency tha...

1-07-1993 | The UAA2016 from Motorola lends itself admirably to making a proportional mains-operated temperature control. A resistor with negative tem...

1-07-1993 | The tester cannot only detect rectangular-wave signals. It can also generate them. The test signals may be generated continuously or for a...

1-07-1993 | Based on only two ICs and a transistor, this circuit can perform three test functions selected by switch S1.

1-07-1993 | This audio-frequency receiver is the counterpart of the infra-red transmitter. The output from the infra-red diode D1 is amplified by IC1...

1-07-1993 | The aim of the design of this 'zener diode' is to obtain a fast voltage regulator that can provide high currents. The circuit is based on...

1-07-1993 | All I²C cards published so far in this magazine are normally powered by the 5 V supply in the PC via the 6-way DIN socket on the 12C PC...