All items tagged with Time and technology (303)

1-03-1996 | This article is one from our 90s collection, we talk about the letters that we received from our dear readers.

1-03-1996 | This article is one from our 90s collection, we talk about the letters that we received from our dear readers.

1-03-1996 | This article is one from our 90s collection, we talk about the letters that we received from our dear readers.

1-03-1996 | This article is one from our 90s collection, we talk about the letters that we received from our dear readers.

1-03-1996 | This article is one from our 90s collection, we talk about the letters that we received from our dear readers.

1-12-1995 | This circuit ensures that messages received by a radio or transceiver are automatically recorded on a cassette or tape recorder. lt is as...

1-12-1995 | This circuit switches a mains operated load on and off under the control of two presskeys.

1-12-1995 | A simple approach to the problem of frequency doubling a digital signal is shown here. An XOR gate, lC(1a) supplies a needle pulse on the...

1-12-1995 | Since the reactance of a capacitor is inversely proportional to the capacitance, it may be used as the basis of determining the value of...

1-12-1995 | This circuit, a. d.c.-d.c. converter, is intended to charge environment-friendly batteries in and environment-friendly way. lt is based...