Luc Lemmens (180)

1-12-1995 | According to the radio regulations in most countries, any licensed radio amateur must have a non-radiating load to connect to his transmit...

1-12-1995 | The Iogarithmic-to-Iinear converter in the Type NE604 chip (IC1) is used in the present design as an accurate S-meter for short-wave rece...

1-12-1995 | Occasionally, problems occur when a power supply does not maintain its output voltage owing to a change in load as when an amplifier is...

1-12-1995 | Soldering surface mount devices (SMDS) on to a board is tricky, but desoldering them is even more so. Conventional methods often result i...

1-12-1995 | Computer games remain popular, However, since many games require more than one player, it is a pity that many computers have only one joy...

1-10-1995 | A single-lC amplifier is described that makes it possible in a simple way to apply the TV antenna signal to two or more TV receivers in the...

1-07-1995 | The motive-battery charger has met with great interest, particulary among owners of motor cycles. In response to many requests from owner...

1-07-1995 | Push-pull oscillators have an important advantage over conventional oscillators: they provide appreciably more power at the same supply v...

1-07-1995 | The audio amplifier in a battery-operated scanner or walkie-talkie is often on standby for long periods. Of course, in that state it draw...

1-07-1995 | These adaptor boards are designed for readers who find it increasingly difficult to experiment with certain integrated circuits which are...