Ton Giesberts (358)

1-07-1998 | The preamplifier is intended for use with dynamic (moving coil – MC) microphones with an impedance up to 200 Ω and balanced terminals. I...

1-07-1998 | A pan pot enables a monophonic input signal to be positioned where desired between the stereo loudspeakers. When P1 (see diagram) is in...

1-07-1998 | The circuit in the diagram is a very handy tool for rapidly checking all kinds of thyristor (SCR, triac, …). In case of a triac, all fou...

1-07-1998 | The pulse width of the compact pulse cum frequency modulator can be varied by altering the change-over point of comparator IC1 with a co...

1-07-1998 | This little circuit will be valued highly whenever a signal is required for the testing of infrared receivers. In most cases, such a tes...

1-07-1998 | Over the years, infrared remote control units have become better designed and more reliable. They retain a few weak facilities, howeve...

1-07-1998 | According to National Semiconductor, the LM3886 is a highperformance 150W Audio Power Amplifier with Mute. The performance of the LM3886...

1-07-1998 | Although the protection circuit is fairly simple, it forms an effective guard against overload of the input of amplifiers and loudspeake...

1-05-1998 | When in 1870 John Tyndall, an Irish physicist working in the USA, showed that light can be guided, he could not have foreseen that li...

1-02-1998 | An annoying phenomenon (not restricted to PCs) is that each and every programme that produces sound does so at a different level. Thi...