| The MGA-86563 from HewlettPackard is a three-stage, GaAs, MMIC (monolithic microwave integrated circuit) that offers low noise figure an...
| The MGA-86563 from HewlettPackard is a three-stage, GaAs, MMIC (monolithic microwave integrated circuit) that offers low noise figure an...
| Most soundcards have a ‘line’ input and one for an electret (condenser) microphone. To be able to connect an inductive tape-recorder head...
| The combination of a wire loop with the size of an A4 sheet, coupled to a carefully matched and easily tuned amplifier offers high-qua...
| According to National Semiconductor, the LM3886 is a highperformance 150W Audio Power Amplifier with Mute. The performance of the LM3886...
| One of the drawbacks of a threepin voltage regulator is that the input voltage needs to be 2.5–3 V higher than the output voltage. This...
| When the SDA (Serial DAta) lines on both the left and right lines are 1, the circuit is quiescent and optoisolators IC1 and IC2 are not...
| A small audio test generator is very useful for quickly tracing a signal through an audio unit. Its main purpose is speed rather than re...
| The preamplifier is intended for use with dynamic (moving coil – MC) microphones with an impedance up to 200 Ω and balanced terminals. I...
| To many hi-fi enthusiasts and musicians, the thermionic valve (electron tube), the sound of a valve amplifier cannot be bettered by that...
| The LM4830, whose internal circuit is shown in this article, is an integrated solution for twoway audio amplification. It contains a bri...