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CHA 10.55 Add Comment Tone Control and Preamplifier Edit

Balanced Microphone Preamplifier

The preamplifier is intended for use with dynamic (moving coil–MC) microphones with an impedance up to 200 Ω and balanced terminals. It is a...

CHA 04.46 Add Comment Tone Control and Preamplifier Edit

Modular Phono Preamplifier

Any electronics amateur still in possess of a collection of vinyl recordings and aiming at a high quality reproduction should build this pre...

CHA 04.42 Add Comment Tone Control and Preamplifier Edit

MD Catridge Preamplifier

Phonographs are gradually becoming a rarity. Most of them have had to yield to more advanced systems, such as CD players and recorders or (p...

CHA 04.34 Add Comment Tone Control and Preamplifier Edit

Passive RIAA Preamplifier

There are two types of preamplifiers for magnetic phono cartridges. An example of the most common type is the one described in the March 200...

CHA 22.09 Add Comment Tone Control and Preamplifier Edit

10-Band Equalizer

The equalizer presented in this article is suitable for use with hi-fi installations, public-address systems. mixers and electronic musical ...

CHA 12.32 Add Comment Tone Control and Preamplifier Edit

Preamp Stage For Ceramic Phono Cartridge Or Violin Pickups

While we have published a number of variations on a standard RIAA preamplifier for magnetic phono cartridges, we have not published a preamp...

CHA 12.17 Add Comment Tone Control and Preamplifier Edit

Ultra-Simple Microphone Preamplifier

This little project came about as a result of a design job for a client. One of the items needed was a mic preamp, and the project didn'...

CHA 13.03 Add Comment Tone Control and Preamplifier Edit

Multimedia RIAA Preamplifier

Even if a large number of album titles once available on vinyl are now, little by little, being proposed as CDs, not all are available and f...

CHA 12.12 Add Comment Tone Control and Preamplifier Edit

Preamplifier For Soundcard

This circuit can be used for inductive pick-up elements and dynamic microphones Most soundcards have a ‘line’ input and one for an electret ...

CHA 12.03 Add Comment Tone Control and Preamplifier Edit

Balanced Output Board For The Stereo DAC

This add-on board is designed to provide a pair of balanced audio outputs for the High-Quality Stereo DAC (Digital to Analog Converter). Two...

CHA 10.54 Add Comment Tone Control and Preamplifier Edit

High Quality Moduler Audio Preamplifier

To complement the 60 Watt MosFet Audio Amplifier a High Quality Preamplifier design was necessary. A discrete components topology, using + a...

CHA 12.36 Add Comment Tone Control and Preamplifier Edit

Simple Phono Preamplifier Circuit

in recent years, following CD's introduction, vinyl recordings are almost disappeared. Nevertheless, a phono preamplifier is still usefu...

CHA 12.42 Add Comment Tone Control and Preamplifier Edit

Paraphase Tone Controller

As opposed to the widespread Baxandall circuit (dating back to 1952!) a ‘paraphrase’ tone control supplies a straight frequency response as ...

CHA 10.27 Add Comment Tone Control and Preamplifier Edit

Portable Microphone Preamplifier

This circuit is mainly intended to provide common home stereo amplifiers with a microphone input. The battery supply is a good compromise: i...

CHA 11.36 Add Comment Tone Control and Preamplifier Edit

Modular Preamplifier Switching Center

This module can be a necessary addition to the Modular Preamplifier Control Center when more than two sources need to be connected to the pr...

CHA 08.09 Add Comment Tone Control and Preamplifier Edit

Stereo Preamplifier With Bass Boost

This preamplifier was designed to cope with CD players, tuners, tape recorders etc., providing an ac voltage gain of 4, in order to drive le...

CHA 12.36 Add Comment Tone Control and Preamplifier Edit

Simple Treble Tone Control

The treble control works in a similar manner as the bass control elsewhere in this site, but contains several modifications, of course. One ...

CHA 13.08 Add Comment Tone Control and Preamplifier Edit

Electric Guitar Preamplifier

Here is the circuit diagram of a guitar preamplifier that would accept any standard guitar pickup. It is also versatile in that it has two s...