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Audio
Circuits: Preamplifiers Page 2
Amplifier -- Main Page
Audio Circuits -- Main Page
Audio Preamps: #-G
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Last Updated on:
Monday, October 03, 2011 06:07 PM |
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Links to electronic circuits,
electronic schematics, designs for engineers, hobbyists, students & inventors:
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HI FI Preamp - It has an exceptionally fast high frequency
response,as demonstrated by applying an 100kHz squarewave to the
input. [This circuit by Graham Maynard from Newtownabbey, Northern
Ireland] |
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Hi-Fi Preamp - Another preamp, but this one has tone controls,
and all pots are PCB mounted (added 6/07) |
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Hi-Fi Preamplifier - Circuit designed by Graham Maynard |
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High Performance Audio Applications of the LM833 - RIAA Phono
preamplifier stages and active crossover ne2-rks (app note added 3/03)
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High Quality Audio Preamp - An audiophile quality preamp, with
full switching and programmable gain (added 6/07) |
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High side PWM Motor/Light Controller - These two schematics are
variations on another PWM circuit that I designed. The diagrams are
for 12V operation only and there are high side (common ground) and low
side (common +12V) versions. The low side version of the circuit uses
an N Channel FET,..... [Circuit Designed by G. Forrest Cook] |
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IC Mic Preamp uses Jensen Twin-Servo Circuit Topology - AS082 Jenson Transformer
Application Note (app note 11/02) |
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IC PreAmplifier Challenges Choppers on Drift - National Semiconductor Application
Note (app note added 2/06) |
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Intercom Preamp - a convenient way of making an intercom is to use a loudspeaker as a
microph1(added 6/06) |
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JFET Double Balanced Mike Preamp - Based on a design by Graeme Cohen AES Preprint
#2106 (Circuit design added 08/08/08) |
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JFET Mike Preamp using Jensen JE16 Input Transformer - (electronic circuit added
08/08/08) |
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LF071 Mic Amplifier - A high quality microphone preamplifier using a single power
supply, suitable for dynamic or electret microphones. The op-amp used can be any low
noise, high performance type, e.g. NE5534,TL071, OPA 371 etc [Designer, Andy Collison] |
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Light Controller High Side - Diagrams are for12V operation and there are high side
(common ground) and low side (common +12V) versions…. [Designed by G. Forrest Cook] |
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LM358 Preamp - Another very simple audio preamp to build. all parts should be
available at your very local electronics shop…. |
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Low impedance microphone Amplifier - The circuit is a microphone amplifier for use
with low impedance (~200 ohm) microphones. It will work with stabilized voltages between
6-30VDC. If you don't build the impedance adapter part with T1, you get a micamp for
higher impedance microphones.… [Peter Jakab, Electrical Engineer, Engineer of Informatics] |
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Low Noise Balanced Microphone Preamp - A discrete front end makes this balanced
microphone preamp very quiet, and it has excellent noise rejection. Since the SSM2017 has
been discontinued (sad but true), and if you can't get the INA217 this may be the ideal
replacement…(added 4/02) |
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Low Noise Microphone PreAmplifier - Simple unbalanced design, suitable for
microphones, very low noise (schematic / Circuit design added 9/02) |
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Low side PWM Motor/Light Controller - These two schematics are variations on another
PWM circuit that I designed. The diagrams are for 12V operation only and there are high
side (common ground) and low side (common +12V) versions. The low side version of the
circuit uses an N Channel FET, the high side version of the circuit uses a P Channel FET.
N Channel devices tend to handle more current than P Channel devices, they are also less
expensive. The high side version of the circuit is useful when one side of the load has to
be grounded..... [Circuit Designed by G. Forrest Cook] |
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Low Voltage PreAmplifier - A low voltage preamplifier optimized for 3 Volt operation.
(added 10/05) [Andy Collison] |
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Masthead Preamp - Electroinic circuit design…. [from Harry Lythall's website] |
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Medium Wave Active Antenna - This circuit is designed to amplify the input from a
telescopic whip antenna. The preamplifier is designed to cover the medium waveband from
about 550Khz to 1650Khz. The tuning voltage is supplieb via RV2, a 10k potentiometer
connected to the 12 Volt power supply.... [Circuit : David Sayles] |
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Microphone PreAmplifier - This is a simple microphone preamplifier circuit which you
can use between your microphone and stereo amplifier. This circuit amplifier microphone
suitable for use with normal home stereo amplifier line/CD/aux/tape inputs. This
microphone preamplifier can take both dynamic and electret microphone inputs (preamplifier
provides power foe electret microphone elements). The idea of this circuit is to keep the
design as simple as possible....(electronic schematic added 8/02) |
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Minimalist Discrete Hi-Fi Preamp - (schematic / Circuit design added 9/02)
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Modular Audio Preamplifier - High Quality, Discrete Components Design. Input and
Tone Control Modules. (schematic added 6/07) |
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MOSFET-Based PreAmplifier for FM Radio Dxing - (electronic Circuit / Schematic added
10/04) |
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Neumann U67 microphone preamp power supply - (diagram added 2/07) |
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Op-Amp Microphone Preamp - A high quality microphone preamplifier using a single
power supply, suitable for dynamic or electret microphones. The opamp used can be any low
noise, high performance type, e.g. NE5534,TL071, OPA 371 etc….(schematic added 01/2010)
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Audio Preamps: #-G
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P-R
S-Z |
