Description

Discrete 24V Single Supply Stereo Preamplifier

Simple discrete (3-transistor) stereo preamplifier with bass, treble, balance and volume. Also includes input source switching to control a separate PCB. The reason this came about was mainly through experimentation, and I wanted a single-supply rail stereo preamplifier for a single-supply rail power amplifier I had. These PCBs will be released soon.

Input selector indicator PCB:

https://www.pcbway.com/project/shareproject/Discrete_24V_Single_Supply_Stereo_Preamplifier_Input_Indicator_d24a30d6.html

Video of this project:

Enjoy!

Schematic and Layout

Schematic

preamp-rev-b-schematic.png

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Mar 19,2024

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Discrete 24V Single Supply Stereo Preamplifier

2 Layers PCB 42.2 x 187.7 mm FR-4, 1.6 mm, 1, HASL with lead, Blue Solder Mask, White silkscreen

A simple stereo preamplifier that will run on a single supply, with bass, treble, balance and volume controls.

451

Published: Mar 19,2024

BOM(Bill of materials)

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Only PCB

PCB+Assembly

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