Astro's Electronics Lab
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Description
1 Watt "Champ" Utility Amplifier
Need a small utility amplifier to drive a speaker? This is the amp! Coined the "Champ", was originally the intellectual property of Darren B. Yates of Silicon Chip magazine (around 1995). Now, here it is in all its glory, together with a simple Class-A preamplifier, the "Champ"!
I would suggest using smaller profile capacitors for the 470nF, as the footprint I chose may be too small for MKT style to fit. Polyester "green-cap" capacitors would be a good substitute.
Here is a video on this project which may help in assembly:
Schematic and Layout
Schematic
1W champ-schematic.png
Apr 19,2023
840 views
1 Watt "Champ" Utility Amplifier
2 Layers PCB 48.3 x 63.5 mm FR-4, 1.6 mm, 1, HASL with lead, Blue Solder Mask, White silkscreen
A small 1 watt utility amplifier for signal tracing, or general purpose audio.
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Published: Apr 19,2023
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File Last Updated: 2023/04/19 (GMT+8)
File update record
2023-04-1908:31:04
Parts List (BOM) is updated.
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