Practical
Electronics
Volume 52. No. 5
May 2023
ISSN 2632 573X
Contents
Projects and Circuits
500W Power Amplifier – Part 2 by John Clarke
After last month’s description, we follow on this month with amplifier construction,
beginning with the Amplifier Module PCB assembly.
17
Precision AM-FM DDS Signal Generator by Charles Kosina
27
This Signal Generator offers very high calibrated accuracy with an error of ten parts
in a billion. It boasts plenty of features, including amplitude and frequency modulation.
Improved SMD Test Tweezers by Tim Blythman
Our SMD Test Tweezers project from October 2022 was extremely popular. We’ve
decided to see what features we could add by upgrading its microcontroller.
Series, Features and Columns
Techno Talk by Max The Magnificent
Prophecy can be perplexing
8
The Fox Report by Barry Fox
Cinema’s insatiable appetite for ‘versions’
10
Net Work by Alan Winstanley
This month’s Net Work examines the latest EV trends, plus updates on power
generation and news from the LEO satellite broadband sector.
12
Make it with Micromite by Phil Boyce
Part 46: A PicoMite Smart-light Controller – Part 1
46
Max’s Cool Beans by Max The Magnificent
Arduino Bootcamp – Part 5
51
Circuit Surgery by Ian Bell
Op amps as comparators
55
Audio Out by Jake Rothman
Op amp adaptor boards: surface mount and through-hole versions
60
Electronic Building Blocks by Julian Edgar
Controlling RC servos with the Pololu Micro Maestro
63
Wireless for the Warrior
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Editorial
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PE Teach-In 9
Practical Electronics PCB Service
PCBs for Practical Electronics projects
Classified ads and Advertiser index
Next month! – highlights of our next issue of Practical Electronics
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Regulars and Services
Made in the UK.
39
9
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67
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Written in Britain, Australia,
the US and Ireland.
Read everywhere.
© Electron Publishing Limited 2023
Copyright in all drawings, photographs, articles,
technical designs, software and intellectual property
published in Practical Electronics is fully protected,
and reproduction or imitation in whole or in part are
expressly forbidden.
The June 2023 issue of Practical Electronics will be
published on Thursday, 4 May 2023 – see page 72.
Practical Electronics | May | 2023
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