Practical
Electronics
olume . o.
A ril
I
Contents
Pro ects and Circuits
I
older e ow ven with PI Control Part by Phil Prosser
Make short work of soldering boards full of surface-mount components with this
lo cost and easy to uild
solder re o oven.
Programma le hermal egulator Part by Tim Blythman and Nicholas Vinen
This month, how to build the two Arduino shields, program the Arduino, build the
ater loo s and t ea it to suit your needs.
re uency eference ignal istri utor by Charles Kosina
34
you have ulti le test instru ents ut only one very accurate re uency re erence
this ro ect lets you share the re erence ithout attenuating or degrading the signal.
eries
eatures and Columns
he o
e ort by Barry Fox
Do something useful today
8
echno al by Mark Nelson
Whiskers are back and killing your electronics!
et or by Alan Winstanley
his onth is hydrogen an alternative to ossil uels atteries or cars e revisit old
PE ora and ho to avoid oo sha e i your oo shelves are letting you do n
ic tart by Mike Tooley
Part 2: Getting started with RFID – working with cards and tags
a s Cool eans y ax The agnificent
Flashing LEDs and drooling engineers – Part 14
Audio ut by Jake Rothman
Making a Transistor Radio – Part 2
Circuit urgery by Ian Bell
Timing and metastability in synchronous circuits – Part 2
a e it with icromite by Phil Boyce
art
aving un ith a icro ite lus
58
art
egulars and ervices
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© Electron Publishing Limited 2021
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 May 2021 issue of Practical Electronics will be
published on Thursday, 8 April 2021 – see page 72.
Practical Electronics | April | 2021
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