Practical
Electronics
Volume 50. No. 3
March 2021
ISSN 2632 573X
Contents
Projects and Circuits
Nutube Guitar Overdrive and Distortion Pedal by John Clarke
16
Do yo lon for t at tr e al e so nd in a itar and distortion edal
is one
ses a ni e low olta e twin triode al e so yo now it s t e real deal
Programmable Thermal Regulator by Tim Blythman and Nicholas Vinen
is s er rd ino ased e i le t ermal re lator ses m lti le tem erat re
sensors and Peltier de i es for
of a ti e oolin and eatin
28
una le
Pream lifier with ain Control by Charles Kosina
38
ere s a sim le t na le ream lifier w i
reatly im ro es D
F erforman e
t as o tional ain ontrol and an r n off a
s
ly or antom ower
Series, Features and Columns
The Fox Report by Barry Fox
Fa es s ams and e asion
8
Techno Talk by Mark Nelson
o lame no s ame
10
Net Work by Alan Winstanley
is mont te for F
wor in from ome es e ially t e all im ortant
we am for t e new normal of ideo onferen in
12
Circuit Surgery by Ian Bell
imin and metasta ility in syn
42
rono s ir
its
Part
a e it with icromite by Phil Boyce
Part
a in f n wit a i romite Pl s
46
PIC n i by Mike Hibbett
Part P
F De elo ment oard
50
a s Cool eans y ax The agnificent
Flas in
Ds and droolin en ineers Part
58
Audio Out by Jake Rothman
a in a ransistor adio Part
66
Wireless for the Warrior
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Regulars and Services
Made in the UK.
Written in Britain, Australia,
the US and Ireland.
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72
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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 April 2021 issue of Practical Electronics will be
published on Thursday, 4 March 2021 – see page 72.
Practical Electronics | March | 2021
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