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Practical Electronics: Components and Techniques

Errata for Practical Electronics: Components and Techniques

Submit your own errata for this product.


The errata list is a list of errors and their corrections that were found after the product was released. If the error was corrected in a later version or reprint the date of the correction will be displayed in the column titled "Date Corrected".

The following errata were submitted by our customers and approved as valid errors by the author or editor.

Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question Note Update



Version Location Description Submitted By Date Submitted Date Corrected
PDF
Page 3
Figure 1-1. Hydrogen and Copper Atoms

There are lots of images that appear as lines instead of pictures (but some appear correctly, be it schematics or pictures) on an Amazon Kindle DX. I've re-downloaded the file and copied it on the Kindle but the problem remains. This is the only book where this happens, hence this report. I'm frequently using my Kindle to read manga in pdf too, so I don't really get why there would be a problem with your book. Could it be that you're saving your images with "exotic" settings? I would be happy to make further tests if needed. Your book looks promising so it would be a pity to miss part of the explanations.

Note from the Author or Editor:
It's a mystery to me. I don't have any issues with viewing the images in PDF or HTML, with various browsers on multiple platforms. I suspect that it might be a case of the device displaying the document not handling scaling gracefully. Also, it might be related to the level of compression applied to the image data when the PDF is generated.

Sebastien Zijlmans  Jul 07, 2014  Mar 10, 2015
ePub
Page 8
Summary of Chapter 12 ... 1st para.

Change "the buffers" to "buffers"

Note from the Author or Editor:
Corrected by author

Tim  Jun 24, 2014  Mar 10, 2015
ePub
Page 26
"Ohm's Law"

Suggest changing "mA/hr" to "mAh" since the "/" implies "divide by" whereas the unit is of course mA multiplied by hours. Also page 32.

Note from the Author or Editor:
Corrected by author

Tim  Jun 24, 2014  Mar 10, 2015
ePub
Page 37
3rd para of "DISTINGUISHING BOLTS FROM SCREWS"

The URL for "http://www.cbp.gov/linkhandler/cgov/trade/legal/informed_compliance_pubs/icp013.ctt/icp013.pdf" does not work.

Note from the Author or Editor:
Corrected by author

Tim  Jun 24, 2014  Mar 10, 2015
ePub
Page 56
"Adhesives and Bonding" 1st para

Spelling. Change "heatsheild" to "heatshield" ( or "heat shield")

Note from the Author or Editor:
Corrected by author

Tim  Jun 24, 2014  Mar 10, 2015
ePub
Page 57
"Glues, Epoxies, and Solvents” 5th para

Incomplete sentence: "When the resin reacts with a hardener, either contained within the resin itself, or applied as an additive. The reaction causes ..."

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
ePub
Page 58
“Glues, Epoxies, and Solvents” 9th para

Change "they set up very quickly" to "they set very quickly"

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
ePub
Page 59
"Working with Plastic" 1st para

Spelling. Change polyvinylcholoride to polyvinylchloride (or polyvinyl chloride).

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
ePub
Page 60
"Working with Metal" 2nd para

Missing capital at start of sentence: ".... shear forces. in other words, ...."

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
ePub
Page 61
"Summary" 1st para

Word missing: "We did not over gas, arc, or spot welding.”

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
ePub
Page 62
"Chapter 3. Tools" 2nd para

Missing word: "“It may not worth the expense of ..."

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
ePub
Page 83
1st para below Figure 3-16

Spelling: "... or indusrial device ..."

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
PDF
Page 114
4th paragraph

The phrase: "The lead-free types have different melting points then Sn-Pb formulations" should read: "The lead-free types have different melting points than Sn-Pb formulations" (ie., "then" --> "than")

Note from the Author or Editor:
Fixed

Anonymous  Oct 08, 2014  Mar 10, 2015
PDF
Page 137
2nd para after Figure 5-2

Change uninterpretable to uninterruptible

Note from the Author or Editor:
Verified and fixed.

Tim  Jun 23, 2014  Mar 10, 2015
ePub
Page 150
Section "Battery Storage Condiderations"

Spelling errors: "Condiderations" "refridgerator" "battries" "recharagable" "storagd"

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
ePub
Page 174
Figure 5-21 and preceding para.

Figure 5-21 shows bypass diodes whereas its caption and the text in the preceding para refers to blocking diodes.

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
ePub
Page 175
Para preceding Figure 5-21

Typo: "... can be connected is series and parallel configurations ..."

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
ePub
Page 183
4th para of "Summary"

Typo: "tecnically"

Note from the Author or Editor:
Corrected by author

Tim  Jun 25, 2014  Mar 10, 2015
ePub
Page 190
Para before Figure 7-31

Change 0.25" to 0.025"

Note from the Author or Editor:
Corrected by author

Tim  Jun 26, 2014  Mar 10, 2015
ePub
Page 217
"Selecting a Relay" 2nd para

The example "... if you want to control a 240 V, 40 A contactor with a 24V coil that draws 36 mA, then a relay rated for 100 mA contact current should do fine.” may be confusing because (if I am not confused) it involves a relay driving a relay but this concept or its purpose has not been introduced. Suggest that a more intuitive example be used, e.g. relay driving a light bulb. Further, the subsequent concept "“In this case either a driver IC or a transistor driver as described in the section Controlling Relays With Low-Voltage Logic will be needed.” may compound this confusion: it is ambiguous whether the IC or transistor driver is intended to drive the first relay that drives the second relay or directly drives the second relay instead of the first relay.

Note from the Author or Editor:
Modified by author

Tim  Jun 26, 2014  Mar 10, 2015
ePub
Page 285
WARNING after Figure 5-15

In regions that use a 230V AC mains supply, it will be higher than 165V.

Note from the Author or Editor:
Fixed

Tim  Nov 09, 2014  Mar 10, 2015
PDF, Mobi
Page 328
Last two paragraphs in the page

While this story of the write-only memory datasheet is entertaining and widely present in the internet, it has been debunked by its author: http://www.sigwom.com/?page_id=57.

Note from the Author or Editor:
In printed edition, p. 209: The story in question consists of two paragraphs in left-hand column. * Remove "a frustrated" from first paragraph and replace with "an". * Replace second paragraph (starts with "The joke datasheet...") with: The joke datasheet caught on. According to some sources it was a hit with marketing at Signetics, and even made it into the databook. Some customers also liked it and a few apparently attempted to order the part as a joke. The story of how the 25120 Write-Only Memory datasheet evolved into its current apocryphal form is also interesting. You can read more about it at http://www.sigwom.com.

Daniel Quadros  Feb 24, 2015  Apr 10, 2015
ePub
Page 346
Section headed "RS-232"

Suggest adding something about MCUs and other modules that use RS-232 but with TTL level voltages (e.g. Common with Arduino boards and shields) and how this is convenient but prone to smoke if the two are mixed.

Note from the Author or Editor:
Modified by author

Tim  Jun 26, 2014  Mar 10, 2015
ePub
Page 349
2nd para after Figure 14-14

Suggest inserting ", including start, stop and parity bits" after "baud, which is the number of bits per second”. This might prevent the reader inferring that "bits per second" means "data bits" and to make the important distinction between baud and data bits per second, preparing them for the next para, which adds detail to that concept.

Note from the Author or Editor:
Modified by author

Tim  Jun 26, 2014  Mar 10, 2015
ePub
Page 353
"DTE and DCE"

1. Suggest changing "does not refer to" to "does not necessarily refer to". 2. From the sentences "The DCE devices provide the channel between the endpoints using some type of communications medium. For a system using modems this would typically be a telephone line.” it is not clear whether the DCE is the modem or the telephone in this example, though it reads as if the DCE is the telephone line whereas (my understanding is that) the modem is the DCE.

Note from the Author or Editor:
Modified by author

Tim  Jun 26, 2014  Mar 10, 2015
ePub
Page 354
Para before Figure 14-18

"“It does not show how the handshake lines would need to be connected.” made this reader wonder why not? Suggest adding a forward reference to the subsequent treatment of this.

Note from the Author or Editor:
Modified by author

Tim  Jun 26, 2014  Mar 10, 2015
ePub
Page 371

1st para after Fig. 7-32, last sentence. Word missing. "... earlier in the Crimped."

Note from the Author or Editor:
Fixed

Tim  Nov 10, 2014  Mar 10, 2015
ePub
Page 377
Table 7-3. USB connector types

The images of the USB connectors are too small to recognise or distinguish.

Note from the Author or Editor:
See QC3 review copy Scale up images in table

Tim  Nov 10, 2014  Mar 10, 2015
ePub
Page 393
Table 14-19 and surrounds

(This is an enhancement suggestion, not an error, so if the development process is beyond enhancement suggestions, please ignore!) Given that outside of the Americas, the ISM 433MHz band is commonly used instead of 902MHz for remote controls etc., it might be helpful to include it in Table 14-19 and perhaps add a column that qualifies the region to which each row applies? For example, when ordering one of those simple ASK/OOK rx/tx modules, a choice of 433/434MHz, and 315MHz are available. A novice reader may appreciate a hint as to why they would choose one over the other. And/or, a reference to somewhere that sets out the regions and the bands (e.g. http://en.wikipedia.org/wiki/ISM_band) could assist.

Note from the Author or Editor:
Excellent suggestion. Author will revise as appropriate.

Tim  Jun 23, 2014  Mar 10, 2015
PDF
Page 401
2nd paragraph / Fig A-3

Even if R1 and R2 are the same value, the voltage at point A will not be one half of the supply voltage (unless R3 is infinite). The equivalent resistance of R2/R3/R4/R5 will be less than R2. If R1 and R2 are the same value, the voltage at point A will be less than one half of the supply voltage.

Note from the Author or Editor:
Well, yes, but that wasn't really the point of the illustration. Without knowing what the equivalent resistance for R3, R4, and R5 works out to be, it's not possible to know what exactly to expect at the junction of R1 and R2, but it is correct to assume that it will be less than Vcc/2. Replace the figure (A-3) with new one with WAG for DMM voltage.

Daniel Quadros  Mar 16, 2015  Apr 10, 2015
PDF, Mobi
Page 444
Last paragraph

Using a serial interface (I2C or SPI) reduces the pin count at the expense of conversion speed (as stated in the book) or of communication speed? While a low communication speed will indeed impact the number of samples you can read per second, I believe this should not affect the speed of conversion (as long as separated clocks are use for conversion and communication).

Note from the Author or Editor:
Printed edition, p. 309, 4th paragraph left-hand column: Replace the word "speed" with "rate" in the third sentence.

Daniel Quadros  Mar 05, 2015  Apr 10, 2015
ePub
Page 500
"Integrated Circuits" para. 1

Change "A typical integrated circuit is" to "A typical integrated circuit (IC) is" i.e. defined the acronym "IC" prior to its subsequent use as is done with other acronyms.

Note from the Author or Editor:
qc3 PDF, p. 248, 1st par sub-sec Integrated Circuits: change: "IC" to: "integrated circuit (IC)"

Tim  Dec 31, 2014  Mar 10, 2015
ePub
Page 568
para before Figure 12-5

Read literally "Heatshrink tubing is perfect for this" seems to recommend using heat shrink tube to make the (re)connections rather than to insulate them after e.g. soldering. Suggest rewording to make the purpose of the heat shrink clear.

Note from the Author or Editor:
qc3 PDF, p. 292, top of rt. col.: change: Heatshrink tubing is perfect for this. to: finished. Heatshrink tubing is perfect for insulting the reconnected wires (just remember to slide on a section of heatshrink before reconnecting and soldering the wires).

Tim  Dec 31, 2014  Feb 13, 2015
ePub
Page 581
"Simple One-Transistor Buffer" para.1

1.The term "saturate" has not been used previously and is not in the Glossary. 2. Suggest changing "close to zero" to "close to zero volts".

Note from the Author or Editor:
qc3 PDF, p. 298, 1st par in sub-sec "SIMPLE ONE-TRANSISTOR BUFFER": replace: (i.e., saturate, in this case) with: (i.e., saturate, or become fully conducting) insert "volts" after "zero" at end of same sentence.

Tim  Dec 31, 2014  Mar 10, 2015
ePub
Page 591
"Interfacing with an Analog World" para.1

Change "phenomena" (plural) to "phenomenon" (singular) for consistency with the remainder of this sentence.

Note from the Author or Editor:
qc3 PDF, p. 304, 1st par: change "phenomena" to "phenomenon"

Tim  Dec 31, 2014  Mar 10, 2015
ePub
Page 606
Ch.14 para.3

spelling: change "refridgerators" to "refrigerators"

Note from the Author or Editor:
qc3 PDF, p. 315, top of rt. col.: sp. change "refridgerators" to "refrigerators"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 658
"USB Endpoints and Pipes" para.1

Typo: change "bidrectional" to "bidirectional"

Note from the Author or Editor:
qc3 PDF, p. 345, 1st par in sect "USB ENDPOINTS AND PIPES": change "bidrectional" to "bidirectional"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 665
2nd para after Fig 14-30

Re "... 10BASE2 and 10BASE5 also appeared, referring to coaxial cables (10BASE2) and AUI (10BASE5) interfaces, respctively." ... In fact, both 10BASE2 and 10BASE5 used coaxial cable (of different spec's). With 10BASE5, "AUI" refers to the cable that connected the computer to the transceiver. Such a cable was necessary because the transceiver (MAU) was external to the computer, being large, heavy and very close to the coax cable so that the "vampire tap" could penetrate the coax. Perhaps something like this would work and still keep it simple? "... 10BASE2 and 10BASE5 also appeared, both using coaxial cables. 10BASE2 used thinner coaxial cable and BNC "tee" connectors to connect it to the computer whereas 10BASE5 used thicker coaxial cable and a separate cable from the computer to an external transceiver attached directed to the coaxial cable."

Note from the Author or Editor:
p. 349, 2nd par after fig 14-30 change from: also appeared, referring to coaxial cables (10BASE2) and AUI (10BASE5) interfaces, respctively. to: also appeared that referred to coaxial cable type interfaces.

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 666
first para after Fig 14-30

1. Actually, DIX came first (ref. Spurgeon&Zimmerman section "Reinventing Ethernet" para.2). 2. Fig 14-30 is not the original frame (that was DIX), it is the IEEE frame (same ref. Figure 4-1) (but it is indeed "still in widespread use").

Note from the Author or Editor:
p. 348 (qc3 PDF) 3rd sentence after fig 14-30 delete: ", or DIX Ethernet." Just end the sentence at "Ethernet II."

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 696
"Summary" para.3

Spelling: change "intermittant" to "intermittent"

Note from the Author or Editor:
qc3 PDF, p. 366, rt col, 2nd par: change "intermittant" to "intermittent"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 771
para.2 after Fig 17-7

Spelling: change "amplifiar" to "amplifier" (same error occurs elsewhere)

Note from the Author or Editor:
qc3 pdf, p. 404, 2nd par, right col: sp. change "amplifiar" to "amplifier"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 813
para before Fig A-11

fist circuit has five resistors, not four as stated in the text

Note from the Author or Editor:
change to "five"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 819
para before "AC Concepts"

missing word: change "in addition Thevenin" to "in addition to Thevenin"

Note from the Author or Editor:
qc3 pdf, p. 431, start of new par. in left col., 1st sentence: insert "to" between "addition" and "Thevenin"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 874
"Photodiodes" para.2

Typo: "when a photo strikes" probably should be "when a photon strikes"

Note from the Author or Editor:
change to "photon"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 878
2 paras after Fig A-54

Typo: "gain (of hfe)" probably should be "gain (or hfe)"

Note from the Author or Editor:
in qc3 PDF, p. 459, r. col., 2nd par, last sentence: should be: "or", not "of"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 891
"AC Ripple" para.2

Typo: change "The reason in the resistor" to "The reason is the resistor"

Note from the Author or Editor:
change "in" to "is"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 892
para after "POWER SUPPLY MYSTERY"

conjoined words: "powersupplies" probably should be "power supplies"

Note from the Author or Editor:
looks OK in qc3 PDF, but check for missing space in EOL wrap

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 896
"Appendix B..." para.2

typo: change "pictoral" to "pictorial"

Note from the Author or Editor:
sp. change to "pictorial"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 911
Section heading "XCicruit" (sic.)

change "XCicruit" to "XCircuit"

Note from the Author or Editor:
Change sub-section heading from XCicuit to XCircuit

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 913
para after Fig B-18

typo: change "langauge" to "language"

Note from the Author or Editor:
like it says, change to "language"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 920
Glossary entry for "digital multimeter (DMM)"

Since a DMM inputs analog signals and outputs using a digital display, shouldn't "DAC" be replaced with "ADC"?

Note from the Author or Editor:
Replace "DAC" with "ADC"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 924
Glossary entry for "forward bias"

Might just be me but I found the wording unclear - I think it is due to the word "once". Would following be correct and clearer? "The voltage potential applied to a sold-state P-N junction that will saturate the junction, resulting in current flow through the junction".

Note from the Author or Editor:
replace "once" with "when"

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 930
Glossary entry for "Microprocessor"

typo: "icrocontroller"

Note from the Author or Editor:
Already fixed

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 936
Glossary entry for "ripple"

suggest changing "dc" to "DC" for consistency

Note from the Author or Editor:
Already fixed

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 940
Glossary entry for "transformer"

missing word: change "Some transformers designed as" to "Some transformers are designed as"

Note from the Author or Editor:
Like it says, it needs an "are" in there

Tim  Jan 02, 2015  Mar 10, 2015
ePub
Page 954
"eBay" first para

I assume that "If you buy from overseas, I suggest buying from China" is intended for American readers, otherwise it discourages non-American readers from buying from the USA, which would seem to contradict numerous references to Sparkfun, Adafruit, etc. Perhaps this should be reworded?

Note from the Author or Editor:
p. 485 (QC3 PDF), section "eBay" Delete sentence: If you buy items from overseas, I suggest buying from China. Replace with: I have also had good results purchasing items from various vendors in China through both eBay and Amazon.

Tim  Jan 02, 2015  Feb 13, 2015