Errata

Encyclopedia of Electronic Components Volume 1

Errata for Encyclopedia of Electronic Components Volume 1

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.

The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.

Color Key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update

Version Location Description Submitted by Date submitted
Printed Page 12
Last paragraph

The calculation for the equation given seems to be incorrect.
The book states:
T = 20 * (4/(5 * 20)^1.2) = approximately 20 * 0.021.
0.42 hours or 25 minutes.

Unless it's VERY approximate...I'm getting 20 * 0.016 = 0.318 hours, or 19 minutes.

 Mary Willette  Feb 16, 2023 
Printed Page 145
Figure 17-5

I was confused by the polarity of the output capacitor in the schematic of the flyback DC-DC converter. Positive seems to go to negative. I reviewed some online sources and other printed sources that I have and I believe the capacitor orientation is correct, however the common ground/positive output are opposite from the input. i.e. flipped.

 Darrel Dronet  Oct 13, 2020 
Printed Page 164
Figure 20-3

I apologize for this one, it really feels like a nit-pick. But I have the hardest time understanding coil windings. It seems to me that the left side of the horse-shoe electromagnet has a top rotation that does not match the bottom output (unless a serious bend in the wire is hidden behind the post, Escher comes to mind).

 Darrel Dronet  Oct 13, 2020 
PDF Page 196
4rd paragraph

I think there is a mistake on page 196 of Encyclopedia of Electronic Components Vol.1 (pdf format):

"... If R is the RPM of a synchronous motor, f is the frequency of the AC current in Hz, and p is the number of poles per phase:
R = (120 * f) / p
This formula assumes 60Hz AC current. In nations where 50Hz AC is used, the number 120 should be replaced with the number 100"

This is not right. The number 120 (2*60) comes from the simple fact that one minute is equal to 60 seconds. This constant number shouldn't be replaced.

 Anonymous  Aug 24, 2022 
Printed Page 232
First line of 2nd column, immediately below header "Values"

There is already an errata for the line in question, but I think a continuation is in order. UJT appears to have been correctly changed to PUT (in the edition that I have). But my edition still references 'base 1' in the same line, for a PUT I believe that should be cathode.

 Darrel Dronet  Oct 19, 2020 
Printed Page 262
eleventh release Figure A-3, bottom right 2 schematics

the labels for the unijunction transistor and the programmable(PUT)
appear to be interchanged. the PUT is labeled unijunction and the
unijunction is labeled as a PUT

 Anonymous  Feb 26, 2022