EMRFD Chapter 1 Errata.
(6 May 13, 22Jan17)
a major goof that showed up with the 3rd printing. Evidently
it happened at the printer. The error, which
is confined to Chapter 1, turns many italicized parts of the text
gibberish. A proper version of the text can be found at the
site by clicking here: http://www.arrl.org/notes/8799/
(17 April 09)
This problem appears to have been fixed
with the Classic EMRFD printing. (22jan2017)
p1.3, left col, very top: replace
"Reactance is little consequence..." with "Reactance
is of little consequence..." (9Dec03)
left col, 0.7 inches down from top of text: change
"viable" to "important" (26Mar03)
right col, 1.8 inches down from top of text: change
"know" to "known" (24Feb03)
p1.8, right col, 5.6 inches down from top of
text: change "a an inductor" to "an inductor" (24Feb03)
p1.11, middle col, 0.8 inch down from text
top. replace "indictor" with "indicator" (9Dec03)
p1.11, Fig. 1.16. In figure, fix
spelling. "Course" becomes "Coarse." New figure
shown below: (11June03)
left col, 2.2 inches down from text top. The 7812 has a
max I of 1 A and not 0.5 A. (16June03)
p 1.15, top of right column.
The word should
be "farads" rather than "Farads." (6May13)
p 1.16, caption for Fig 1.26.
should read: Fig 1.26 Dual range power meter.
The 4 W input uses the formula to calculate power in milliwatts.
50 mW range uses the curve of Fig 1.27.
p1.17, Fig 1.31. There is a missing
ground symbol in the figure. It should be:
column 3, 3.6 inches down from text top.
Replace the sentence "We measured L1 and set the value
that desired." with "The L-network
design (see section 3.6) produced values of 1.97 uH and 197
pF. We wound an inductor on a toroid and then
spreading or compressing turns slightly to produce the
desired value." (19Aug03)
modify Fig 1.33 to emphasize R1 discussed in text.
Fig 1.33. (same
left col, 1.8 inches up from bottom of text, should read
"...increase power by
about 10 dB to ..." (26Mar03)
1.19, left col, 3.1 inch up from text bottom. Replace
"head sink" with "heat sink" (15Jan10).
p1.19 and 1.21, Fig
1.35 and Fig 1.39. Change Q5 from the
discontinued 2N5321 to a MJE181. Mount transistor
with an insulated spacer so circuit board serves as a heat
sink. (Note: The board
alone was not an adequate heat sink and the transistor
increase in temperature. It was good enough for
A small heat sink would be useful. Efficiency is
worse with the MJE181 than it was with the 2N5321.)
Fig 1.40. Pin 6 of
the 555 IC should be connected to pin 2. Hence,
p1.23, Ref. 1. This should read: W. Hayward and D.
DeMaw, Solid State Design for the Radio Amateur,