07-11-2016, 11:31 AM
Discrepancy solved, managed to find an online copy of RDH3, the edition previous to RDH4, book page number 271 shows the same set of curves but the lower tangent is drawn a lot better, the 447 volts quoted (point C to D) now scales to a ruler measurement correctly, also note that Ib and Eb in RDH4 is shown as Ip and Ep in RDH3.
Link to RDH3:
http://www.tubebooks.org/Books/RDH3.pdf
Scan of the relevant page from RDH3:
Lawrence.
Link to RDH3:
http://www.tubebooks.org/Books/RDH3.pdf
Scan of the relevant page from RDH3:
Lawrence.
