  It has been found that some text-books show LC-oscillators that may not work
as assumed. Thus, the typical example showing a LC-oscillator driven by a
voltage operational-amplifier is simply wrong. The difficulty stems from the
fact that such oscillators are normally built to work with transconductance-
not with voltage-amplifiers. Such a difficulty however, can be readily solved
by connecting a resistor in series with the so-called frequency-determining
network.
