2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/87266It 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.6 pages, 5 figures. Submitted to iop's physics educationPhysics EducationPopular Physicstext