sible; that even the ideal case, mag amp operating point is outside the gai n/phase for oscillation. I didn't look up the ref though.
how is that possible? If you have gain you only need add R&C to get time sh ift aka phase shift.
hat the first oscillators had to wait for vacuum tubes, since even though m ag amps existed earlier, oscillators weren't possible. (But even Faraday c oulda made one, if he had Nyle Steiner's burned zinc oscillator.)
arc oscillators came before vacuum tubes, relying on negative reistance. 's inging arc.' Not to be confused with spark gap technology. And fwiw there w ere also electromechanical oscillators such as bells, relays, etc well befo re valves.
while "impossible" means that no hobbyist has succeeded, ever.
saturable reactors?
Inductor rectifiers were one of the standard types in the early days of rad io
rters, and why were selenium or copper-oxide rectifiers such a big deal?
inductor rectifiers were a relatively reliable tech, but had poor sensitivi ty. How would you get mere millivolts to cause a significant shift in an in ductor's operating point.
NT