We found this circuit in a 90s 73 magazine for radio amateurs. The circuit has 3 W of power and can use modern equivalent MOSFETs.
Yes, tunnel diodes can also be used in voltage regulators, as shown in this circuit from a Radio...
The gain of this circuit at 1 kHz [and 40 dB falling rapidly when the frequency deviates from this...
A frequency of up to a few kilohertz can be obtained with this oscillator. The frequency is given...