This circuit is from American documentation from the 70s. This configuration appears in this section obtained from other sources. The signal is sinusoidal determined in amplitude by D1 and D2.
This power supply is protected from shorts in the load. The BD135 must be mounted on a heatsink...
This amplifier for audio transmission lines was found in a 1961 American publication. The critical...
The maximum frequency of the oscillator shown in figure 10 is on the order of 5 MHz, depending on the...