We found this circuit in a 1969 General Electric documentation. The circuit uses transistors of the time and the diodes in the dotted board must be mounted on the output transistor heatsinks.
The Variable Frequency Oscillator (VFO) shown in the figure can generate signals in a frequency range...
The 8038 is an integrated waveform generator (sinusoidal, triangular and rectangular) from...
This circuit was found in a 90s Popular Electronics. The integrated circuit used is uncommon...