This amplifier is from Motorola documentation from the 70s. The circuit uses transistors from the time, which are not common today, such as the SE7005 or 2N3916 at the output.
This circuit generates a linear triangular signal whose frequency is determined by C1. Transistors...
This circuit is from an ancient American documentation. The T-Bridge circuit determines the...
Two LEDs are used in this TTL circuit. Frequency is given by C1 and C2. Power supply must be a 5 V...