This is the factory setting (National Semiconductor) of the TDA2006 as an audio amplifier. The circuit works with 24 V and the diodes can be 1N4148.
This circuit is used to test capacitors with a working voltage above 150 V, detecting shorts or...
The circuit shown is used to reset TTL logic when power is established. The circuit uses a 7413...
This circuit was obtained in a Motorola manual from the 70s. The integrated circuit is from that...