This driver for audio signals using the TAA435 integrated circuit was found in Philips 1968 documentation. The integrated circuit is difficult to obtain today.
This circuit was obtained in a 1978 magazine, but it can be easily assembled. What the circuit does...
This circuit, which uses a planar silicon sensor, is from a 1964 Electronic Design. The component...
We found this logic level tester in a 1976 documentation. The circuit is powered by the voltage of the...