This TTL circuit generates a 100 MHz signal for digital instruments. The CI is not easy to obtain, being of the high speed MECL type. The circuit is from a 1972 Motorola manual.
The CMOS 4046 integrated circuit is not very common today, consisting of a very efficient PLL for...
This circuit turns on an old cassette recorder when the telephone rings, thus enabling the...
This circuit can be used in panel signaling with common incandescent lamp. The lamp will flash at a...