This flasher circuit consists of an astable multivibrator with the frequencies given by the capacitors. The circuit is from 1965 using light bulbs, but LEDs can be used. Power comes from 4 batteries.
This TTL dice is from an old publication from 1978, but it can still be assembled, as the...
This precision signal rectifier was found in an Electronic Design. The components used are from...
We found this setting in the National Semiconductor Linear Applications Handbook. The base is an...