This converter that allows high voltages to be obtained from batteries was found in Radio Electronics magazine from June 1959. The circuit uses a special transformer providing 9 to 18W of output.
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...