This Power supply sources from 500 to 1,000 mA according the transformar and was found in a publication of the year 1958. The diodes can be now the 1N4004 and the transistor should be mounted on a heatsink.
The circuit shown is from the 1994 Linear Applications Handbook from National Semiconductor. The...
The integrated circuits used in this CMOS astable can be either 4011 or 4001, although 4001 is...
This circuit is from a Mallory 1968’s documentation. The integrated circuit is of the time and the...