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 is from 1968, but we can use a modern one like the 741. The symmetrical power supply...
This circuit is from an old Mullard (Philips) documentation on the 555. The circuit uses a pair of...
This configuration makes use of an LM3900 transconductance operational amplifier. The transistor can...