Using the integrated circuit 723 we found this power supply in an article in the magazine Radio Electronics from August 1971. The transistor may be a BD136 equipped with a heat sink.
The coil L2 has 64 turns of wire 28 or thinner wire in a 1 cm form coreless and L1 10 turns on L2....
This circuit is from a 1967 publication. It is possible to power a fluorescent lamp from a 12 V...
This simple circuit converts RGB signals into composite video and can be used as a shield in...