This circuit was found in Radio Electronics magazine from August 1966. The transistors are from the time and the power supply from the power grid is included.
August 2016 - It can be obtained from Mouser Electronics the battery protectors series bq7790x of...
We found this circuit in the ON Semiconductor Thyristor Manual although similar configuration can be found...
Published in 1988 in Hands-On Electronics, this circuit converts the 12 V of a battery into 120 V...