This inverter circuit for small 4 W fluorescent lamps was found in the December 1996 issue of Electronics Now magazine. The 110 x 6 V transformer is with 50 or 100 mA.
This circuit makes use of an operational amplifier from the 80's. The circuit can be implemented with...
When the power is cut off, this circuit keeps the flashlight on for a while, allowing it to be...
Using the CK722 this directional photometer was published in Radio Electronics magazine in July...