In this charger the current is limited by the incandescent lamp. Lamps from 40 to 100 W can be used and even connected in parallel, depending on the load.
This circuit is from the 1974 Motorola Unijunction Trigger Circuits for Gated Thyristor. The triac...
This frequency-corrected 1 kHz circuit has a nearly perfect rectangular signal. The circuit is...
May 2017 - This new Ricoh 4 A current device is now available from Mouser Electronics. The device...