This watch uses a liquid crystal display. The circuit is from the 80s and the module used is uncommon nowadays. Power is provided by a single cell.
July 2017 - Texas Instruments' new 3 A bq25601 single cell battery charger can be found on Mouser...
The presented circuit is based on an operational transconductance amplifier (OTA) having been...
This circuit generates high voltage for the firing of a xenon lamp. We found this configuration in a 1994...