Level Indicator (CB4890E)

This 3-step level indicator uses only passive components. LEDs are common and trimpots can be 4k7 which a current commercial value.

TPS7A87 Dual LDO Regulator (COM122E)
September 2016 - Mouser Electronics has announced the availability of the new regulators LDO from...
700 mW amplifier with LM386 (CB966E)
This is one of the many versions of amplifiers with LM386. This was achieved in an old publication (1981). The...
Simple Timer (CB4333E)
With a 1 500 uFcapacitor this timer can reach times up to one hour. The capacitor must be of good...