This Schmitt optical trigger with LDR was found in old documentation. The relay must be sensitive, or an additional step must be used to trigger it.
This powerful source is indicated for FM transmitters above 2 W. It provides 18.2 V of output with...
This simple circuit is designed to charger AA or AAA Nicad batteries. Current can be changed...
This amplifier uses hybrid modules Sanken and can provide powers of 10 W or 20, depending on the...