nº979

 

Alternative dimmer without capacitors and trigger diode; 2 power control ranges: 25%-50% and 50%-100%; supply 230Vac/50Hz

nº978

 

Light activated red led astable multivibrator can be triggered at long distance by laser beam, supply 1xLi-ion cell

nº977

Breathing knight rider sequencer, 10 leds, 3 transistors, supply 12V