Intruder on the bridge tells the story of Captain Dyce, a skilled galactic union officer in command of the Ventura, the largest spaceship ever built. Dyce will have to investigate the death of his brother, killed by a mysterious plot that seems to come f
Thyristor timer for intruder alarm systems - has supply thyristor blocked by capacitor and turned on by touchA main thyristor (1) connects the load (2) to the supply (S). The thyristor is bridged by the series combination of a timing capacitor (3) and a discharge resistor (5). The ...