[FightCube] wrote in recommending a very helpful piece of circuit simulation software for those of you still constructing entries for the 555 design contest. LTSpiceIV, available from Linear ...

[Brett] over at FightCube was tossing around ideas to build a screaming prank circuit that fits inside ... It’s similar to [Dino’s] in that it uses a 555 timer in astable mode, triggered ...