how long do you want the fan to run for? Forever? 10 minutes? If you want it to run forever, you could do the microphone circuit as bluejets mentioned, or if you don't want the sound, you could cut the speaker wires, and rewire onto a transistor circuit that controls the power to the fan. I...
why don't you just get an arduino, have some relay circuit that shuts off after ignition is turned off after 5 minutes? you wire the computer directly to the battery, the arduino detects ignition on/off thus controlling a relay powering the pc on or off. and you could also wire the switch of the...
to be hones i think you're better off with a water or drill bit cutting head rather than a laser, it will get quite expensive with a laser if you want to cut metal.i'm sure there are tons of google articles out there that'll tell you the wattage you'll need, if you want to pursue this path for...
Don't worry, only a pair of NE5532s. and i have other capacitors that are less expensive ones before it, and they are rated @ 25v. i just want a cleaner signal, by getting rid of the fine residue with a lelon. I might considering not putting the lelon there, but i might just put it there and...
i see where you're coming from, but i see big tech companies like hp and dell use 25v capacitors for their 20v power supplies all the time (i've opened up their power supplys). They also have a regulated circuit. Is 2 times the original really necassary, after it is linearly regulated. I know...
the soundcard scope works very well, i have used it myself before. just remember to calibrate it, also remember to use a voltage divider, as it will damage the pc if anything over line voltage ( around 2.5v) is used.
umm, i'm not very experienced at this, but i heard that they sell straight laser head replacements for retail cnc machines. do a search and i'm sure you'll find a variety of choices.
Hey guys
is it safe to put a 16v rated capacitor behind (to the output) of a 7815/7915 dual supply regulator? I have some lelons laying around that i want to use for the a hifi project. will the capacitors blow, or is the regulator stable enough to be at a constant 15v?
thanks