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  1. S

    ESP8266 regulator with 220v

    better yet, a 3.3v plug pack
  2. S

    help rewiring a electric fan switch to a alarm clock?

    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...
  3. S

    PS4 lag...tried every fix I could find...PLEASE HELP!!

    in my area, there are 4g unlimited monthly for like $60 a month. i don't know how well they cover the region though.
  4. S

    PS4 lag...tried every fix I could find...PLEASE HELP!!

    try using 4g internet, tethering is supported on most android phones.
  5. S

    What size Capacitor do I need ?

    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...
  6. S

    PS4 lag...tried every fix I could find...PLEASE HELP!!

    geez, how can you live with that internet?
  7. S

    PS4 lag...tried every fix I could find...PLEASE HELP!!

    You're on dish internet? try switching to cable, if it is available, as my pings were very similare to arous1973's. I am also on landline.
  8. S

    Stability of voltage regulators

    thank you for your explanation, can you elaborate a little more on the part that you said about the fly back voltages, or lead me to some reference?
  9. S

    CNC Laser any advices?

    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...
  10. S

    Stability of voltage regulators

    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...
  11. S

    Stability of voltage regulators

    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...
  12. S

    Cheapest tool to measure Total Harmonic Distortion

    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.
  13. S

    Experts Only: Tesla coil

    Electroboom is fing hilarious anyways, the switch kind of acts like an oscillator, so yeah there is an oscillator.
  14. S

    CNC Laser any advices?

    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.
  15. S

    Stability of voltage regulators

    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
  16. S

    transistor pairing? or not?

    i am basing my design off of other peoples. i have decent knowledge, and quite some soldering and pcb experience. I don't have the budget to buy 1000 transistors just to pair it, i will probably buy paired transistors, so i don't need really high end test equipment. Even though people have...
  17. S

    transistor pairing? or not?

    thanks for your link why can't you just adjust the gain on Rgn1 and Rgn2? isn't it there for that reason?
  18. LM4702 ultra hifi audio amplifier

    LM4702 ultra hifi audio amplifier

    i'm still in high school, so don't expect much progress on this as i have a limited budget so i'm making a hi-fi amp. i was browsing around digi key and i came across a lme49811 chip. i found out that the highs aren't really good, so i did more poking around digi key. then found this this...
  19. S

    LM4702 ultra hifi audio amplifier

    swagguy8 submitted a new Showcase Item: LM4702 ultra hifi audio amplifier Read more about this showcase item here...
  20. S

    transistor pairing? or not?

    i'll probably use paired transistors, as it will cost at least 5 dollars more. thanks guys!
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