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  1. (*steve*)

    What Is Happening Here?

    There's something wrong there. What does it look like at lower volume settings?
  2. (*steve*)

    Radio Static

    My guess is that you are using a cheap 12v to 5v usb device. These have switchmode dc to dc converters inside. These are, as you've found out, very electrically noisy.
  3. (*steve*)

    Exit Visa music group who worote paradies of Saudi expat life

    It was (I think) on usenet in a forum which is mirrored here in read only form. Lots of people reading your post (hopefully). Hope you find the recordings. They sound cool.
  4. (*steve*)

    Exit Visa music group who worote paradies of Saudi expat life

    You win the prize for this month's most off-topic post. Congratulations on your post.
  5. (*steve*)

    Playing with valves

    The Russians are coming!!!!
  6. (*steve*)

    Wi-fi

    Does your device have an external antenna connection? This is the cheapest and often most reliable method. How did you damage the booster?
  7. (*steve*)

    Noob needs help with batteries

    The conventional way is to hit "reply" to the message.
  8. (*steve*)

    Designing Relaxation Oscillator

    Keep Calm And Design Oscillators
  9. (*steve*)

    Laminator for PCB's ?

    Its old, and built like a brick outhouse. You'd need to get one second hand. Its also A3 size (not that this is important).
  10. (*steve*)

    Laminator for PCB's ?

    I've just received an email from my colleague doing work on laminating PCBs. He says "get a Genius GNS-320N, it will save you heaps of time and effort."
  11. (*steve*)

    Creating logic AND gate with 2N222 Transistor

    At 1.3V +/- 0.1V do you get? The specified output voltage levels? The specified propagation delays? Operation over the specified range of power supply voltages and ambient temperatures?
  12. (*steve*)

    China mobile phone charger circuit

    It looks like a blocking oscillator with some fancy protection for the be junction of the transistor.
  13. (*steve*)

    Low voltage cutout help

    replace the relay with a LED and a resistor. That way you can check when power is being applied and removed. With the relay it's not quite so simple. I have a feeling it's always being powered (i.e. you have an error in your circuit)
  14. (*steve*)

    Replace IGBTs FF200R12KS4 with FF300R12KS

    How fast (I.e. Frequency) are you switching the load?
  15. (*steve*)

    Polarity diagrams:

    In theory, theory and practice are the same. In practice they aren't :D
  16. (*steve*)

    "Good" DMMs with bar-graphs - crippled by design?

    I was using one of my multimeters a day or ago to check a pot that seemed noisy. Watching the bar graph as I turned the shaft was far more useful that reading the displayed digits. Of course, it can sometimes help to fix the meter on a single range...
  17. (*steve*)

    Op amps with one or no supplies in schematics

    No, it shows each pin once. If there are 4 op amps in a package, there will only be 2 power supply pins shown. It's reasonable and understandable. Whether they decide to put both on one op-amp, or one each on 2 separate devices, it's all the same.
  18. (*steve*)

    choosing micro fo BLDC motor speed control

    Perhaps if you read what you quoted...
  19. (*steve*)

    Can CP2102 USB to UART be used to power 5V devices?

    Well, at least it's not harmed by 5V :-) Did you note this paragraph in the datasheet: Given that the pins are noted as having TTL inputs, it is entirely possible leaving an input open will cause it to float high. In any case, I don't see it's speced to have this pin left open.
  20. (*steve*)

    Can CP2102 USB to UART be used to power 5V devices?

    Is the device you're trying to talk to an ESP-12 board (aka ESP8266)?
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