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  1. C

    Battery powered device question

    "a 9V battery may give more voltage but its current capability is so much less only ~ 300 mA" It's not the mA but the mAHr that is important.
  2. C

    how to use pickit3.5

    What are you trying to do?
  3. C

    0/1-10V dimming problem

    Just do as I say with the 8v - 9v battery
  4. C

    0/1-10V dimming problem

    Use the Chinese version. I don't like the German version.
  5. C

    Battery powered device question

    Using a regulator will WASTE just as much energy, not matter how you configure it. Just get 3 x AAA cells and connect it directly to the device, making sure you have the polarity correct. You can add a diode in one lead if you are not sure about the polarity and then remove it. The device may...
  6. C

    0/1-10V dimming problem

    Get a set of cells for 8v. Connect 470R to each lead and take the positive to the blue terminal and negative to the white terminal.
  7. C

    Heating Element Problem

    Yes. Because it looks like a leakage problem.
  8. C

    Heating Element Problem

    Just use the active and neutral
  9. C

    Capacitor help

    It may be underload and hunting.
  10. C

    230v Transformer, 115v input.

    "may not be able to deliver its rated current to the secondary windings." I do not see why not.
  11. C

    Charging a 450v 6800uF DC capacitor

    put a 10 kΩ, 20 watt, power resistor in series The resistor needs to be 5 watt, because it is only half-wave charging and the current will drop from (35mA) 17mA to near zero, in 2 x 145secs.
  12. C

    Capacitor help

    It's not what we call a power supply problem. It sounds like an overload. What type of TV is it?
  13. C

    Capacitor help

    You have to listen to the speaker to work out if it is electronic or mechanical. You didn't say it was tripping immediately: You said: and will eventually shut off until it cools down. You MUST be completely accurate if you intend to become electronic.
  14. C

    transformer identification from Crosley director model CR2405C stereo

    What is wrong with the transformer?
  15. C

    Repair ionization wires on Ionic Breeze Quadra S 1637 air cleaner

    I would try nichrome wire from a heater or globe
  16. C

    Capacitor help

    Turn the sound down and listen to the speaker. Do you hear a hum?
  17. C

    Creating a latch circuit with logic gates

    Here is the thing already done, simply: http://forum.allaboutcircuits.com/threads/flip-flop-combo-lock-reset.64169/
  18. C

    alert about distance between 2 objects

    You can buy a simple "child alert" that buzzes when the distance is a set distance.
  19. C

    Building an Audio Amplifier

    Here's a stereo amp 3watt 3watt class D $1.00 post free !!!!!!!!!!!!!!! http://www.ebay.com/itm/Terrific-Digital-DC-5V-Amplifier-Board-Class-D-2-3W-USB-PAM8403-Audio-Module-FM-/291337551133?pt=LH_DefaultDomain_2&hash=item43d5123d1d
  20. C

    Momentary Buzzer

    You just need a 5v buzzer and an electrolytic and a diode and resistor.
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