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  1. ante1

    Making an electric furnace.

    Dazza, To be or not to be, that
  2. ante1

    Need help on a project changing the strength of water of shower.

    I haven
  3. ante1

    How to tell if an old electrolytic cap is good

    Hi Audioguru, I remember many years ago Philips small blue caps had low quality rubber seals!? 8)
  4. ante1

    HV power supply

    Alun, radha, A microwave transformer will do fine if you can settle for less current.
  5. ante1

    Making an electric furnace.

    Hi Dazza, As long as you use those yellow and green wires (I presume that
  6. ante1

    HV power supply

    radha, High voltage in itself is not dangerous but when there is some current involved it sure will be. If you are careful when experimenting with this you will live to tell about it! ;D
  7. ante1

    How to tell if an old electrolytic cap is good

    The number one reason for electrolytic caps to fail is heat, at least this is my experience. I have changed a number of bad caps and all of them have been in a high temperature environment. Broken switch mode power supplys is one place where I often have encountered bad caps and I always replace...
  8. ante1

    Need help in fixing lexmark printer

    Well a 7812 is very easy to test, just put the neg lead to pin two and the pos to pin three. If you get 12.0V its ok if not its broken. To check the input voltage (which have to be present) just move the positive lead to pin one, here should be at least 15V and maximum 35V for the regulator to work.
  9. ante1

    Need help on a project changing the strength of water of shower.

    Hi zgnoh, There are two ways to go with this I guess. One is to start with pressurised water (what you normally have in the pipes) and try to control this with a valve. The second is to try controlling a pump to change the pressure fast enough to follow the music. I am not sure how this will...
  10. ante1

    Need help in fixing lexmark printer

    Hi felto, I like to help you but I need the schematic for the circuit board. The problem is probably in the power supply section but without some documentation I am lost here.
  11. ante1

    Relatively new, looking for some basic answers.

    Kevin, The question was: But does it require a stronger current being applied in order to step up the power of the existing current, or can it only use one power source, and multiply it? If so, can you explain how? Can you please answer it!
  12. ante1

    Making an electric furnace.

    Hi Dazza, Sorry I missed your last post; I suppose you have worked out the marking on the caps by now. You can
  13. ante1

    HV power supply

    Hi radha, Welcome to this forum. Dangerous things 2000V @ 1.5A, what is it suppose to power? A linear RF amplifier maybe? Do you need a stabilized voltage and ripple free? Can you post the circuit I am not familiar with the Crockroft-Walton circuit?
  14. ante1

    pressure sensor help...

    warhorst, Do you mean to use the water as a conductor?
  15. ante1

    Volume

    Hi, You need a preamplifier to control the volume.
  16. ante1

    Subject Line Descriptions

    MP, I agree this seems to be an escalating problem. I try to read all the posts but sometimes I regret opening some of them when I see the contents. A limited
  17. ante1

    LM78XX & LM79XX questions

    Well that
  18. ante1

    pressure sensor help...

    Hi warhorst, It sounds like you need a sonar system. 8)
  19. ante1

    Use a battery while charging it.

    If the battery type requires constant current charge it won
  20. ante1

    LM78XX & LM79XX questions

    Not everyone can afford to buy the latest at the same pace as the manufacturer develops new stuff. But if you are careful you can change the caps on your motherboard, they are just about the only thing possible to change yourself.
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