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  1. ante1

    How to make an audio console's power supply better?

    Hi Nid, This might be interesting for you!? [attachment deleted by admin]
  2. ante1

    Outout of a transformer!

    It doesn’t matter where you get the voltage from; if you put 100VAC on the primary the secondary will have 12VAC.
  3. ante1

    Tektronix Sc501 Oscilloscope

    No need to put this here twice is there? ???
  4. ante1

    460V DC to 400V DC How?

    Hi boombar, I can’t see your schematics; I don’t know what’s wrong! :-\ But searching the internet I found a tube PSU article : I thought it might give some ideas! Tube_power.pdf
  5. ante1

    Outout of a transformer!

    Hi Shahriar, Maybe it’s just me but I don’t understand what you mean?? Please try to clarify and perhaps a sketch wouldn’t hurt.
  6. ante1

    460V DC to 400V DC How?

    Hi Decade, How much is “not much current”?
  7. ante1

    thyristors in series

    Hi Alun, It’s not only about damaging anything it is about having a reliable well working circuit too. ;)
  8. ante1

    Datasheet Archives

    Hi All, These links might be helpful searching for parts and datasheets. Some of them can be double posted but I am sure you will find new once too. Good Hunting! ;) http://www.findchips.com/avail http://62.236.156.23/ideaport/d/ http://www.alldatasheet.com/...
  9. ante1

    thyristors in series

    Yes, before any trigging! ;)
  10. ante1

    Voltage controlled mains lamp dimmer

    Hi Alun, No offence, this is just something to compare with! ;D Much more complicated! DC_cont._dim.pdf
  11. ante1

    460V DC to 400V DC How?

    Hi boombar, That’s 70W to burn away! Ouch 470VDC sounds dangerous  :o don’t you have AC nearby, it would be much easier. What are you going to use it for?
  12. ante1

    How to make an audio console's power supply better?

    Hi Nid, There are many places to study linear power supply techniques, on the web and in books. You can try Google or if you got the ARRL handbook (your library might) there is one good chapter (11 I think it is) about PSUs. I am sure there are hundreds more, if I find an e-book on this subject...
  13. ante1

    Low drop out voltage regulator with TL431 Problem!

    Hi Guys, I would also try a lower value resistor from (Vi) to pin3.
  14. ante1

    How to make an audio console's power supply better?

    Hi Nid, Ok, lets stay on the power plant then. ;D  I will make it easy for myself and tell you that the caps will reduce the noise produced in the diodes. The diodes make noise when constantly going from conducting to non-conducting state, higher load more noise. If you have access to an...
  15. ante1

    How to make an audio console's power supply better?

    Hi Nid, Yes, one cap in parallel with each diode and I use metallised polyester caps for this. Perhaps there are some better alternative but I know it works. I think you should consider Decade’s suggestion to put a couple of small quiet fans in the PSUs. In combination with new fresh 105C caps...
  16. ante1

    High Quality electronic sites

    Yes Doc, ham radio stuff spells electronics for sure! ;)
  17. ante1

    high/ low level indicator

    So.. there are mice inside the feed bins, I get it it’s a snake farm then! ;D
  18. ante1

    How to make an audio console's power supply better?

    Hi Nid, It might be the wrong expression but I consider the consumer end of the wires as the “load end”. A medium load could be what you normally have switched on when using the equipment; only you (the user) would know that. I don’t know the layout inside but do you think it is running cool or...
  19. ante1

    high/ low level indicator

    Hi Joe, Isn’t it possible to use simple mechanical pressure pads on the inside of the silo wall at the desired height/s?
  20. ante1

    7 segment displays

    If Steve hasn’t got a DSL connection he will have to start making the code for the Silicon Chip PIC to make that one work! ;D
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