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protech

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Posts posted by protech

  1. Hi

    Could anyone advise on the value this resisitor?

    It looks like it has failed as it is open circuit when testing
    it so I can not measure it's resisitance and i do not have any
    access to the circuit diagram.

    www.earthspike.com/jv.jpg

    The colours, which look fadded, seem to be:

    WHITE : BROWN : BROWN : RED : SILVER

    or it could be

    WHITE : ORANGE : ORANGE : RED : SILVER

    any ideas on what value it is so I can replace it?

    also does the colour of the resistor body (blue/green) have any significance?

    Cheers

  2. Hi,

    I am trying to find a PSU with the following outputs (or as near as practical).
    It is for an ECHO Audio Fire 12. The PSU in it has failed and I can't find an
    exact replacment for it. UMEC do have similar, but don't have this exact model.
    The PSU about an inch high as it goes in the ECHO unit (which is 1U). But
    I  would be happy for any recomendations of a PSU I can purchase that can
    supply these voltages?

    The spec states that it supplies the following.
    +18Vdc @ 0.3A
    +6.75Vdc @ 2A
    -18Vdc @ 0.3A

    Part number: UMEC UP0303S-0551

    Many thanks :)

    PT

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