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Fuse for Tek 465M

Discussion in 'Electronic Repair' started by Jose I. Villaverde, Aug 22, 2003.

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  1. Hello:

    I have bought a Tek 465M from ebay. The scope seem to be in good condition,
    an was calibrated on 29/08/2002 (it has 7 days calibrated :).

    On the back side it sais 115 volts only, but it has a switch so you can set
    it to 220v. I suppose that message is only because it has a fuse to work
    with 115v (1A fuse), but if i chage it to a 0.5A fuse it should work...
    right?. So what kind of fuse needs? A normal fast one? or need something
    special?


    One more thing. I have not the manual, any place where i can get it free?
    O:)

    Thanks in advance
     
  2. Jerry G.

    Jerry G. Guest

    You need a 1 amp fast blow from what I can remember. It is about 20
    years since I have worked with a 465.

    Another thing is that at 120 V the scope will pull 2 times the amount of
    amperes as at 220 V. The power consumption in wattage should be the
    same. If the fuse is on the AC side, it will have to be double the
    ampere rating at 120 V to be okay.

    If you really want to be sure, did you get the user book with the scope?

    --

    Greetings,

    Jerry Greenberg GLG Technologies GLG
    ==============================================
    WebPage http://www.zoom-one.com
    Electronics http://www.zoom-one.com/electron.htm
    Instruments http://www.zoom-one.com/glgtech.htm
    ==============================================
    Hello:

    I have bought a Tek 465M from ebay. The scope seem to be in good
    condition,
    an was calibrated on 29/08/2002 (it has 7 days calibrated :).

    On the back side it sais 115 volts only, but it has a switch so you can
    set
    it to 220v. I suppose that message is only because it has a fuse to work
    with 115v (1A fuse), but if i chage it to a 0.5A fuse it should work...
    right?. So what kind of fuse needs? A normal fast one? or need something
    special?


    One more thing. I have not the manual, any place where i can get it
    free?
    O:)

    Thanks in advance
     
  3. Hello:

    The scope has (when arribed) an 1A Fuse and was set to work with 220v, but
    in the back cover sais:
    1A Fuse => 115v
    0.5A Fuse => 230v
    So i think the scope was working at 115v, and when the seller test it, it
    just change the voltage switch, without changing the fuse.
    The problem was what kind of fuse to install, but as you have said i
    installed a 0.5A Fast fuse, an everything works fine... :)))
    Nope, It comes with cover, main lead, probes, but no manuals... :´-(. Do you
    know where i can get a service manual for a tek 465M?

    Thanks


    JIV
     
  4. Tweetldee

    Tweetldee Guest

    Manuals for the 465 scope are available pretty cheap on Ebay. They are
    available on CDROM from several sellers, also from a few internet vendors.
    Cheers!!
    --
    Tweetldee
    Tweetldee at att dot net (Just subsitute the appropriate characters in the
    address)

    Time is what keeps everything from happening all at once.
     
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