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oscilliscope crt question

Discussion in 'Troubleshooting and Repair' started by Velliger, Dec 21, 2016.

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  1. Velliger


    Aug 30, 2016
    My Tek 2245 powers up, no faults, but the crt is dark. It displays the readout info alright and beam display works when pressed. There is a random blip but no trace. Any observations?
  2. 73's de Edd

    73's de Edd

    Aug 21, 2015
    Do you have any " rug rat " presences . . . accessible to that unit ?

    VERY heavy suspicion of mode and triggering set up

    Jury rig this set up and see if it will pass this self test :


    DAMN . . .Sam . . . look up above and I am seeing a self portrait . . .excepting the fact that I am always wearing a shirt . . .

    73s de Edd

    Last edited: Dec 22, 2016
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