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  1. H

    digital multimeter sinclair dm 450

    no signs of damaged components no signs of damaged components
  2. H

    digital multimeter sinclair dm 450

    is dead is dead, does not turn any segment, I'm trying to copy the circuit
  3. H

    digital multimeter sinclair dm 450

    Thank you, yes I opened the box
  4. H

    digital multimeter sinclair dm 450

    I am Trying to repair an old Sinclair dm 450 digital multimeter I'm searching for the circuit Can anybody help? Regards Harry
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