Help with Heathkit IO-4510 O scope

Murray Grandy mgrandy at TELUS.NET
Mon Sep 29 13:04:35 EDT 2003


Recently purchased subject scope. The 3000 volt section is not working.
There are three diodes that form a voltage Tripler, I guess. All three
diodes test open. The Heath part number is 57-56. When I check this number
on NTE cross, I am not sure that it is the same diode. Also, in the parts
list under description the diode is called SCM30. This number on NTE is
nothing like the 57-56. I have the Heath MPL but, this 57-56 is not listed.
Can anyone help with this.
Murray
PS. Also may need 3, .015 3KV capacitors.


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