Quote:
Originally Posted by TheAuger
The fault could be the E.H.T transformer some of these were prone to failure
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A 545 as early as this won't have that problem. It's only the instruments of the late 1960s (especially the 545B, 547 and 549) that suffer failed EHT transformers due to their epoxy potting. Earlier scopes don't use the epoxy potting and don't have this problem. Even my mid-60s 535A is OK.
Chris