Re: Tektronix 465B Scope - Some problems.
Shorting the plates will determine whether it is deflection of the beam or whether it's a focus problem. Only one pair need be shorted, because if it's noise ingress, shorting the Y plates will reduce the fuzziness in the Y dimension and should leave a horizontal line.
I've seen a lot of CRTs with internal damage due to shock... all deliberate! There's a military shock test that involves a controlled drop, and virtually no electrostatic deflection CRT can pass it. The mass and cantilevered support of the deflection plates is a weak point. Protecting scopes from knocks is a very good idea.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
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