Time to get this site upgraded, so we are passing the hat around. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html
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completely recapped it. Restored full vertical deflection. No I'm going through all the brightness, contrast, etc. Controls. Cleaning all contacts, disassembling them when necessary.
Those Nationals look about the most like lab test equipment when it comes to how they're put together. Very nice stuff - like to see the operating pics
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"When resistors increase in value, they're worthless"
-Dave G