On Wed, Feb 14, 2024 at 02:44 AM, Don - AC2EV wrote: "Nope. The low serial number has a different layout of the front panel. The calibration bar is shifted to the right. On mine, it is dead center in the middle..."
Don,
Could it be that you are comparing the 465 to the 465B?
I have both high and low serial number 456Bs and the calibration bar on both is under the center of the CRT.
However, the 465 front panel layout places the cal bar to the right of the CRT under the horizontal display push buttons.
Cheers,
Tom
Tom Phillips