Quote:
Originally Posted by jshorva65
The next unusual scope pictured here was known as the Kingston Absorption Analyzer, which used a capacitive pickup device as its probe. A turret-type TV tuner inside the unit allowed for restricting the instrument's passband to selectable presets. Looks like a roundie color set is being serviced in the pic.
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During one of my at-least-once-weekly in-person tech-talk sessions with Big Dave since he's moved back into Warren from Columbus, he and I solved the question of conclusively identifying the color roundie pictured with the Kingston Absorption Analyzer scope in my post above. It's an Admiral model 29AZ1. We identified it by examining cabinet rear view photos in Sams documentation for several early color sets, by searching for the color-coded folders in my Sams library (since Sams used pink folders to identify color sets during that era) until we found the one whose cabinet rear view matched the pic.
Regarding old scopes, I'm still using that Tek 547 or the 475 depending upon the features needed for accomplishing a particular task, but I've also started using an 80s-era B&K scope (due to super-small size and weight and very sharp and bright trace) for projects requiring an ultra-portable unit and where a general-purpose recurrent-sweep scope of about 5 MHz bandwidth is adequate. It's especially handy for RF/IF alignments where its tiny size allows placing the scope in the most convenient position to allow viewing changes to a response curve while keeping the area of the chassis where I'm working well within my field of vision.