Re: Old Tektronix Books

treasurer@...
 

Someone in my copy of Typical Scope Circuitry ( Third printing October 1966 revision - forth printing 1968 ) has neatly indicated the scope models on the schematics. Figure 12-20 is marked 531 CRT circuit which agrees with the manual. Figure 12-16 is 531A & 545A. 11-3 is marked 531A. Figure 11-8 is 531A & 545A. 11-12 is 531A & 545A. I didn't verify the A scope versions. The spine of the book has the squared CRT in the logo whilst the front page has the round CRT in logo. When did they begin using the new logo?
Bruce

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