Michael (and anyone else who wants to improve Tekwiki), Email me and I will make an account for you. The email address is at the bottom of the top-level main page: http://w140.com/tekwiki/#/media/File

Every instrument page on Tekwiki has a "Repairs" page associated with it. The link is near the upper left of the page. The intention is to provide a place for people to document repairs, maintenance i

Morris, Please contact me off-list at this address: http://w140.com/tekwiki/wiki/Main_Page#/media/File:Kurt_email.gif thanks, -Kurt

Also, maybe take a look at the Factory Calibration Procedure document, particularly the "Preliminary Inspection" section that starts on page 7. http://w140.com/tekwiki/images/e/e9/Tek_547_fcp.pdf

Yes, I am looking for actual photos of the instrument.

The Corona Electric FT-100A is a 500-series plug-in for plotting Ft of transistors. Does anyone have photos of this unit that they can share? thanks, -Kurt

http://w140.com/Tek_Transducer_Measurements.pdf

My reason for collecting scopes has nothing to do with providing my workbench with a working scope. For me, it's more similar to collecting classic cars, while driving a Prius.

http://w140.com/tekwiki/images/1/1c/Tek_565_irb.pdf

How electrically similar is the 3L10 to the 1L10? Components are numbered similarly. But clearly the circuits are different, at least at the output, since 560-series plug-ins must directly drive the C

See page 160 of this document: http://w140.com/tek_common_design_parts_catalog_transistors_diodes_and_misc_may_1988.pdf

Also, page see page 61 here: http://w140.com/tekwiki/images/0/0a/Tek_tube_aging.pdf

Also see page 91 in this doc: http://w140.com/tekwiki/images/1/14/157-_checked_and_tested_tubes_specs_and_procedure.pdf

The list of deflection-blanking scopes includes at least the following: 211, 212, 213, 214, 221, 305, 321, 323, 326, 422, 503, 504, 506, 527, 560, 561, 564, 565, 567, and 661. It eliminates the need f

Connecting the PG508 to the scope and the servo in parallel should be fine. I would connect it to the scope first to get the PWM voltage right, since the PG508 is capable of voltages outside of what m

Why do some instruments use dual-pole power switches while other instruments use single-pole? For example, the 564 uses a dual-pole power switch (interrupting neutral and hot) while the 547 uses a sin

http://w140.com/535_545_operators_handbook.pdf

I definitely agree about the high-ohm resistors in the CRT circuit. Whether or not they get replaced before first power-up, they should be on the suspect list. Also, the 0.001uF cap in parallel with t

I have no affiliation with this listing. https://dayton.craigslist.org/ele/d/free-tektronix-oscilloscope/6692811733.html

This 5B10N has a special blanking mode: https://www.ebay.com/itm/232916392120 Anybody know anything about it?