Hi Steve, Looks like your email address and the version that uses "at" and "dot" aren't the same. Is that a typo? Thanks, Barry - N4BUQ

Bill, Since this is so far off-topic, please feel free to contact me off-list: sonodocsch@... If this gets blocked, it is sonodoc at gmail dot com. My interest in guidance and nav stuff is

No direct experience, but looks like a conductive ink was used. Perhaps this, or something similar would work: https://www.tierney.com/products/circuit-scribe-conductive-pen/ _Dave KC6UPS

For decades I have taken equipment that was discarded in disgust or stored horribly and restoring it to operation. Initially, it was because of poverty, now I get great enjoyment from rescuing it from

Is the F-111 Nav computer part of the INS system? Also the Navy boxes might be part of an INS system. I worked at Litton in SLC back in the 70's & worked on the Analog INS as well as the digital. The

This might be a redundant suggestion but have the basic power supply checks been done? Do you have a service manual? --Toby

Have you read the full description of this guy's scope?"i plugged it in but it started smoking (white smoke) so i turned it off""i will take the side panel off tomorrow and take some pictures"Those

I did hear a story a few years ago about a 500 series scope that was partially melted in one of the big north bay fires (2014 or 2016?), but no pictures.  (Also, it may not even have been a Tek; it

I'd like to try to drag this thread back on topic, however: I can't believe that my dirty 475 is the worst scope that anybody has seen. Somebody has to have better stories, at least, whether or not

https://groups.io/g/TekScopes/album?id=257176

I am not sure if I am doing this the correct way. I have three Tektronix scopes. I have a Tektronix 533 scope that there is no trace. I have a Tektronix 7704A, and the intensity is very very bright,

Dave, That this is the amount of ripple current the cap can take to make the lifetime spec? YES A spec with twice the ripple for a given lifetime can take more power supply noise? YES A

Steve, The museum also has a non Facebook web page, https://www.mact.io/ Once Covid is a bit more under control, the museum will be resuming in person tours. Matt Chief Technician LSSM

Raymond Domp Frank wrote: That's fascinating. I might need to add the 466 to my wish list as well. The computers that my father worked with in the late 70s had memory cycle times of 330 ns - 990 ns,

I get the Captcha nearly every time, and sometimes the spot-the-traffic-light game as well. They also keep enabling fast login on my iPad or computer when I don't want it, and there is no apparent way

That's not the worst... ask Mike how he got his first tek...

Hi Jeff, I clearly recall using a brand new 475 at my work place some forty years ago, on which delay timer pot was not set to zero, it was set at 0.20. I don't exactly know why, but perhaps it

Hi Jeff, See my embedded responses. I've sometimes wondered what the technical differences between the central modules of 455 and the 465M were but didn't bother to investigate. I only have a 455,

Raymon, Yes, I saw your comments, and I agree with every one of them. I was making compromises for brevity (and personal bias). Since I had linked to the TekWiki page I figured that any

Has anyone mentioned these folks? Large Scale Systems Museum https://www.facebook.com/lssmuseum/ They are located near Pittsburgh. I visited them a couple of years ago and they have an amazing