开云体育

Yes and sadly... much the same experience here too. First they put it in storage, in the lab, for a decade... next they put it in storage somewhere else for a decade... next and eventually, someone

Hi John, Tunnel Diodes can be checked on a curve tracer. I will send you some resources off list in a separate E-mail. Some others here have reported that you can have a "Good" TD that is NOT GOOD at

Yes, but of course it depends in what and how other components are connected to the TD. You will get more to the point replies when you mention the type of scope and the TD number in the schematics.

Many older TEK scopes (465-475 for example) use a socketed tunnel diode. They may at first appear to be soldered, however, TEK used those miniature solder in sockets in those board locations. Same

Yes... I can say the experience here (were not in CONUS) was quite similar. Bio guys used to be a bunch with lots of sharp needle electrodes, sharper scalpels... and lot's, and lot's of rats (or what

I am troubleshooting an older tek scope that has sweep issues and after doing a bunch of checks, am beginning to think the tunnel diode may be bad. The only way I know to test these is to remove them

Many years ago we were at a second hand dealer that we knew well. He came back from a house rather upset. A Toolmaker had died & his family so admired the beautiful wooden tool boxes that they emptied

I uploaded a pdf scan of my paper Operators manual 070-1402-00 to Tekwiki. A few pages were revised, up to Nov 1977. Albert

I guess that it really does not matter how you get it done, just that you have the manual. Computers and networks do some crazy things from time to time. Good Luck with your repairs. Hoping to read of

It also helps quite a bit to carefully warm up the knob with a heat gun before pulling on it. This has been explained numerous times here.

Roy, that part was made by Tektronix. Jeff

Hi everyone , I need help . My 661 has HV insulation breakdown in the power transformer and I need a suitable 6v transformer that can stand working at 3KV for the CRT heater . Here in the UK most

Pre-retirement, I worked for a University in UK. Almost overnight, it seemed, many of the research departments decided to 'go computer', and there was a mass dumping of analog equipment, particularly

They are basically a push/snap fit but unless you manage to pull exactly parallel to the shaft they have a tendency to break irreparably. Different people will proably recommend different tools but it

does anyone know how the bigger knobs come off,ie the ones without allen grub screws?,tia.

This one isn’t too bad. I had a friend that was ex - Motorola technician and had very good contacts in the company’s technical end for a lot of years. I could not contact him for several months. I

its odd,i had to view the mil manual in my browser,it wouldnt download,so i chose to select open with acrobat,did that then saved the file as and it worked,never had that before!

No, they do not always have such a label. I have a 465 that has a 1xxxxxx serial # and no other evidence of its Guernsey origin. This is the purpose of TEK using their system of serial number prefixes

To wrap up this subject, I do have my AA5001 back together and it does seem to be working very well. One or two of the reed relays might have started off a little scratchy, but when I tested them out

i mean the military manual.