I have some TM500/TM5000 prototyping boards for sale. Each board has gold fingers designed to plug into TM500/TM5000 connectors. Each finger comes out to a pad for attaching wires. On the "A" side of

Hi John, About the only one I know of still using the capabilities Tek developed is Bernie Vancil whose company, e beam, inc, is located in Beaverton. Bernie worked in Tek Labs. He is currently making

Thank you for that detailed explanation. I didn't think to break down the interactions by the amount of energy involved. It has been over 40 years since I would last considered the different energy le

Hi Chuck, I don't think the electrons recoil from the nucleus at a precise angle. Rather, they scatter over a range of angles which causes the halo to be wide and indistinct but the halo clearly has t

Hi Chuck and Max, I have a more complete answer about the cause of the halo / flare after speaking to my friend. He designed the vertical deflection plates of the 7104. A very important consideration

Hi Siggi, Thank you for looking into this for us. I am delighted to see their reply. I didn't think to ask them because they seemed pretty inflexible. That was a mistake on my part. For now we are OK.

Hi Adrian and Colin, The only time I ever saw Deane Kidd get mad was when I mentioned the Metric System to him. I realized (after I did it) that it would have been a nightmare for Deane if Tektronix d

Go to the TekScopes Home Page https://groups.io/g/TekScopes At the top is a blue band that extends the width of the window. On the left side of this blue band are three choices: "Groups"; "Your Groups

TekScopes is the 17th MOST POPULAR group on Groups.io out of 12,000 groups. This is determined by the number of members we have (7,711). We are way down the Groups.io MOST ACTIVE list which ranks grou

At the Seaside OR ham swap meet last Saturday one of the TekScopes members asked if there was a way to list some Tek parts he was looking for on TekScopes. Of course there really isn't one at the mome

Often when a member says they have some Tek scope/instrument/plugin/part/etc that they no longer need or want the next person who happens to logon is the lucky individual who grabs it. On occasion I h

Hi Fabio and Tom, Tek made relays are notoriously bad. This is because the "expert" Tek hired to design, manage, and produce them was not an expert after all. I have experienced the exact same thing y

Hi David, I have one. It is obviously going to be a different date code but that is not important Dennis Tillman W7PF

I will be at the Seaside OR Hamfest this weekend with a table. You can ask anyone of the staff where my table is located. Stop and say hello if you will be there too. Dennis Tillman W7PF

Hi Craig, I looked at the Surplus Sales link you included. Right now all he has is non-inductive thick disc shaped resistors with contacts on either side. There is a very big hole in the middle so the

Hi John, The ideal shape for a 50 ohm terminator is exactly like what you described at the bottom of the N connector that you found as a child: a disk with the same diameter as the connector's outer s

Brian Cockburn was kind enough to proofread my paper. Unfortunately I didn't know Brian could do this before I uploaded it to TekScopes. He caught the following things I need to correct: Page 1, Parag

Hi Craig, Yes, that homebrew 1GHz probe article at http://emcesd.com/1ghzprob.htm was one of the most useful things I ever came across. Everyone should read it. It is so practical. It overcame my fear

Hi Jim, It starts on page 10 and runs to the end of the document (page 17) Dennis

I uploaded a completely revised and improved version of my paper on the 012- 0482-00 cable for the SG503 signal generator. It is located at https://groups.io/g/TekScopes/files/Evaluation%20of%20the%20