What is the current state of the art for replacing the 2020b late model NVRAM? 0. Looks like the Dallas DS1225AD is a drop in but requires extracting the configuration data. (Yup, I get that my 2465B

One more detail I forgot to mention: The international orders for Peter's book are all sent via AIR MAIL so they should arrive fairly quickly even though they are going around the world in many cases.

This book has been in the PHILADELPHIA PA NETWORK DISTRIBUTION CENTER since Jan 8 and it hasn't moved. Tracking #: 9549016335941002722853, Bryn Mawr PA 19010 These two books are still in the SEATTLE W

Hi All: I started this topic, to see if we are interested in coming up with way(s) to satisfactorily construct "blank" TM500 modules, for custom plug-ins. What ways and satisfactory mean will have to

John, I do have a manual that contains a schematic for the 6106 (most probably from tekwiki). I do see the two inductors, but they don't look like part of a T-coil in this case. They certainly do have

I recently picked up a 5A21N scope plug-in as a parts unit from which to build Jared Cabot's updated TM500 mainframe tester. I noticed this type lacks the back-plate or lower guide-pins found in some

Hi all, I recently picked up a P6137 scope probe for a song and thought I'd try my luck. Predictably, the center conductor on the cable is open circuit..... Is there any way to repair or replace this

The 6 books destined for the Springfield Bulk Mail Center have arrived there and are being distributed to the local destination post offices. Dennis Tillman W7pF ______________________________________

Hi, Since I’ve had this scope (2235), it’s one that I enjoy using because it’s fairly light in comparison to my other ones; the form factor is convenient. And it gets the job done for my needs. Howeve

Is there a full version of Wavestar I can find that will work with a 754D oscilliscope over GPIB? Thanks

This mght be well known but I saw some Tek manuals online here when looking for some Sencore ones: https://www.lost-manuals.com/manufacturer/Tektronix

Hello everybody, I have a Tektronix 7904. The device was probably left unused in the attic for a long time. After opening the device, I noticed that the board for the horizontal deflection was quite d

https://washingtondc.craigslist.org/doc/ele/d/crofton-vintage-tektronix-535a-scope/7264086289.html Thomas Garson Aural Technology, Ashland, OR By my calculation, the dynamic range of the universe is r

Peter Keller asked me to pass this along to the group. I'm sure he was smiling the entire time he wrote it. Dennis Tillman W7pF I guess it is time for the real story of the Coketron to be exposed. The

This book is being held in the main USPS Seattle Network Distribution Center: Tracking #: 9549016335941002723034, Zip Code: 67212 (Wichita, KS) This news story may have something to do with why it has

greetings to all, I have the schematic of the option 7 board for the DC508A, but I think it can also be adapted for the DC502, the problem is that I don't know what are the changes to be made to the D

I have a interesting issue with a 577 D1 storage CRT where random portions of the trace will flash brightly at random times on the screen. I tried turning the brightness to minimum where the trace dis

Hi, I recently adquire this unit I had a diplexder and WG so to be able to increase the 21GHz frequency but this unit does not go over the 21GHz limit. It does not appear to have any options but it do

Hello all: My workhorse 7A26 needed rework, in 7804 mainframe. Cleaned the AC/DC/GR contacts on attn with the iso alcohol-paper strips, and exercised some scratchy controls. Poor fast transient respon

I need to make some space on my bench, and for measurements as high as this will go, I usually move to a spectrum analyzer anyway. 4 channels, 1 GHz, color display. GPIB and floppy work; I didn't test