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

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

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

Hi Ozan, Yes, it's funny how once you notice something, you suddenly see it everywhere. In the case of the 741, that NPN-PNP mashup was done to work around the terrible performance of PNPs. By combini

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

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

Someone here (I believe) was preparing a BOM for the Jared Cabot TM500 tester but with DigiKey stock numbers. Has that been completed? And, one capacitor P/N was incorrect; what was that? Note that in

Hi all, I have been accumulating TM500 modules and mainframes for a little while, so I recently finished building an 067-1201-99 TM500 mainframe tester from the Tek construction notes floating around.

Pleased to report a package of Peter Keller books arrived safe and sound in the UK end of last week. I was rather surprised how fine these are - nice hardbound volumes with nice design work - a pleasu

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.

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

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