I have done a lot of these systems over the years, and th9nk a few points are worth passing on: 1. The TM5000 series is totally unsuitable for ramping with a variac due to its power supply design, it

Martin added the album Tek R453 (rack version)

Hi All. I've been trying to get a dump from my three TDS scopes and can't seem to get it to work. The reason I am trying to do this is so I can replace the ds-1650y with fresh ones. I am using the min

Hi all, not exactly a scope, but a Tektronix. :-) I inherited two of these boxes, apparently working. Both have quick-user-guide inside the flap, but I'm unable to find a decent user manual, less a se

Dave's recent post looking for a 2236 CTM readout VFD reminded me I need to mention this. We lost a vacation house in the Santa Cruz mountains during the CZU fires - everything gone, including my 2236

Dear all, I bought the "functional replacement" chips of the Dallas DS1650 and DS1486 to replace the ones in my scope. I have downloaded the the TdsNvramFloppyTools and read the 1486 several times bef

The following files have been uploaded to the Files area of the TekScopes@groups.io group. /DUMP.BIN By: EricJ Description: NVRAM dump from Tek TDS754D (converted to TDS784D). Scope has options 13,1F,

Good day, Among my interests is the original uptake of transistors by companies that were not nominally (at the time, anyway) in the transistor business - customers like Tek (and HP for that matter).

Hello, Today I turned on my lovely 455 just to find a pretty fat and kinda fuzzy trace on screen. Does not look good and well defined as it used. I try to raise the intensity and refocus only to find

PSA: CERAMIC STRIP LOCATIONS WITH RISK OF ARCING IN TYPES 535/545 David Wise October 2020 1. Delaying Sweep chassis, lower left corner. The two rightmost terminals on this strip are +500V and ground r

https://seattle.craigslist.org/est/ele/d/snoqualmie-vintage-tektronix-577/7212143179.html

https://www.facebook.com/marketplace/item/2672172223098237/ Tektronix Oscilloscope model 7904 + Tek Lab Cart model 3 $700 in Lake Oswego, OR

Hi Clark, No. I have been working on something else I need much more. It will be done in 2 weeks and then I am free to start on something else. I would like to make the 7804 Conversion board but first

HI all, I am out of my depth, no question but I'm going to ask and see what you guys think. I have a TDS 340A which has behaved well but now has some kind of switching artifact that makes it impossibl

Hi all, It’s been a couple of years since my last appeal. I’m looking for the vfd display used in the counter timer of the 2236. Part number is 670-7423-01 for the small board and 150-1110-00 for just

Hi all, As you might know, I recently joined the 519 club with a excellent specimen. It came with a few accessories, namely 2 x 50T/125T throughs, 1 x 50T/125N through, and 1 x 1000MC timing standard.

If you are a 561/564 fan (like me), and have some 3B1/3B3 plug ins, you may have a use for this kit. It provides a replacement silicon transistor and bias resistors to replace a bad 151-0062-00 german

I had in my used parts bin two DALLAS DS1235ABW which I'm pretty sure came from the CPU board of a scrapped later 2400 DSO, I'm not sure which though. On a 2430A B030000-up they are A12U350 and A12U66

Couple days ago powered on my Tek 577 D1 and found ripple on the display curves. https://groups.io/g/TekScopes/photo/255563/1?p=Created,,,100,2,0,0 Later I found a leaking electrolytic capacitor C124

There is one shipping trick we have used that works really well, if the items will fit in a padded bag, and stay around 100g, they can ship for just US$6. A lot of items can do this, especially small