This caught my eye on Bay today: https://www.ebay.com/itm/143483702797 "Tektronix Oscilloscope MOD 709V W/ 5A19N Amp, 5A19N Diff. Amp, 5B10N Time/Base" All I could get out of Google was one more add f

Greetings, I just stumbled across a Tektronix shaft coupler on eBay and recall someone on our group was seeking a coupler. I have no connection to the seller: Good luck if you need it. Tektronix 376-0

from Tim P (UK) How reliable are the J-FETs (usually 151-1004-00) used in Tek plug-ins? Also, does it really matter which way round they are in the sockets? The manual shows Source, Gate & Drain, but

Is there a known failure mode when the high side of an SG504 goes dead? Reference and low are working as expected high is out to lunch. I have cleaned the switch and that does not seem to help.

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.

Hello everyone, I am trying to repair a DC503A universal counter. I found a blown fuse on the line from which the 5Vdc is taken, I replaced it and the display turned on (only the first digit on the ri

Hello all I have now time to look at my old Tek492a there is showing up a error when it startup...pse look at the video link: https://photos.app.goo.gl/c3xCHVpAN6LVdvtq8 any idea where I start to look

Hi folks, I scored 485 with few missing knobs and very blurry trace. It was for about $30 so I didn't expect much from it. I have 2445B as a main scope I rely on for my everyday work as a vintage audi

Bonjour a tous: Working on SN B062 2465B, GPIB and CTT/WR options. Faults in CTT option. Affects triggering. All cables are correctly attached to options board, A5 board is not at fault, SMD leaks and

Does anyone know where I can download a copy of a 3T77A (not 3T77) manual? Also, any idea as to what could cause this kind of mold/mildew on only the axial electrolytic caps, and no other components?

I have a 485 and 7904A that are in pristine condition. Both have B (Beaverton) serial numbers. Is there any place you can find what the last serial numbers produced are for either one of these? I've h

While I am sure there are many tips that others have, I found a thin hot soldering iron pressed into the iron screw socket head will sometimes add enough heat(expansion) to get things going. I have al

Hi everyone, Element 14 youtube channel made a video that may be of interest to you guys: https://youtu.be/QkgtF6BLy2A Enjoy! :) Best regards

Hi all. I received a 7b92a recently. I checked all jumpers for correct settings. When I put it in my 7904 mainframe it shuts off the crt and graticule illumination. The trigger light on the 7b92a is c

Got a 465 that was somewhat functional but no trace with blown F1419. Went thru Groupsio file library and replaced the C1419 and that got the signal trace. Reviewed the Power supply and here are the o

B315148 Replying here because don't know M. Lynch's email David

Hello all. I have a 7A13 late version plug in that I need some knobs for. It doesn't matter to me if they are new or used, just so they are good. V/div knob 366-1123-00 Variable V/div knob 366-1082-00

Hi group, Is there a place to discuss Tek spectrum analyser topics ? I own a venerable 491. Regards Michel (F1GOC)

Does anyone know if Russians ever made a reaaaaaaaally long CRT to direct-view GHz signals? I have this notion in my mind but I have no idea if it's true or what.

From Tim P (UK) Just got back into my quest for a working 5441 - I've given up on the instrument with the 'howling CRT' and bad storage board; that one had the fault where it would fade positive in NO