The 191 only goes to 100MHz, so there is absolutely no reason to retain the GR874. That frequency is a cakewalk for even a halfway decent BNC. I've stayed with the GR874 on mine, but only because I

Hello guys, On my 7623A, the Vertical Output amplifier fails to give me that last nanosecond of step response. The best I was being able to get from it was about 4.5ns risetime and even though, at the

All: I got the PG502 FIXED. Found a couple NOS MC1660L IC's, installed them and still had various duration control issues. The voltages and resistances were within limits, so I decided that there

Hi Rick, of course there is plenty of experience here in SMPS problems&repair. But it's not of much help to repeat discussions here. If the fault is not immediately recognized then you will have to do

I didn't know there were any other group members in Sunnyvale, but should have guessed...  Tempting, but I made a vow to stick with the 7K and older series. -Dave To: TekScopes@groups.io Sent:

Please contact me at erturkk at kocalar dot com instead of responding to the group. Thanks, Erturk Sent from Mail for Windows 10 Sent: Wednesday, June 6, 2018 10:12 AM To:

Hi all, I want to find good homes for some toys to make room for the baby. Anybody in bay area who wants following for $250 obo?  I'm located in Sunnyvale, CA.  We can meet in between. - Tek 2440

hi Michel, What was the problem and solution for your Tek 7834 scope ? I just acquired one, & it is also not powering on, with No modules installed. If you can provide the details of the repair, I

Sorry to nitpick. The 067-0681-01 uses some 1/8W parts - the 3K worth of 1K pull-up resistors - but the 43-ohm terminating resistor is 1/4W, not 1/8W. The hole allows one to mount it coaxially in

If you don't get the tic sound, there is another line fuse that is inside the PS. Is the neon bulb on inside of the PS on? John wrote:

Quite. The reason I asked of course is that a known failure mode is the bridge rectifier right on the power input. If that goes phut it takes out the power fuse. Craig

The 191 only goes to 100MHz, so there is absolutely no reason to retain the GR874. That frequency is a cakewalk for even a halfway decent BNC. I've stayed with the GR874 on mine, but only because I

And is the fuse of the correct rating?

Is the fuse intact? Craig

Hi This might seem obvious, but have you checked the IEC mains connector? It has a filter in it, on my scope it failed.  My scope the 50 volt rail has a problem so the HV CRT has a problem, but

On Wednesday, June 6, 2018, 12:06:15 AM PDT, Craig Sawyers <c.sawyers@...> wrote: It is also why in earlier generation Tek gear they used GR874 connectors Hmmm ...Maybe ...Bought

Was hoping for more detailed notes/observations about teardown/repair of the 7000 series Tek PS units: -- Anyone with detailed experience out there ?? I have pulled the instrument top & bottom

Hi. I was dealing with same problem in my scope. I recommend to use this guide. http://w140.com/Tek_7904_Power_Supply.pdf If nothing help you, i have an atomic solution for this faulty power

I have the exact same problems with an 7834 I aquired some time ago:absolutely no signs of life. The presence or absence of plugins makes no difference. This is one topic I will be watching _very_

You have to supply a direct link to the photo if you want me to see it. Photo albums are not searchable.