Hi all, I'm happy to announce that the Tek 222/224 Battery Replacement project is complete. I'm in the process of testing and shipping the first 25 orders from deposits received from folks here on

Thank you Roger and Albert for the excellent advice. I have the rackable 7603 and side-probing on the live system is not possible. But if the middle bay is left empty then signals can be brought

You may need to bend replacement FW Bridges to more horizontal after replacement.

Hi Bruce, Strange indeed that you measure 0 ohms at some LV lines while they come up to several volts when the 'scope is powered up. Is there any chance that something is wrong with your analog

Hi! The trick is: In this case the front panel is also a pcb ;-) This board is 0.8mm thick, white soldermask and black silk screen. Here is a closeup of one of my red & white

I sent you a paypal invoice. -- John Griessen

I'll give this a try, so my replies are in line I used to have that problem, and then I took the entire "old" message, copied it to a word processor (notepad is fine), then did my editing, then

Hi Holger, If that's not a secret, where did you have your keyboard overlay card manufactured? There's multiple sources of PCB fabs that are very good quality, and cheap. But I've trouble finding a

Albert, Thank you for that particular insight, my suggestion was just to have a single plugin (the 7B80) in the 7603 and move it to whichever slot gave best access for probing. Your suggestion is

Hi Raymond, Thanks for your help. My board and ROM layout matches your description. Here is a picture of my board: http://w140.com/tekwiki/images/f/f0/P7001_GPIB_adaper_right_dismounted.jpg As you

Hi Holger, I may have a way to read the ROMs in my unit. Just to verify we're talking about the same hw/fw versions: My interface (board 670-4882-03) contains 7 pcs. 2708, numbered 160-0174-00..

Hi Paolo, The 7B80 reading is correct. If you change the Hor Pos control you might notice that the signal is actually between 0 V and +10 V. Just checked this in my similar 7633 (with 7B80 and 7B53A)

Bruce, No worries about not responding personally to my post. You have been inundated with advice and in my experience with this forum, most people do not expect a personal reply for every piece of

Hi As promised an update about my 7854 diagnostics project: I've finished all tests with my ROM card replacement. After that I've tweaked the layout a little bit and ordered a final sample. These

Hi! The GPIB interface in my P7001 does not work correctly. I did some debugging and I'm pretty sure the error is in the firmware. Is there anybody with a P7001/GPIB combo in this group who could

HI John, I am very interesting to buy the 7k flex extender so plese tell me the cost included the shipping at this address : COLISEXPAT - ref.276174 10, rue Eugène Hénaff 93000 -

You can operate the 7B80 in any of the three slots of the 7603 and it will drive the vertical deflection if you put it in a vertical slot. So if you insert only the 7B80 and take all side panels off

Hello. My R7603 mainframe came with a non-functional 7B80 plug-in. Back then I bought a 7B53A and happily used the scope until few weeks ago when I came across the 7B80: time to fix it, or find a new

Hi Group, With big thanks to Dennis Tillman I became owner of a DC508A counter intended for my 7L13/TR502 combo. Installation of the required Option 7 upgrade for the counter is not difficult, but

Hello, Or if you don't want attachments you can just turn them off. Easy. Saturday, May 23, 2020, 7:40:18 AM, you wrote: s> Again, s> How difficult can it be? s> Put relevant pictures in a