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Did you try adjusting trigger levels? -- Prof. Thomas H. Lee Allen Ctr., Rm. 205 420 Via Palou Mall Stanford University Stanford, CA 94305-4070 http://www-smirc.stanford.edu

I recapped my 2465A power supply and now it produces an audible clicking noise and the device no longer turns on. Accordingly, I have constructed the dummy load presented in the service manual but am

Hi - recently a ham up here passed away, in his collection are 2 old Tek scopes, they are looking for a new home. One is a 7623 + 2x 7A26 + 7B53A on cart model 3 other I think is a 535 (my photo cut

Hello, This is my first post here. I have a 465B that displays something strange when I probe the test calibrator. The top pulses are connected with a weaker horizontal line in between the actual

Thank you all for your replies! So it looks like I've got a problem with the SG503 power supply then. Because ~4.74V is probably not enough to power the counters. And the LED drivers require 5.25V

Yes the Artek manuals were labeled as 465B but both were actually for the 465. I have a B. The site openweb.de has a nice quality copy with full-size schematics 24x11 size The title

I think there was some question about the AM502, I don't have one so I never really checked. AM503A and AM503B are explicitly compatible with TM5000 series

Simple mistake in assembly. Two wires, L and N, swapped in the Vertical Current/Div board, even if I checked very carefully. Now it works fine again. One thought about the broken knobs. Do we destroy

IIRC the TM5000 series does not like the AM503 (?) current amplifier.? There should be a table in the archives giving compatibility.? Almost everything is happy otherwise. The TM5000 modules do

As far as I am aware ALL tm500 plugins can be used in tm5000 modules but tm5000 and not be used in the tm 500 frames. One not of caution there are some special tm5000 modules that only support 1

I can confirm that SG503s are capable of running quite happily in TM5000 enclosures. [email protected]> wrote: -- Andy

Hopefully this is a clue, but upon initial power up, "search failed at sweep speed 5uS" is displayed for a few seconds than goes away. I ordered the manual, so will see if I can find where the

It's the 535A CRT (T64P/T533/T5330) that needs pin 8 wired; the 535 CRT (T51P) is NC same as T52P. Dave Wise Maybe someone in the Beaverton Oregon area rescued a T52P from Stan Griffiths' estate.

I have a couple of the SG503's, both older and newer versions. I'll stick them in a TM500 and TM5000 mainframe and take some measurements in the next few days. I had one that had a faulty crystal

@sitzstange No thanks needed for my offer to buy the CRT, i needed one and it seemed you were suggesting that you may sell the 575 for spares or part it out. If you change your mind you know where

On Wed, Feb 14, 2024 at 02:44 AM, Don - AC2EV wrote: "Nope. The low serial number has a different layout of the front panel. The calibration bar is shifted to the right. On mine, it is dead center in

I believe you can also use a 535 CRT if you want to run 300V to pin 8.... See: /g/TekScopes/topic/7653722#105000 But there may be some deflection issues... But still better than no

575 shared CRT with 525, 532, RM32 and 570. In S/N 101 thru 1351 154-0097-00 or 154-0343-00 were used. S/N above that used 154-0763-00. Replacing the CRT on SN 1351 and lower with 154-0763-00 required

Hey y'all! I am reaching out regarding an SG503 leveled sine wave generator I am trying to repair. It's mostly in good shape, however, the 7-segment display does not work - it just displays all

Sphere will not have one. I will look at the stock tonight. ALL of spheres vacume tubes currently reside with me Eric