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Steph, I'm working with only boards A23 and A12. The low voltage regulator board A22 was disconnected from the rest of power supply, and there are no other connections. I pulled out connectors P52,P50

Is another test-bed link needed re Fault Sense signal P83-4? Suggest trace the signal path. [It has a convoluted journey through Main Interface (sheet 3 where renamed "HV sense"), then through

Seems there are some Fab Labs, Hacker Space's or Maker Space's in the area that may be able to assist. Maybe https://www.noisebridge.net/ is a place to visit and see who can assist. I'm sure there are

Situation normal with the Tek switchers AKA "High efficiency power supply". There are three that just sit here having defeated all attempts at fixing. Craig

I got this 7854 to repair. Main symptom:it blows the 4A main fuse. After several tests and measurements, the culprit was found in one of the two leveling capacitors (C16), 950uF 200V with a serious

Thank a lot for the input will try eevblog

On Sun, 21 Apr 2019 05:33:05 -0700, you wrote: >On Wed, Apr 17, 2019 at 07:55 AM, Harvey White wrote: > >> >> On Wed, 17 Apr 2019 07:06:19 -0700, you wrote: >> >> >I have been given this tool. I have

Since the 2467B is mostly software driven, and the 710x series is hardware without a bit of software, I can see the mechanisms being quite different. The idea, though, is much the same. Not at all

On Wed, Apr 17, 2019 at 07:55 AM, Harvey White wrote: > > On Wed, 17 Apr 2019 07:06:19 -0700, you wrote: > > >I have been given this tool. I have a Tek 2246A and a Hitachi scope already. > What can I

The 2467B will go into a screen saver mode after about 5 minutes of inactivity (eg. no knob motion). It also will move the display readout positions every so often to prevent burn-in. The counters for

The 2467B and 7104 most assuredly do *not* have the same CRT! There is a good 6 inches of difference. They both have a micro channel plate (MCP) image intensifier, but they are not the same CRT. By

I believe that the last list price for that TD from Tek was $800. And that was decades ago. The only other place that diode is used, is in the 7T11 sampling timebase. So yes - read the manual.

If you haven't tried the EEV Blog Forum, you can post there too. There are some threads about the 2467B on that forum too. Best regards and wishes. Roy

Hi All: I remember something about an limiter circuit to limit the anode current, when driving the CRT hard (displaying a bright trace). That circuit was supposed to keep the maximum brightness to a

Download and read the service manual before you do anything. You didn't say what you paid for it, but if it wasn't expensive, it's probably broke. A DVM on the output probably won't hurt it if you

is there any other way I can contact or can somebody guide me whom to pm.. to ask for help

thanks a lot for the advice will follow it.

I’d bet on the tantalum, they are notorious. Regards, Stephen Hanselman Datagate Systems, LLC 3107 North Deer Run Road #24 Carson City, Nevada, 89701 (775) 882-5117 office (775) 720-6020 mobile

Hi all, I am lucky enough to have been able to visit SurplusGizmos this morning, where I found and purchased a 284 Pulse Generator. I am pleased, but wonder if anyone has advice regarding a first time

Hi All: Mostly the above seems to be ignored in this discussion... of course... it is a thread about 7000s. Just the same...and sort of on topic... if someone said to me slide over your 7404, with