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Sorry, forgot to mention cause I use it for 230V AC operation.

Can anyone know if this PSU modification is correct?. I need to use one booster capacitor in place of two original Sprague. Thank you Panos. http://postimg.org/image/yun07n7gl/

Hi David. So the issue I am having with the scope is the trace does not go all the way across the screen of the CRT of my Tek 465B. The community has helped me isolate the problem, thus far, to the

I would be helpful at this point if you reviewed the problems and what you have found so far. The transistor junctions in many cases can be checked in circuit with a diode test function. If a

Good deal. Sounds like you're making some progress then. We have some pretty sharp folks here on this list, and I've gotten tons of help from them in the past. Don't be afraid to ask for help, it's

Taylor, George, Thank-you. This is greatly appreciated. I do have a question. I didn't find a troubleshooting guide. Is there one buried in there someplace? And a very big thanks to everyone

Did you try Talon Electronics? I get FREE yes FREE pdf service manuals from them, just for asking. George is the old timer there - be sure you put that in the contact form. I got an LG LCD manual

Thanks Mark. I ended up using a 470 uF cap rated at 250 volts. Turns out I didn't need to perform the technique after all. In my haste checking voltages, I missed the mV designation on my DMM. Looks

Yeah, I'm pleased that the voltages are OK. I will begin checking the connections over the weekend, but I will have trouble with the transistors. I know some scopes use sockets for the transistors,

You can also use a higher voltage cap too. Won't matter a bit. Just don't go lower. Mark

Well, the good news is that it seems you won't have to replace one or more of the large el. caps. If you're now certain about the voltages you reported, I'd say the power supply voltages are good

OK, so this is kind of embarrassing. Turns out the 15 v I said I saw last night on the 110 v rail, was actually 15 mV. Sucks getting old. I hooked up a 470 uF 250 v cap that I pulled out of an old

Is there another plugin next to the stuck one ?Sometimes, if a PI side panel is not installed correctly, the front edge can get caught on an adjacent plugin, or on the left edge of the

Cavid: Thanks; that worked great! Mike N4MWP wrote: [Non-text portions of this message have been removed]

https://groups.yahoo.com/neo/groups/TekScopes/conversations/messages/96664 https://groups.yahoo.com/neo/groups/TekScopes/conversations/messages/112514

Dear all! I replaced the batteries BT150 (A18 Memory Board) and BT130 (A14 I/O Board) on my 11801C. Because the fact, that the NVRAM is completely cleared, the scope lost also its ID#. Is there a

One more. This is what I order finally. Available at no extra shipping cost in Europe also.

In connection with the concept of using the LH1262 (or similar) device, I have two questions for the group members: 1. To implement the "regulation" suggested by raymonddf, applied to the use of an

Thanks for the insight Paul. I am familiar with parts removal, and would probably have determined the best course of action would be destroying the cap and removing the individual legs one at ta time.

If you can't get to that file, I think I have a copy around that I could mail you. It's a good writeup. The big fun comes in replacing the cap. The PCB is easy to damage. It's probably easiest to