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It's not only the 2x68nF on the A2. On the A3, you'll find another 4 of these to be replaced. See the overhaul

There are RIFA condensers in the power supply on the primary side of the transformer as well. Replace them. I used 630V film types and the X1 types to replace them. Mark

My 2445B blew the RIFA caps exactly as you described. Good news is that this is a simple fix. Replace Rifa caps on the AC line input filter. Clean up the mess they left. Search the forum. It has been

I recently received a 2465B, s/n 126xxx, from Isle of Guernsey in which the A5 had Rev -04 firmware. When I update the firmware to a higher Rev (I tried 06, 08, 11) there is strangeness in the

And amount of next year average rain for specific location... Titi

Howie usual for the VDE caps to burn up or explode on a 240V mains but seldom on 120V. No overheating as the event is rapid and the caps are inside the EMI / IEC modules. Also check the LV PSU board

I had similar in my HP 8904A: it was (probably RIFA) cap in line filter, integrated inside C14 mains socket.

Hi all, On the heels of success fixing our 2712 (thanks again, Jaap!) I was doing some digital circuit design using all four channels of the 2465 (although I doubt this fact played any role in the

Hi all, I want to inform the group that Japp is a genius...well, he understands the 2712 as if he had designed it! His experience with his (and other) 271x SA failures was exactly what mine

I actually forgot I have a DE-5000 lol. I had to look it up and it recognized it. That is what I use at home. In the lab I use the Reed R5001. Both are great. Regarding utilizing social media,

This is certainly beating a dead horse ? by now... I have the DER-EE DE-5000. It seemed really cool, but I've never needed to reach for it, and it's collecting dust right now. I do lots of

If it helps further, there is also an old school method to measure ESR quite accurately using a known series sense resistor and a decent 5.5 or 6.5 digit DVM that can measure AC Vrms voltage up to

This is a good point actually. I learned a few things about ESR in this thread or brushed up on some concepts I hadn't considered in a while. I bet the OP is thinking "alls I wanted was an ESR meter

This is pretty much my train of thought on the subject as well. Look at all the info that is horse traded back and forth in such a thread. Even some of the experienced guys might learn a new tidbit

Okay, fair enough... one man's beauty, is another's excuse for another drink. My point, is all and only... and just my opinion...there is no implication on general value, if someone prefers chocolate

[email protected]> wrote: Imma going to respectfully disagree with your point of view here. While it's true that it's perhaps redundant - in terms of the raw theory of information - to

Bonsoir, ESR causes power dissipation, I ripple RMS exp 2 * ESR. The internal electrolyte hot spot temperature is raised by the dissipated power, so life is shortened and thermal runaway is

That can be especially true with some instruments. Some of my HP instruments from the '70s and '80s use capacitors specially built to HP's specifications by Sprague. You can't replace some of those

IMSAI guy puts out great content whether he likes Tek scopes or not. I'm not sure what your point is. Any old Tek gear is going to 'hold down the basement floor'. Everyone in this group probably

One only has to consider positive neutron flow. Negative neutron flow doesn't .. uh.. count. DaveD KC0WJN Thanks for all the fish. ============================== All spelling mistakes are the