Re: Recapping Capacitor List

Posted on 2021-10-14, 15:16

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The meter does show Vloss , would that be leakage? I don't know sir, I'm going to defer to the experts on that one. I have one of those meters, it's the inexpensive $20 microcontroller meters, correct? I have also seen Adrian Black comment on another important reading on his LCR meter (can't …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 13:47

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Generally speaking from what i gather on the psu, the esr meter seems to say that anything with a UF in the hundreds or thousands are low esr and the and anything less than that is just general purpose caps?? Does that sound right? Bigger caps have lower ESRs by the nature of their manufacture ( …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 13:44

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Generally speaking from what i gather on the psu, the esr meter seems to say that anything with a UF in the hundreds or thousands are low esr and the and anything less than that is just general purpose caps?? Does that sound right? Bigger caps have lower ESRs by the nature of their manufacture ( …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 13:26

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Generally speaking from what i gather on the psu, the esr meter seems to say that anything with a UF in the hundreds or thousands are low esr and the and anything less than that is just general purpose caps?? Does that sound right?

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Re: Recapping Capacitor List

Posted on 2021-10-14, 13:21

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Okay how about this list? Looks good. This is just for the motherboard? Mind the lead spacing though. I think those Panasonic ones ending in B have a wider spacing and a crimp just before the legs go in to the capacitor There's no need at all to worry about lead spacing for any of these parts. Yeah …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 13:10

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Okay how about this list?

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Re: Recapping Capacitor List

Posted on 2021-10-14, 13:04

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

mockingbird wrote on 2021-10-14, 13:02: AppleSauce wrote on 2021-10-14, 13:01: Diameter: 8 mm See my post, I edited it. right my bad also ill switch to the one you recommended

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Re: Recapping Capacitor List

Posted on 2021-10-14, 13:02

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

most of the caps i picked are 8mm the smaller ones are 5mm

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Re: Recapping Capacitor List

Posted on 2021-10-14, 13:01

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What's the diameter on those 6.3V 1000uF? For 8mm, any of these will be fine (yes, you can use slightly higher capacitance and the voltage rating can be higher): https://au.mouser.com/ProductDetail/Panasonic/EEU-FR0J122LB https://au.mouser.com/ProductDetail/Panasonic/EEU-FR1A102L https://au.mouser. …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 12:50

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hokay this list might be good then.

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Re: Recapping Capacitor List

Posted on 2021-10-14, 12:21

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Also what rubycon ZLG? they any good?

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Re: Recapping Capacitor List

Posted on 2021-10-14, 12:15

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Think there's a possible inrush current issue, and possible stability if the feedback loop is a bit slow or insensitive, but I'd expect the difference between high or low 10s of milliohms (going from low ESR AlElectrolytic to Polymer) is probably masked by other resistances in the circuit. So I …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 12:03

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Looks like Mouser have a few 1000uF 6.3V low ESR options in stock: https://au.mouser.com/c/passive-components/capacitors/?capacitance=1000%20uF&product=Aluminum%20Hybrid%20Polymer%20Capacitors~~Aluminum%20Polymer%20Capacitors%7C~Low%20ESR%20Electrolytic%20Capacitors~~Low%20Impedance%20Electrolytic% …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 11:27

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There seems to be a shortage of low esr 1000uf 6.3V panasonics and no 22uf 16V low esr ones any substitutes I can go for?

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Re: Recapping Capacitor List

Posted on 2021-10-14, 08:48

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Oh right fairchild that makes sense. So the way I see the situation i can either recap the aopen but that's not reccomended, recap the codegen , use the codegen as is and risk playing psu russian roulette or I can buy another psu. Is the 2-transistor 5VSB thingy such an issue , according to badcaps …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 04:53

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

By the way what company is this logo on the chip im just curious. That's Fairchild Semiconductor. Fairly common IC used in PSUs. Oh right fairchild that makes sense. So the way I see the situation i can either recap the aopen but that's not reccomended, recap the codegen , use the codegen as is and …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 04:09

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What's wrong with the HEC caps they seem fine? Are they not reliable or something. Also how can you tell the numan has more secondary filtering? Im just wondering so I can learn bit more about psus. HEC isn't reliable... It's a third-tier brand, and third tier primary caps often measure 100-200uF …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 03:23

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is the Numan 20211014_135826.jpg Here is the Codegen 20211014_135857.jpg I would say go with the Numan (hello Numan!). It has more secondary filtering. Take the two Teapo primary capacitors from the AOpen PSU and replace the two "HEC" primaries with them though. You might also want to swap the …

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Re: Recapping Capacitor List

Posted on 2021-10-14, 03:04

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is the Numan Filename 20211014_135826.jpg File size 1.56 MiB Views 637 views Here is the Codegen Filename 20211014_135857.jpg File size 1.63 MiB Views 637 views

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Re: Recapping Capacitor List

Posted on 2021-10-14, 02:25

by

by AppleSauce

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Okay is there a specific model you can reccomend then? Did you look through that thread I linked to? Look through the posts and find a unit that has all Japanese caps in it as well as a modern 5VSB circuit. Hang on i totally forgot i had some spare psus would any of these be suitable? You've got …

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