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Fluke 8845A 8846A Electrolytic Capacitor Replacement
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Topic: Fluke 8845A 8846A Electrolytic Capacitor Replacement (Read 912 times)
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gogoman
Regular Contributor
Posts: 123
Fluke 8845A 8846A Electrolytic Capacitor Replacement
«
on:
December 27, 2022, 03:54:02 am »
Hello all, What brand/series of cap's did you use and would you mind sharing the BOM.
thanks gogo
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Miti
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Re: Fluke 8845A 8846A Electrolytic Capacitor Replacement
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Reply #1 on:
December 28, 2022, 12:20:12 am »
Did you measure them and concluded that they need to be replaced? I remember measuring some in my 8845 and the conclusion was-don’t touch them.
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gamalot
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Correct my English
Re: Fluke 8845A 8846A Electrolytic Capacitor Replacement
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Reply #2 on:
December 28, 2022, 10:35:59 am »
Yes, why replace them? Inside my Tektronix 4040, the plastic jackets on those electrolytic capacitors shrank a lot, look ugly, but they seemed to work fine.
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coromonadalix
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Re: Fluke 8845A 8846A Electrolytic Capacitor Replacement
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Reply #3 on:
December 28, 2022, 04:45:01 pm »
Good brand is Nichicon
I recapped my 3x 34401a meters with them, for the tantalums can't remember, they where way older than theses meters loll
But if the meter work okay there is no rush, you need very good skills and the proper tools ...
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gogoman
gogoman
Regular Contributor
Posts: 123
Re: Fluke 8845A 8846A Electrolytic Capacitor Replacement
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Reply #4 on:
December 29, 2022, 02:27:26 am »
I would not replace them if I did not need to
BOM (to be confirmed)
Value Voltage qt Comments
15000uF 16 1 TH
6800uf 10 1 TH
47uf 100 1 TH
220uf 50V 2 SMD
1000uf 10V 1 SMD
2200uf 35V 2 ?
Is the voltage rating of the 220uf and 1000uf correct, attached are pic's
thanks
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Miti
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Re: Fluke 8845A 8846A Electrolytic Capacitor Replacement
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Reply #5 on:
December 29, 2022, 03:18:04 am »
My go to brand/series for recaping instruments is Nichicon PW. I used them in switching power supplies and main boards and they never failed me. I recaped oscilloscopes, lcd monitors, signal generators.
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