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Hafler SE120 power supply capacitors
Hafler SE120 power supply capacitors
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Old 16th September 2018, 02:55 PM   #1
ivandrocco is offline ivandrocco  United States
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Default Hafler SE120 power supply capacitors

Id like to refresh my SE120 by replacing the power supply capacitors, rectifier bridge, and adding an inrush limiter.

I believe the stock DH120 has 6600uF 60V capacitors, and the common upgrade is 22000uF 63V. Should I look to do the same on the SE120?

Mouser has some Kemet 33000uF 63V caps for $19 a piece. Theyre cheaper than the 22000s.
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Old 17th September 2018, 09:42 PM   #2
ivandrocco is offline ivandrocco  United States
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Did some reading on capacitor selection and it seems like these are a nice combination of low ESR, high ripple, and price. Maybe overkill on capacitance but that seems like it shouldn't be a problem with an inrush limiter... was planning on 1 ohm 20 amp, as well as the 25 amp rectifier bridge.

https://www.mouser.com/ProductDetail...2D630N393MC92M

Anything else I should consider replacing while I'm in there?

http://hafler.com/pdf/archive/SE120_amp_man.pdf
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