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Old 09-17-2018, 02:29 AM   #13
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Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
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Default Re: Modifying laptop adapter for 12v

You can leave the 24 KOhm in place and just put another resistor in parallel on top of it. 240-470 kOhms should give you 21.4 to 22.8 kOhm range.

This power adapter looks pretty decent, especially with those Rubycon caps. Also appears to use synchronous rectification. And yes, looks like it does have over-current protection.
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