[RFI] Suggestions for linear 19 volt supply?

Jim Brown jim at audiosystemsgroup.com
Mon Mar 19 23:48:38 EDT 2018


On 3/19/2018 6:34 PM, W7SLS wrote:
> What would you recommend for 19 volt items (laptops, intel NUC, monitors, other devices), and distribution system for same?

I've owned a bunch of Thinkpads over the years, and their supplies tend 
to be fairly quiet. When I've retired the machines, I've kept the 
supplies and use them for these sorts of applications. Between the XYL 
and me we have four of them. I routinely wind both AC and DC power 
cables through ferrite cores. Their current loaded Thinkpads use 
supplies rated for 4-5A at 20V. Older T2x -T4x series are 16VDC.

My guess is that both can be found on EBay for not a lot of money. Just 
make sure that it's a real Lenovo or IBM supply -- I wouldn't count on 
after-market supplies being quiet.

73, Jim K9YC



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