This is a note for Future John. Today I got two new RM12-9HR REMCO VRLA Batteries for each of two PowerShield Defender 1600VA UPS systems. The RM12-9HR batteries are 8.5 Ah 12 V batteries I paid AU$65 each for four of them.
Category Archives: Hardware
John Teel on voltage regulators to avoid
UPERFECT 4K Portable Monitor 15.6″ UHD
Today installed my replacement UPERFECT 4K Portable Monitor 15.6” UHD IPS 3840×2160 USB C Monitor HDR FreeSync from UPERFECT. This is a small form factor 4K display which I use as the third 4k monitor on my primary workstation. I use it for displaying notes and reference material, mainly this:
Hacks for repairing broken plastic
Learning the Art of Electronics: 2N.3.2 RC filters | Learning Electronics In The Lab With Jay Jay
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Silly Job Title: Outlet Overlord. I am the Outlet Overlord!
In this video we continue working through Learning the Art of Electronics. Today we build a C:C voltage divider with two capacitors after reviewing our notes for 2N RC Circuits so far.
We use the Rigol MSO5074 Mixed Signal Oscilloscope to generate our test signal and examine our waveforms.
We use the Kaisi S-160 45x30cm Repair Mat as our workspace.
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MECHANIC Hard Brush![]() |
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