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More on more battery...

George - I just finsihed the quest for a simple battery charger that you are enterring! Power zeners didn't work for me...
4 comments posted 5yrs
posted by ht
4 comments posted 5yrs posted by ht

OT Sydney Paralympics 2000

** An object lesson in the ( lack of ) morals in sport. https://www.youtube.com/watch?v=Y5F_ha7d-PI Win at all costs an...
0 comments posted 5yrs
posted by pallison49
0 comments posted 5yrs posted by pallison49

Boss Laser

https://www.dropbox.com/s/zxnwvk8w7pus7sr/Boss_1.jpg?raw=1 https://www.dropbox.com/s/kw5g7l8vmnvrzna/Boss_Lens.jpg?raw=...
36 comments posted 5yrs
posted by jlarkin
36 comments posted 5yrs posted by jlarkin

Bisphosphonates

They're not exactly sure how they work, but they do know they supercharge your immune response and get you to where you...
16 comments posted 5yrs
posted by bloggs.fredbloggs.fred
16 comments posted 5yrs posted by bloggs.fredbloggs.fred

And -- popular RS485 Xcvr 3,3V

And -- question 2 that I may get a "hit" on. Rather than go nuts looking at Digi Key's zillion results, what is a very...
13 comments posted 5yrs
posted by mikerbgr
13 comments posted 5yrs posted by mikerbgr

Largest popular SMD IC package

So I don't spend hours searching. You guys would know -- What is the largest (ease of solderability, in case "I" need t...
11 comments posted 5yrs
posted by mikerbgr
11 comments posted 5yrs posted by mikerbgr

Measuring AC supply frequency

Hi, Back in about 1980 I became curious about the AC supply frequency myth that it was unstable. Possessing an audio ge...
73 comments posted 5yrs
posted by pallison49
73 comments posted 5yrs posted by pallison49

rolling a PCB rev

I have a complex board (32 sch sheets, around 1000 parts) that I want to revise, from rev C to D. I have a schematic wi...
41 comments posted 5yrs
posted by jlarkin
41 comments posted 5yrs posted by jlarkin

DMM question?

Hi, I have a Keysight U1232A digital meter. True RMS , 6000 count, autoranging & lots of features. https://www.keysight...
58 comments posted 5yrs
posted by pallison49
58 comments posted 5yrs posted by pallison49

Change State of Incorporation

I'm considering moving my official residence to Florida for tax reasons, but it won't happen right away. In the mean ti...
3 comments posted 5yrs
posted by gnuarm.deletethisbit
3 comments posted 5yrs posted by gnuarm.deletethisbit

More battery charger, voltage shunt reference.

Hi all, this is mostly a continuation of CD's solar battery charger thread. I was thinking of using a power zener as a...
115 comments posted 5yrs
posted by ggherold
115 comments posted 5yrs posted by ggherold

Auction in Fremont, ca NOW

No connection to this, just posting for NorCal bargain hunters. Be quick, lots start closing in 2 hours, around 11AM PS...
3 comments posted 5yrs
posted by wwm
3 comments posted 5yrs posted by wwm

favorite LDO?

Any preferences for a positive low-dropout linear regulator? I'd like Leaded package, preferably no power pad 5v or so...
5 comments posted 5yrs
posted by jlarkin
5 comments posted 5yrs posted by jlarkin

OT McElligot's Pool

McElligot's Pool ?This book is dedicated to T.R. Geisel of Springfield Mass., The Worlds Greatest Authority on Blackfis...
54 comments posted 5yrs
posted by ggherold
54 comments posted 5yrs posted by ggherold