The Ware for March 2015 is shown below.
Thanks to Dale Grover for sharing this ware! I had read about this one as a lad, but never laid hands on one…
The Ware for February 2015 is a logic board from an HP 16600 series logic analyzer. Megabytephreak is the winner, thanks for the clear analysis and also helping answer other reader’s questions about the metal fill for etch concentration normalization!
The Ware for February 2015 is shown below.
Eep! I’m late! I blame Chinese New Year.
This one was a tough one to crop: too much makes it too obvious, too little makes it impossible to guess. However, I’m betting that someone out there could probably recognize this ware even if I downsampled all of the part numbers and manufacturer’s logos.
Thanks again to dmo for sharing this ware. I’ll miss visiting your lab!
Judging this one was tough. There were a lot of perfectly good guesses (and some pretty hilarious ones :), but because the advertised purpose of this ware is so weird, sound engineering reasoning need not apply.
What I’m told is that you install this on an electric bike to prevent the motor from burning out. I….don’t really think that’s effective, nor do I really believe it. At the very least, stacking capacitors like this while connecting them with thin copper traces to a terminal block and then wiring them with a long pair of wires to a battery seems to nullify any benefit of equalizing the ESR of capacitors by using a banked array of different values.
Although I think Jeff’s explanation (use as a power filtering cap in car audio) is a much more likely reason…I liked ingo’s thought process in reviewing the ware — knowledgeable, yet skeptical. So I’ll declare ingo as the winner…congrats, email me for your prize!
The Ware for January 2015 is below.
“I love capacitor”
Been in Shenzhen the past two weeks, trying to beat Chinese New Year deadlines, improve my Chinese, and learn more about manufacturing and supply chains. So far, so good. Will have more updates soon!