From: Winston on 29 May 2010 00:50 On 5/28/2010 6:42 PM, hamilton wrote: > On 5/28/2010 3:38 PM, Bill Beaty wrote: >> On May 27, 2:54 pm, bobger...(a)protonex.com (Bob Gerber) wrote: >>> >>> Bill Tiller is a respected scientist, but I can't figure this one out. >>> >> >> Because probing into the Unknown must necessarily involve unknowns, >> the line between revolutionary discovery and crackpot delusion is >> fuzzy. > > If Bill had used terms that are standard and not delusion he would get > more credit. > > It sounds like he wants to jump over science. Just in case we have not beaten the dead horse sufficiently, I stumbled across legible copies of the schematic. 1) Turns out the device I was calling an 'oscillator' is just a 3 terminal 5V regulator. The mystery symbol connected to the !Write pin of the EEPROM is the oscillator. I am relieved that the good Dr. is not banging the power to the EEPROM as I earlier supposed. 2) The LED is not a Write indicator as I guessed previously. It glows continuously to indicate the presence of Vdd and will turn off to indicate that the battery needs to be recharged. The op amp and voltage divider mystery is solved. The schematic is part of a 22 page document that starts on "Page 155". See figure 3 on "Page 160": http://www.scientificexploration.org/journal/jse_13_2_dibble.pdf --Winston |