On 2017-Dec-24, at 12:01 PM, Chuck Guzis via cctalk wrote: > On 12/24/2017 11:15 AM, Rob Jarratt wrote: > >> I think the orange components are capacitors (they are taller than the >> browner ones), but their markings don't seem to hint at the values, some are >> marked "AA4", which does not seem to correspond to any marking scheme I have >> been able to find. Any idea if they *are* capacitors and what the values >> might be? > > My guess is capacitors also.
Noting they are paralleling resistors, they're probably just noise/AC bypass, on the order of 0.01 uF, and not overly consequential to understanding the basic circuit. Again, one can draw it out with the above presumption and then assess whether it makes sense or for alternative functions. > This "SMD Code Book" should be of some value: > > http://www.sphere.bc.ca/download/smd-codebook.pdf > > --Chuck
