And today another unit arrived from China. It is smaller (1 inch tall by 4.25" wide) yet it also includes a very nice amplifier circuit, is also 5v regulated (so it will work on 6v or 12v) and the buttons are set up differently. It appears to have been assembled carefully and well. It has plenty of volume. And FM seems to pull in fine (I haven't tried BT or either memory card slot). Still amazing to me such a small unit can output so much sound. Like the other one it has equalizer, stereo, bluetooth (bluetooth antenna seems very nicely done on this board), etc. Aside from a couple of differences (different date, different board layout, different capacitor in one place), it is very similar.
I have learned the USB stick or the Micro SD card can not be set up with folders in which files are then stored on any of these I've tested so far. The units can't "see" folders, but they can see individual files and if those files are numbered (example 01 - Louie, Louie.mp3) they will be played sequentially. Folders cause the units to simply play dead. FAT32 is ok...I haven't tried others. Irritating baby steps. Wish somebody out there had compiled data on these, but I haven't found much that addresses all the abilities. Maybe that is up to me, eh? I've also discovered there are many of these units out there which basically look the same but are different. Some use a different circuit scheme.
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
