good theory of operation

misc/good_theory_of_operation_notes.txt

@@ -0,0 +1,15 @@
+what is useful about this theory of operation:
+
+
+first, it has the block diagram
+
+
+second, it has succinct explanations of what voltages / signals to expect
+
+
+third, it is simple enough to grasp quickly
+    more indepth explanations could be saved for a later block diagram.
+
+
+
+taken from thermal arc 201ts welder.

misc/rigol_ds1054z

@@ -1,4 +1,4 @@
-i owned a ds1054z and it took me years to learn:
+i owned a ds1054z and it took me years to learn that:
 
 the scope is slow when using the knobs, however
 it is really powerful (although i have not tested personally)
@@ -45,3 +45,8 @@ features.
 
 as another option the analog discovery might do some of the above as well.
 no idea which is better / easier. would have to use both and do a review.
+
+with the usb type logic analyzer scopes you have something you can
+stick with a beagleboard on a customers site and do some potentially
+easy but still powerful logging. basically you get the software and the
+dacs of the usb boxes with the linux of the sbc.