diff --git a/figures/adc2.svg b/figures/adc2.svg
new file mode 100644
index 0000000..f777531
--- /dev/null
+++ b/figures/adc2.svg
@@ -0,0 +1,133 @@
+
+
+
\ No newline at end of file
diff --git a/figures/preamp.svg b/figures/preamp.svg
index 45da71e..38df3d6 100644
--- a/figures/preamp.svg
+++ b/figures/preamp.svg
@@ -1,178 +1,118 @@
-