diff --git a/opensdx.pro.kicad_sch b/opensdx.pro.kicad_sch
index 25e1398..b2a2d18 100644
--- a/opensdx.pro.kicad_sch
+++ b/opensdx.pro.kicad_sch
@@ -293,17 +293,17 @@
         )
       )
     )
-    (symbol "Amplifier_Operational:LM358" (pin_names (offset 0.127)) (in_bom yes) (on_board yes)
+    (symbol "Amplifier_Operational:TL072" (pin_names (offset 0.127)) (in_bom yes) (on_board yes)
       (property "Reference" "U" (id 0) (at 0 5.08 0)
         (effects (font (size 1.27 1.27)) (justify left))
       )
-      (property "Value" "LM358" (id 1) (at 0 -5.08 0)
+      (property "Value" "TL072" (id 1) (at 0 -5.08 0)
         (effects (font (size 1.27 1.27)) (justify left))
       )
       (property "Footprint" "" (id 2) (at 0 0 0)
         (effects (font (size 1.27 1.27)) hide)
       )
-      (property "Datasheet" "http://www.ti.com/lit/ds/symlink/lm2904-n.pdf" (id 3) (at 0 0 0)
+      (property "Datasheet" "http://www.ti.com/lit/ds/symlink/tl071.pdf" (id 3) (at 0 0 0)
         (effects (font (size 1.27 1.27)) hide)
       )
       (property "ki_locked" "" (id 4) (at 0 0 0)
@@ -312,13 +312,13 @@
       (property "ki_keywords" "dual opamp" (id 5) (at 0 0 0)
         (effects (font (size 1.27 1.27)) hide)
       )
-      (property "ki_description" "Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8" (id 6) (at 0 0 0)
+      (property "ki_description" "Dual Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8" (id 6) (at 0 0 0)
         (effects (font (size 1.27 1.27)) hide)
       )
       (property "ki_fp_filters" "SOIC*3.9x4.9mm*P1.27mm* DIP*W7.62mm* TO*99* OnSemi*Micro8* TSSOP*3x3mm*P0.65mm* TSSOP*4.4x3mm*P0.65mm* MSOP*3x3mm*P0.65mm* SSOP*3.9x4.9mm*P0.635mm* LFCSP*2x2mm*P0.5mm* *SIP* SOIC*5.3x6.2mm*P1.27mm*" (id 7) (at 0 0 0)
         (effects (font (size 1.27 1.27)) hide)
       )
-      (symbol "LM358_1_1"
+      (symbol "TL072_1_1"
         (polyline
           (pts
             (xy -5.08 5.08)
@@ -342,7 +342,7 @@
           (number "3" (effects (font (size 1.27 1.27))))
         )
       )
-      (symbol "LM358_2_1"
+      (symbol "TL072_2_1"
         (polyline
           (pts
             (xy -5.08 5.08)
@@ -366,91 +366,7 @@
           (number "7" (effects (font (size 1.27 1.27))))
         )
       )
-      (symbol "LM358_3_1"
-        (pin power_in line (at -2.54 -7.62 90) (length 3.81)
-          (name "V-" (effects (font (size 1.27 1.27))))
-          (number "4" (effects (font (size 1.27 1.27))))
-        )
-        (pin power_in line (at -2.54 7.62 270) (length 3.81)
-          (name "V+" (effects (font (size 1.27 1.27))))
-          (number "8" (effects (font (size 1.27 1.27))))
-        )
-      )
-    )
-    (symbol "Amplifier_Operational:LM4562" (pin_names (offset 0.127)) (in_bom yes) (on_board yes)
-      (property "Reference" "U" (id 0) (at 0 5.08 0)
-        (effects (font (size 1.27 1.27)) (justify left))
-      )
-      (property "Value" "LM4562" (id 1) (at 0 -5.08 0)
-        (effects (font (size 1.27 1.27)) (justify left))
-      )
-      (property "Footprint" "" (id 2) (at 0 0 0)
-        (effects (font (size 1.27 1.27)) hide)
-      )
-      (property "Datasheet" "http://www.ti.com/lit/ds/symlink/lm4562.pdf" (id 3) (at 0 0 0)
-        (effects (font (size 1.27 1.27)) hide)
-      )
-      (property "ki_locked" "" (id 4) (at 0 0 0)
-        (effects (font (size 1.27 1.27)))
-      )
-      (property "ki_keywords" "dual opamp" (id 5) (at 0 0 0)
-        (effects (font (size 1.27 1.27)) hide)
-      )
-      (property "ki_description" "Dual High-Performance, High-Fidelity Audio Operational Amplifier, DIP-8/SOIC-8/TO-99-8" (id 6) (at 0 0 0)
-        (effects (font (size 1.27 1.27)) hide)
-      )
-      (property "ki_fp_filters" "SOIC*3.9x4.9mm*P1.27mm* DIP*W7.62mm* TO*99* OnSemi*Micro8* TSSOP*3x3mm*P0.65mm* TSSOP*4.4x3mm*P0.65mm* MSOP*3x3mm*P0.65mm* SSOP*3.9x4.9mm*P0.635mm* LFCSP*2x2mm*P0.5mm* *SIP* SOIC*5.3x6.2mm*P1.27mm*" (id 7) (at 0 0 0)
-        (effects (font (size 1.27 1.27)) hide)
-      )
-      (symbol "LM4562_1_1"
-        (polyline
-          (pts
-            (xy -5.08 5.08)
-            (xy 5.08 0)
-            (xy -5.08 -5.08)
-            (xy -5.08 5.08)
-          )
-          (stroke (width 0.254) (type default) (color 0 0 0 0))
-          (fill (type background))
-        )
-        (pin output line (at 7.62 0 180) (length 2.54)
-          (name "~" (effects (font (size 1.27 1.27))))
-          (number "1" (effects (font (size 1.27 1.27))))
-        )
-        (pin input line (at -7.62 -2.54 0) (length 2.54)
-          (name "-" (effects (font (size 1.27 1.27))))
-          (number "2" (effects (font (size 1.27 1.27))))
-        )
-        (pin input line (at -7.62 2.54 0) (length 2.54)
-          (name "+" (effects (font (size 1.27 1.27))))
-          (number "3" (effects (font (size 1.27 1.27))))
-        )
-      )
-      (symbol "LM4562_2_1"
-        (polyline
-          (pts
-            (xy -5.08 5.08)
-            (xy 5.08 0)
-            (xy -5.08 -5.08)
-            (xy -5.08 5.08)
-          )
-          (stroke (width 0.254) (type default) (color 0 0 0 0))
-          (fill (type background))
-        )
-        (pin input line (at -7.62 2.54 0) (length 2.54)
-          (name "+" (effects (font (size 1.27 1.27))))
-          (number "5" (effects (font (size 1.27 1.27))))
-        )
-        (pin input line (at -7.62 -2.54 0) (length 2.54)
-          (name "-" (effects (font (size 1.27 1.27))))
-          (number "6" (effects (font (size 1.27 1.27))))
-        )
-        (pin output line (at 7.62 0 180) (length 2.54)
-          (name "~" (effects (font (size 1.27 1.27))))
-          (number "7" (effects (font (size 1.27 1.27))))
-        )
-      )
-      (symbol "LM4562_3_1"
+      (symbol "TL072_3_1"
         (pin power_in line (at -2.54 -7.62 90) (length 3.81)
           (name "V-" (effects (font (size 1.27 1.27))))
           (number "4" (effects (font (size 1.27 1.27))))
@@ -2110,15 +2026,15 @@
   (junction (at 223.52 27.94) (diameter 0) (color 0 0 0 0)
     (uuid 8a97eb42-2dba-4407-a7de-3843e0ac4751)
   )
-  (junction (at 129.54 22.86) (diameter 0) (color 0 0 0 0)
-    (uuid 9082e097-66ca-45fa-849b-975266ad2221)
-  )
   (junction (at 100.33 156.21) (diameter 0) (color 0 0 0 0)
     (uuid 911ac92f-dc8f-473f-a819-6ec44a97da57)
   )
   (junction (at 259.08 30.48) (diameter 0) (color 0 0 0 0)
     (uuid 912ffd03-dc69-4763-b145-567882d2ddb6)
   )
+  (junction (at 129.54 22.86) (diameter 0) (color 0 0 0 0)
+    (uuid a3537a34-bbf6-46a9-94ba-d3ed1793992f)
+  )
   (junction (at 241.3 72.39) (diameter 0) (color 0 0 0 0)
     (uuid a4a37850-ef95-4439-8b65-c0c50d0d72df)
   )
@@ -3642,6 +3558,27 @@
     (pin "2" (uuid 2144d27e-5345-4bf5-82be-922b27f44b3c))
   )
 
+  (symbol (lib_id "Amplifier_Operational:TL072") (at 232.41 30.48 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 0e52ecd9-e7d3-45a1-a98c-cc85ae961251)
+    (property "Reference" "U11" (id 0) (at 232.41 21.7002 0))
+    (property "Value" "TL072" (id 1) (at 232.41 24.2371 0))
+    (property "Footprint" "" (id 2) (at 232.41 30.48 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/tl071.pdf" (id 3) (at 232.41 30.48 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid be974776-b73e-43e7-9f01-aeedfc82478b))
+    (pin "2" (uuid 268e6acc-ee15-485f-b6f7-d39a01f18e03))
+    (pin "3" (uuid 05f1d3ae-c63c-4de5-99ba-69ce6dfe0994))
+    (pin "5" (uuid 9347d409-9a6f-4411-8fa7-73abe1001e14))
+    (pin "6" (uuid 8b16d995-55c0-49d1-a1d1-205892cfe8d6))
+    (pin "7" (uuid 0f708805-55de-4ff5-ae1e-f94e7e1743f8))
+    (pin "4" (uuid 77c62cf3-36c5-45f9-bac8-6575cced32cc))
+    (pin "8" (uuid e068631e-2f76-461f-9239-2dac6d3a8434))
+  )
+
   (symbol (lib_id "74xx:74HC14") (at 100.965 34.29 0) (unit 7)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 11171ff2-de09-4625-be02-cad53cbe1553)
@@ -3752,6 +3689,27 @@
     (pin "1" (uuid dd5e516e-1ec7-4618-81b7-02914cb92070))
   )
 
+  (symbol (lib_id "Amplifier_Operational:TL072") (at 157.48 67.31 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 1ce0b8e4-b599-45f8-930b-97f981affd48)
+    (property "Reference" "U10" (id 0) (at 157.48 58.5302 0))
+    (property "Value" "TL072" (id 1) (at 157.48 61.0671 0))
+    (property "Footprint" "" (id 2) (at 157.48 67.31 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/tl071.pdf" (id 3) (at 157.48 67.31 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 588598a1-e204-4af7-9335-9a117de47355))
+    (pin "2" (uuid f6bcf8ac-f5a6-4946-92a7-43553eee825a))
+    (pin "3" (uuid 1380f91c-0976-47e4-ba0d-60f7bb54c22e))
+    (pin "5" (uuid 2242c2de-ed8c-4f4f-a9f1-165e83c36414))
+    (pin "6" (uuid bb838e99-a56d-4f60-92c3-f360f098fac4))
+    (pin "7" (uuid 5a4cd4f8-0571-4f8e-9321-c92683c129b0))
+    (pin "4" (uuid f841cab4-f976-478a-8328-34cf27aad634))
+    (pin "8" (uuid b20fd195-1cf3-4e56-b4ee-92a982a2f703))
+  )
+
   (symbol (lib_id "Device:R") (at 182.88 72.39 180) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 1efd5fbc-7190-4326-af49-e4dfb1a28279)
@@ -3994,6 +3952,31 @@
     (pin "1" (uuid 421b8b08-6fd7-4d36-a143-efd41cbfafb0))
   )
 
+  (symbol (lib_id "Amplifier_Operational:TL072") (at 172.72 30.48 0) (unit 3)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 320c4831-d108-487d-b58c-c68d935468be)
+    (property "Reference" "U10" (id 0) (at 170.815 29.6453 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Value" "TL072" (id 1) (at 170.815 32.1822 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Footprint" "" (id 2) (at 172.72 30.48 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/tl071.pdf" (id 3) (at 172.72 30.48 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid af5440f0-87fa-4393-b5cf-d7895e5b607d))
+    (pin "2" (uuid 269646f9-4f2b-4e6d-8071-8a00eb2c665a))
+    (pin "3" (uuid b1fe528f-23be-427f-a3ed-e0f615ad0733))
+    (pin "5" (uuid aa54a781-92b9-482b-9867-508e613212bb))
+    (pin "6" (uuid 358e3f56-3fff-4475-a184-11de6262cdf8))
+    (pin "7" (uuid 9c89a4c2-b0b1-4742-95a0-d7a407778a13))
+    (pin "4" (uuid ea6e410f-24de-4286-8d79-7891e704b484))
+    (pin "8" (uuid f2e6dc42-48d4-49d5-92df-ff68d382a1c9))
+  )
+
   (symbol (lib_id "power:+3.3VADC") (at 182.88 91.44 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 32842bfb-93a2-4229-b33c-a62b2a149556)
@@ -4158,27 +4141,6 @@
     (pin "1" (uuid b24871e9-d847-4071-b594-b9ad8cda4e49))
   )
 
-  (symbol (lib_id "Amplifier_Operational:LM4562") (at 156.21 101.6 0) (mirror x) (unit 1)
-    (in_bom yes) (on_board yes) (fields_autoplaced)
-    (uuid 3f755d81-fada-4644-ad5c-fd9bb94488df)
-    (property "Reference" "U7" (id 0) (at 156.21 110.3798 0))
-    (property "Value" "LM4562" (id 1) (at 156.21 107.8429 0))
-    (property "Footprint" "" (id 2) (at 156.21 101.6 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/lm4562.pdf" (id 3) (at 156.21 101.6 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (pin "1" (uuid dca8b93d-5b39-4d07-9082-23e9b17d549f))
-    (pin "2" (uuid 82b4be0a-787c-42ce-b81a-47020465d8b2))
-    (pin "3" (uuid 1483ec10-909f-4ecb-9a2c-590174b187d3))
-    (pin "5" (uuid 270836ee-d7de-4a28-9867-69e6f9e27367))
-    (pin "6" (uuid 318fb129-1c3c-4f59-b103-a45cbd2c8339))
-    (pin "7" (uuid 44e3c7e6-87ed-4472-aaa9-43bf925d9fb5))
-    (pin "4" (uuid 36f86a6e-c2a9-41be-ba08-70c21d9b47db))
-    (pin "8" (uuid fd48cd63-3df6-432b-a7ef-9b3935d7a6f8))
-  )
-
   (symbol (lib_id "Connector_Generic:Conn_02x04_Counter_Clockwise") (at 266.065 132.08 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 3fa09a39-4974-4a6c-a694-0f526d5636c8)
@@ -4253,27 +4215,6 @@
     (pin "1" (uuid c0ea2486-08b2-42e2-a99c-0f7e61f3e298))
   )
 
-  (symbol (lib_id "Amplifier_Operational:LM358") (at 232.41 30.48 0) (unit 1)
-    (in_bom yes) (on_board yes) (fields_autoplaced)
-    (uuid 43059628-1d86-4e3a-8663-8c04fc51eb85)
-    (property "Reference" "U10" (id 0) (at 232.41 21.7002 0))
-    (property "Value" "LM358" (id 1) (at 232.41 24.2371 0))
-    (property "Footprint" "" (id 2) (at 232.41 30.48 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/lm2904-n.pdf" (id 3) (at 232.41 30.48 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (pin "1" (uuid 5135a01e-daca-4037-871d-8ee15f80f24f))
-    (pin "2" (uuid 9ea26035-f28c-4da1-9811-156ecf0c6570))
-    (pin "3" (uuid bb5743d8-984e-445d-991b-01a0fec338af))
-    (pin "5" (uuid dd35a4be-6f0a-4204-90b3-06a2f7e1262f))
-    (pin "6" (uuid 386cbdee-7b8a-400f-8418-5b2c2da7ee57))
-    (pin "7" (uuid 0b203dee-c6c0-4e0c-aa7e-fba5db213c0a))
-    (pin "4" (uuid d58d6fe7-490c-4377-b4c1-a0ab80356e08))
-    (pin "8" (uuid 352f8fe7-6e19-4da2-9f9f-9e43f2235823))
-  )
-
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     (uuid 43204522-6598-46fe-b406-3f97da5aee5e)
@@ -4457,6 +4398,27 @@
     (pin "1" (uuid 6cfeb2be-cf56-462e-b0e2-e52a151984f8))
   )
 
+  (symbol (lib_id "Amplifier_Operational:TL072") (at 156.21 101.6 0) (unit 1)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 4e3086e4-8906-407b-8876-687b2fd3d313)
+    (property "Reference" "U7" (id 0) (at 156.21 92.8202 0))
+    (property "Value" "TL072" (id 1) (at 156.21 95.3571 0))
+    (property "Footprint" "" (id 2) (at 156.21 101.6 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/tl071.pdf" (id 3) (at 156.21 101.6 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 16633148-bcc6-4738-8725-c00a5ff3d5f0))
+    (pin "2" (uuid 9c544abc-2ef6-4352-94ab-7b783d59f422))
+    (pin "3" (uuid 15e0ced5-b9ba-49d8-89f4-717b8a0a1fe2))
+    (pin "5" (uuid 2242c2de-ed8c-4f4f-a9f1-165e83c36414))
+    (pin "6" (uuid bb838e99-a56d-4f60-92c3-f360f098fac4))
+    (pin "7" (uuid 5a4cd4f8-0571-4f8e-9321-c92683c129b0))
+    (pin "4" (uuid f841cab4-f976-478a-8328-34cf27aad634))
+    (pin "8" (uuid b20fd195-1cf3-4e56-b4ee-92a982a2f703))
+  )
+
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     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 51315859-ac0f-445f-bc58-893823c5e485)
@@ -4525,31 +4487,6 @@
     (pin "2" (uuid 7533deec-78a9-4abc-80cf-8f9f0962b3ce))
   )
 
-  (symbol (lib_id "Amplifier_Operational:LM358") (at 172.72 30.48 0) (unit 3)
-    (in_bom yes) (on_board yes) (fields_autoplaced)
-    (uuid 5b03a8d5-3c6e-4537-8ee9-f28ce1507e6c)
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-    (property "Value" "LM358" (id 1) (at 170.815 32.1822 0)
-      (effects (font (size 1.27 1.27)) (justify left))
-    )
-    (property "Footprint" "" (id 2) (at 172.72 30.48 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/lm2904-n.pdf" (id 3) (at 172.72 30.48 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (pin "1" (uuid 96263909-1df7-436c-9e66-84386884f2c4))
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-    (pin "7" (uuid 0ca1c657-1485-4687-937b-2754e21df37b))
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-    (pin "8" (uuid cad0c390-c6d4-4aa5-8513-8d882261eb6a))
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     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 5ba7b60f-1246-410b-bf81-0cc77535d0d9)
@@ -4771,6 +4708,27 @@
     (pin "1" (uuid bb01c9bb-3604-49d5-a28c-ad3bb0ab245a))
   )
 
+  (symbol (lib_id "Amplifier_Operational:TL072") (at 251.46 66.04 0) (unit 2)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid 6cdd0ef3-b2cf-48ed-ba70-6dc5cabe3f8a)
+    (property "Reference" "U7" (id 0) (at 251.46 57.2602 0))
+    (property "Value" "TL072" (id 1) (at 251.46 59.7971 0))
+    (property "Footprint" "" (id 2) (at 251.46 66.04 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/tl071.pdf" (id 3) (at 251.46 66.04 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid 983adb85-f9a5-48c4-ac9c-6ef5fc72caea))
+    (pin "2" (uuid fc42cfbf-bda0-4332-925d-f161f9abd82d))
+    (pin "3" (uuid c5eac244-c4e5-4cf2-925f-368b175c396b))
+    (pin "5" (uuid b5be1989-77e9-4a10-adee-f642fea6acb7))
+    (pin "6" (uuid e724657a-3ec2-499d-b1aa-7837c7179637))
+    (pin "7" (uuid b943b30a-faa0-4cf4-88cc-a821e66b47b3))
+    (pin "4" (uuid 3cf810ba-95a2-48fe-bfb5-484c9a9c2cf7))
+    (pin "8" (uuid 1c362f90-9bb7-416c-9344-0209b1c306b7))
+  )
+
   (symbol (lib_id "Connector_Generic:Conn_01x02") (at 20.955 32.385 180) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 6ff947c0-ac3f-43c6-accb-a30a25c98fda)
@@ -4975,31 +4933,6 @@
     (pin "1" (uuid 018d6064-0721-412d-b9fb-3e3384e83d7c))
   )
 
-  (symbol (lib_id "Amplifier_Operational:LM4562") (at 132.08 30.48 0) (unit 3)
-    (in_bom yes) (on_board yes) (fields_autoplaced)
-    (uuid 81fce2b8-eb2c-4007-9a70-451da53e06a3)
-    (property "Reference" "U7" (id 0) (at 130.175 29.6453 0)
-      (effects (font (size 1.27 1.27)) (justify left))
-    )
-    (property "Value" "LM4562" (id 1) (at 130.175 32.1822 0)
-      (effects (font (size 1.27 1.27)) (justify left))
-    )
-    (property "Footprint" "" (id 2) (at 132.08 30.48 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/lm4562.pdf" (id 3) (at 132.08 30.48 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (pin "1" (uuid a062c774-baf3-440c-a97c-e4f667368c39))
-    (pin "2" (uuid 28abd78c-9c6e-44b6-be7f-3b83f8a611b2))
-    (pin "3" (uuid 2044790b-8813-41d1-89a6-20315ec769c5))
-    (pin "5" (uuid c4d131c4-3c44-4a8c-a69f-943ac1ae7e0e))
-    (pin "6" (uuid 2ec69a5c-e3bb-420f-bd0e-5c5043c6a0c3))
-    (pin "7" (uuid f8652122-1c24-4d53-95db-f0a0edee859b))
-    (pin "4" (uuid 97f6034f-fb28-4c2d-b523-a71b18f51155))
-    (pin "8" (uuid 1132483d-8e0b-4eb3-9710-742ba7ceb36a))
-  )
-
   (symbol (lib_id "Connector:TestPoint") (at 262.89 59.69 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 833696ee-4c8b-44c8-98c5-4175cea98397)
@@ -5080,27 +5013,6 @@
     (pin "1" (uuid 2a0c08d5-d9af-4c4b-b09c-5dc0f6f51cd5))
   )
 
-  (symbol (lib_id "Amplifier_Operational:LM358") (at 251.46 66.04 0) (unit 2)
-    (in_bom yes) (on_board yes) (fields_autoplaced)
-    (uuid 89f869b6-045f-4d85-8692-b6024535fca2)
-    (property "Reference" "U10" (id 0) (at 251.46 57.2602 0))
-    (property "Value" "LM358" (id 1) (at 251.46 59.7971 0))
-    (property "Footprint" "" (id 2) (at 251.46 66.04 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/lm2904-n.pdf" (id 3) (at 251.46 66.04 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (pin "1" (uuid c1f65392-4bf7-41cf-82ca-d5a45f1fe6c9))
-    (pin "2" (uuid 70ce53e5-b967-4c54-b666-9c97d9f51fce))
-    (pin "3" (uuid d5adf6da-d152-49c9-9b0d-a5c7b7066830))
-    (pin "5" (uuid bad5073f-c769-4e1d-9e2f-86129b7a7360))
-    (pin "6" (uuid c54fb029-bd79-456c-a829-11c31492ae5d))
-    (pin "7" (uuid a482eee9-135c-4cf8-9fce-7c8875748dad))
-    (pin "4" (uuid 898b5412-c4e7-4fcf-b347-58ee903e2b3f))
-    (pin "8" (uuid b46b9ab0-2f89-4354-b0fa-9957e9adeb4c))
-  )
-
   (symbol (lib_id "Device:R") (at 152.4 93.98 90) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 8c6919d4-8ebe-4194-ba85-cf0142e9216c)
@@ -5472,27 +5384,6 @@
     (pin "1" (uuid e7368f23-8a23-4185-a11d-309103f016fd))
   )
 
-  (symbol (lib_id "Amplifier_Operational:LM4562") (at 157.48 67.31 0) (mirror x) (unit 2)
-    (in_bom yes) (on_board yes) (fields_autoplaced)
-    (uuid b178950a-c106-448e-8c87-6050bc2563a4)
-    (property "Reference" "U7" (id 0) (at 157.48 74.4204 0))
-    (property "Value" "LM4562" (id 1) (at 157.48 76.9573 0))
-    (property "Footprint" "" (id 2) (at 157.48 67.31 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/lm4562.pdf" (id 3) (at 157.48 67.31 0)
-      (effects (font (size 1.27 1.27)) hide)
-    )
-    (pin "1" (uuid 569f6a53-627c-4411-ad75-5878199cb6ed))
-    (pin "2" (uuid fbe352c0-da32-48d7-9065-8493ceaefccc))
-    (pin "3" (uuid 1a0977a9-ddbd-46a8-909a-a3a93eabf6e6))
-    (pin "5" (uuid c9ebcf86-674e-46e9-b547-aaddc69ea050))
-    (pin "6" (uuid 533f0087-9f56-4484-881f-c0f06c39f183))
-    (pin "7" (uuid 486b1226-ed40-40c5-bc20-1b086babfeac))
-    (pin "4" (uuid 49f3cfe1-2373-413f-9e3c-0964a3fefd71))
-    (pin "8" (uuid 694ab021-71fd-41cc-afae-39a84601d263))
-  )
-
   (symbol (lib_id "Device:C") (at 76.835 34.29 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid b3c56fe3-4408-419b-ace2-007df43715cb)
@@ -5675,7 +5566,7 @@
   (symbol (lib_id "MCU_RaspberryPi_and_Boards:Pico") (at 241.3 120.65 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid c17d4a71-8ee4-460c-abe5-39168c3a751f)
-    (property "Reference" "U11" (id 0) (at 241.3 90.4072 0))
+    (property "Reference" "U12" (id 0) (at 241.3 90.4072 0))
     (property "Value" "Pico" (id 1) (at 241.3 92.9441 0))
     (property "Footprint" "MCU_RaspberryPi_and_Boards:RPi_Pico_SMD_TH" (id 2) (at 241.3 120.65 90)
       (effects (font (size 1.27 1.27)) hide)
@@ -5757,6 +5648,31 @@
     (pin "1" (uuid 42d73132-d529-4cc6-bd1d-99f1cc4d581a))
   )
 
+  (symbol (lib_id "Amplifier_Operational:TL072") (at 132.08 30.48 0) (unit 3)
+    (in_bom yes) (on_board yes) (fields_autoplaced)
+    (uuid c404e2ff-53b8-4a2e-803f-fde2ca690464)
+    (property "Reference" "U7" (id 0) (at 130.175 29.6453 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Value" "TL072" (id 1) (at 130.175 32.1822 0)
+      (effects (font (size 1.27 1.27)) (justify left))
+    )
+    (property "Footprint" "" (id 2) (at 132.08 30.48 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (property "Datasheet" "http://www.ti.com/lit/ds/symlink/tl071.pdf" (id 3) (at 132.08 30.48 0)
+      (effects (font (size 1.27 1.27)) hide)
+    )
+    (pin "1" (uuid c0e8ed79-b191-424e-b6f8-092906b498f2))
+    (pin "2" (uuid d19e237a-ecb8-41ea-99da-b811a86ced6e))
+    (pin "3" (uuid 87efa3c7-50e3-4b3c-a12e-85ec401a6157))
+    (pin "5" (uuid 2242c2de-ed8c-4f4f-a9f1-165e83c36414))
+    (pin "6" (uuid bb838e99-a56d-4f60-92c3-f360f098fac4))
+    (pin "7" (uuid 5a4cd4f8-0571-4f8e-9321-c92683c129b0))
+    (pin "4" (uuid f841cab4-f976-478a-8328-34cf27aad634))
+    (pin "8" (uuid b20fd195-1cf3-4e56-b4ee-92a982a2f703))
+  )
+
   (symbol (lib_id "Connector:TestPoint") (at 134.62 59.69 0) (unit 1)
     (in_bom yes) (on_board yes)
     (uuid c587351e-3452-4e4d-abc8-c6ab30116b05)
@@ -6749,14 +6665,14 @@
     (path "/5f55b0de-b376-46c4-9bee-dffc44f395ad"
       (reference "U6") (unit 1) (value "74HC14") (footprint "")
     )
-    (path "/3f755d81-fada-4644-ad5c-fd9bb94488df"
-      (reference "U7") (unit 1) (value "LM4562") (footprint "")
+    (path "/4e3086e4-8906-407b-8876-687b2fd3d313"
+      (reference "U7") (unit 1) (value "TL072") (footprint "")
     )
-    (path "/b178950a-c106-448e-8c87-6050bc2563a4"
-      (reference "U7") (unit 2) (value "LM4562") (footprint "")
+    (path "/6cdd0ef3-b2cf-48ed-ba70-6dc5cabe3f8a"
+      (reference "U7") (unit 2) (value "TL072") (footprint "")
     )
-    (path "/81fce2b8-eb2c-4007-9a70-451da53e06a3"
-      (reference "U7") (unit 3) (value "LM4562") (footprint "")
+    (path "/c404e2ff-53b8-4a2e-803f-fde2ca690464"
+      (reference "U7") (unit 3) (value "TL072") (footprint "")
     )
     (path "/332a8567-55dd-4039-a48c-eb97f33599a0"
       (reference "U8") (unit 1) (value "74HC14") (footprint "")
@@ -6764,17 +6680,17 @@
     (path "/65db4226-33a8-4398-b56e-b036b9a920b2"
       (reference "U9") (unit 1) (value "74HC14") (footprint "")
     )
-    (path "/43059628-1d86-4e3a-8663-8c04fc51eb85"
-      (reference "U10") (unit 1) (value "LM358") (footprint "")
+    (path "/1ce0b8e4-b599-45f8-930b-97f981affd48"
+      (reference "U10") (unit 1) (value "TL072") (footprint "")
     )
-    (path "/89f869b6-045f-4d85-8692-b6024535fca2"
-      (reference "U10") (unit 2) (value "LM358") (footprint "")
+    (path "/320c4831-d108-487d-b58c-c68d935468be"
+      (reference "U10") (unit 3) (value "TL072") (footprint "")
     )
-    (path "/5b03a8d5-3c6e-4537-8ee9-f28ce1507e6c"
-      (reference "U10") (unit 3) (value "LM358") (footprint "")
+    (path "/0e52ecd9-e7d3-45a1-a98c-cc85ae961251"
+      (reference "U11") (unit 1) (value "TL072") (footprint "")
     )
     (path "/c17d4a71-8ee4-460c-abe5-39168c3a751f"
-      (reference "U11") (unit 1) (value "Pico") (footprint "MCU_RaspberryPi_and_Boards:RPi_Pico_SMD_TH")
+      (reference "U12") (unit 1) (value "Pico") (footprint "MCU_RaspberryPi_and_Boards:RPi_Pico_SMD_TH")
     )
   )
 )