diff --git a/amp_or_whatever-backups/amp_or_whatever-2025-11-18_140642.zip b/amp_or_whatever-backups/amp_or_whatever-2025-11-18_140642.zip
new file mode 100644
index 0000000..d5a2e9b
Binary files /dev/null and b/amp_or_whatever-backups/amp_or_whatever-2025-11-18_140642.zip differ
diff --git a/amp_or_whatever.kicad_sch b/amp_or_whatever.kicad_sch
index 886e238..c19eaa2 100644
--- a/amp_or_whatever.kicad_sch
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 		(at 44.45 175.26 180)
@@ -8141,6 +7047,142 @@
 			)
 		)
 	)
+	(symbol
+		(lib_id "Device:R")
+		(at 83.82 179.07 90)
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+				(font
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+			(uuid "977889c6-9756-4e18-90dc-849aec14ee72")
+		)
+		(instances
+			(project ""
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+					(reference "R19")
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+	(symbol
+		(lib_id "Device:R")
+		(at 114.3 181.61 90)
+		(unit 1)
+		(exclude_from_sim no)
+		(in_bom yes)
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+		(dnp no)
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+		(uuid "c0efb9b7-573d-4cd3-a695-cc025395e564")
+		(property "Reference" "R20"
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+				(font
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+		(property "Footprint" ""
+			(at 114.3 183.388 90)
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+				(font
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+		(property "Datasheet" "~"
+			(at 114.3 181.61 0)
+			(effects
+				(font
+					(size 1.27 1.27)
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+				(hide yes)
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+		(property "Description" "Resistor"
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+				(hide yes)
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+		(pin "2"
+			(uuid "104d008e-cc45-4871-91d9-3aaef9b270cf")
+		)
+		(pin "1"
+			(uuid "f5e93138-c067-4f00-8501-068eadcc2d93")
+		)
+		(instances
+			(project "amp_or_whatever"
+				(path "/55ba40a8-7d2c-4f8b-8157-15eb9b1c8d07"
+					(reference "R20")
+					(unit 1)
+				)
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+		)
+	)
 	(symbol
 		(lib_id "Device:Opamp_Quad")
 		(at 299.72 299.72 0)
@@ -8556,7 +7598,7 @@
 	)
 	(symbol
 		(lib_id "Device:Opamp_Quad")
-		(at 560.07 50.8 0)
+		(at 99.06 181.61 0)
 		(unit 3)
 		(exclude_from_sim no)
 		(in_bom yes)
@@ -8565,7 +7607,7 @@
 		(fields_autoplaced yes)
 		(uuid "d5c7617d-c5d5-4967-a979-8779e32070c5")
 		(property "Reference" "U2"
-			(at 560.07 40.64 0)
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 			(effects
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@@ -8573,7 +7615,7 @@
 			)
 		)
 		(property "Value" "Opamp_Quad"
-			(at 560.07 43.18 0)
+			(at 99.06 173.99 0)
 			(effects
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@@ -8581,7 +7623,7 @@
 			)
 		)
 		(property "Footprint" ""
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+			(at 99.06 181.61 0)
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@@ -8590,7 +7632,7 @@
 			)
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 		(property "Datasheet" "~"
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 			(effects
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@@ -8599,7 +7641,7 @@
 			)
 		)
 		(property "Description" "Quad operational amplifier"
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+			(at 99.06 181.61 0)
 			(effects
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@@ -8608,7 +7650,7 @@
 			)
 		)
 		(property "Sim.Library" "${KICAD7_SYMBOL_DIR}/Simulation_SPICE.sp"
-			(at 560.07 50.8 0)
+			(at 99.06 181.61 0)
 			(effects
 				(font
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@@ -8617,7 +7659,7 @@
 			)
 		)
 		(property "Sim.Name" "kicad_builtin_opamp_quad"
-			(at 560.07 50.8 0)
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 			(effects
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@@ -8626,7 +7668,7 @@
 			)
 		)
 		(property "Sim.Device" "SUBCKT"
-			(at 560.07 50.8 0)
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 			(effects
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@@ -8635,7 +7677,7 @@
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 		(property "Sim.Pins" "1=out1 2=in1- 3=in1+ 4=vcc 5=in2+ 6=in2- 7=out2 8=out3 9=in3- 10=in3+ 11=vee 12=in4+ 13=in4- 14=out4"
-			(at 560.07 50.8 0)
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 			(effects
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@@ -8780,74 +7822,6 @@
 			)
 		)
 	)
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-		(at 74.93 179.07 90)
-		(unit 1)
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-		(uuid "e81ae405-4cd4-40ef-bb64-02ae785fc874")
-		(property "Reference" "C12"
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diff --git a/amp_or_whatever.pdf b/amp_or_whatever.pdf
index 201de52..97c5b39 100644
Binary files a/amp_or_whatever.pdf and b/amp_or_whatever.pdf differ