Improved VCA design

adsr_cv_gen_2.sch

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adsr_cv_gen_2.sch-bak

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+	1    9800 3700
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+	2    9550 5900
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+	1    9850 4600
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+	1    8800 5800
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+AR Path="/5FFB63E2/5FFE0181" Ref="D?"  Part="1" 
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+F 0 "D?" H 10300 5600 50  0000 L CNN
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+F 3 "https://www.vishay.com/docs/85751/1n4148ws.pdf" H 10300 5700 50  0001 C CNN
+	1    10300 5700
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+Wire Wire Line
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+$Comp
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+F 3 "http://www.ti.com/lit/ds/symlink/tl081.pdf" H 3800 6650 50  0001 C CNN
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 	1    0    0    -1  
 $EndComp
 $Comp
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modular-adsr-cache.lib

@@ -59,6 +59,41 @@ X V- 6 -100 -300 150 U 50 50 5 1 W
 ENDDRAW
 ENDDEF
 #
+# Amplifier_Operational_TL082
+#
+DEF Amplifier_Operational_TL082 U 0 5 Y Y 3 L N
+F0 "U" 0 200 50 H V L CNN
+F1 "Amplifier_Operational_TL082" 0 -200 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+ALIAS LM358 AD8620 LMC6062 LMC6082 TL062 TL072 TL082 NE5532 SA5532 RC4558 RC4560 RC4580 LMV358 TS912 TSV912IDT TSV912IST TLC272 TLC277 MCP602 OPA1678 OPA2134 OPA2340 OPA2376xxD OPA2376xxDGK MC33078 MC33178 LM4562 OP249 OP275 ADA4075-2 MCP6002-xP MCP6002-xSN MCP6002-xMS LM7332 OPA2333xxD OPA2333xxDGK LMC6482 LT1492 LTC6081xMS8 LM6172 MCP6L92 NJM2043 NJM2114 NJM4556A NJM4558 NJM4559 NJM4560 NJM4580 NJM5532 ADA4807-2ARM OPA2691 LT6234 OPA2356xxD OPA2356xxDGK OPA1612AxD MC33172 OPA1602 TLV2372 LT6237 OPA2277 MCP6022 MCP6V67EMS
+$FPLIST
+ SOIC*3.9x4.9mm*P1.27mm*
+ DIP*W7.62mm*
+ TO*99*
+ OnSemi*Micro8*
+ TSSOP*3x3mm*P0.65mm*
+ TSSOP*4.4x3mm*P0.65mm*
+ MSOP*3x3mm*P0.65mm*
+ SSOP*3.9x4.9mm*P0.635mm*
+ LFCSP*2x2mm*P0.5mm*
+ *SIP*
+ SOIC*5.3x6.2mm*P1.27mm*
+$ENDFPLIST
+DRAW
+P 4 1 1 10 -200 200 200 0 -200 -200 -200 200 f
+P 4 2 1 10 -200 200 200 0 -200 -200 -200 200 f
+X ~ 1 300 0 100 L 50 50 1 1 O
+X - 2 -300 -100 100 R 50 50 1 1 I
+X + 3 -300 100 100 R 50 50 1 1 I
+X + 5 -300 100 100 R 50 50 2 1 I
+X - 6 -300 -100 100 R 50 50 2 1 I
+X ~ 7 300 0 100 L 50 50 2 1 O
+X V- 4 -100 -300 150 U 50 50 3 1 W
+X V+ 8 -100 300 150 D 50 50 3 1 W
+ENDDRAW
+ENDDEF
+#
 # Amplifier_Operational_TL084
 #
 DEF Amplifier_Operational_TL084 U 0 5 Y Y 5 L N
@@ -184,6 +219,29 @@ X Q 9 500 200 150 L 50 50 2 1 O
 ENDDRAW
 ENDDEF
 #
+# Transistor_BJT_BC856
+#
+DEF Transistor_BJT_BC856 Q 0 0 Y N 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "Transistor_BJT_BC856" 200 0 50 H V L CNN
+F2 "Package_TO_SOT_SMD:SOT-23" 200 -75 50 H I L CIN
+F3 "" 0 0 50 H I L CNN
+ALIAS BC808 BC856 BC857 BC858 BC859 BC860 MMBT3906
+$FPLIST
+ SOT?23*
+$ENDFPLIST
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 90 -70 70 -90 50 -50 90 -70 90 -70 F
+X B 1 -200 0 225 R 50 50 1 1 I
+X E 2 100 -200 100 U 50 50 1 1 P
+X C 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
 # Transistor_FET_BS170F
 #
 DEF Transistor_FET_BS170F Q 0 20 Y N 1 F N

modular-adsr.sch

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modular-adsr.sch-bak

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