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c3lingo-interpreter-unit
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Merge development: PCB design fixes

This commit is contained in:
Jannik Beyerstedt 2020-12-13 22:05:00 +01:00
parent 6062153db0 d8e0d7cb9f
commit cdfdfbcc50
11 changed files with 5417 additions and 5552 deletions
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96
README.md
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@ -42,9 +42,9 @@ This results in a signal flow like this: ![](docs/signal-flow.jpg)
### Tasks
- [x] Requirements collection
- [ ] Electrical design draft/ proof of concept (breadboard)
- [ ] Proof of concept validation
- [ ] First PCB layout
- [x] Electrical design draft/ proof of concept (breadboard)
- [x] Proof of concept validation
- [x] First PCB layout
- [ ] More testing/ validation
Help is always appreciated!
@ -55,7 +55,7 @@ Help is always appreciated!
- [x] Microphone summing and line output driver
- [x] Adjustable headphone mix and output volume
- [ ] ESD protection and galvanic isolation of line inputs and outputs
- [ ] VU meter
- [x] VU meter (own PCB)
- [ ] Mute and On-Air buttons
@ -76,8 +76,6 @@ But in our case we just need on/ off and some gain range to adjust for different
TODO: Integrate the On-Air button with it's LEDs
For long-lasting endurance of the microphone level potentiometer, we're using one with conductive plastic as resistor element (Bourns model 91).
#### Line Input/ Input Module
The line input must not be amplified at all, because loudness control of the headphones is done by the headphone amplifier section.
But the differential line-level signal must be converted to a single-ended signal by the input stage.
@ -87,14 +85,18 @@ The second part of that circuit was taken from the [circuitlib audio mixer tutor
TODO: How to achieve galvanic isolation?
TODO: Use https://www.ti.com/product/INA134 for input conversion?
#### Summing
Summing is needed in two places: Creating the sum of all microphones (not adjustable, fixed output gain) and for the headphone mix (one input level adjustable).
A simple summing circuit using one operational amplifier is enough for our application, like in [circuitlib audio mixer tutorial](https://www.circuitlib.com/index.php/tutorials/product/39-how-to-build-an-audio-mixer).
The mixer design uses inverting op-amp circuits, because they require less components and signal routing.
Normally an audio mixer should take care of adding signals in-phase, because otherwise two microphones might cancel each other out.
In our case, there are just two types of summing: All microphones for the interpreter unit's line-out and the individual headphone mixes.
Because the stage input is quite independent of the interpreter's microphones, no special phase/ inversion considerations are needed.
And the microphones connected to our unit will experience the same inversions anyways.
#### Line Output Driver
TODO: Either use https://www.ti.com/product/DRV134 or http://www.thatcorp.com/1600-series_Balanced_Line_Driver_ICs.shtml.
Line Output conversion is done by the [DRV134](https://www.ti.com/product/DRV134) IC.
TODO: How to achieve galvanic isolation?
@ -104,8 +106,17 @@ The headphone output needs a maximum output power of about 0.1 W and should put
For the first draft, we're using one LM386 audio power amplifier even though it has a quite high minimal amplification of factor 20.
#### VU Meter
Because the LM3916 LED bar graph driver is obsolete, we either have to re-create it's function with some comperators or have to use a microcontroller.
When searching for VU meter circuits, many use the LM3916 LED bar graph driver, which already has the right scaling built in.
But this chip is obsolete and not produced any more, so we designed our own chain of comperators to drive a set of LEDs.
#### User Interface Hardware
For the potentiometers, we first wanted to use ones with a conductive plastic resistor element for maximum longevity from Bourns, but these are hard to find with logarithmic scaling.
An affordable and easily obtainable (Reichelt) alternative was found in the Alps RK11K and RK14K series.
They are available in linear and logarithmic scale, as well as single (mono) and dual (stereo) units and have a nice feeling.
Another potentiometer from Omeg was tried, but it had a "jump" in the resistor value at some knob positions.
TODO: On-Air button
## Notes
@ -122,18 +133,65 @@ Approximate prices in Euro.
Connectors and Buttons (User Interface)
| Count | Art. No. | Description | Price |
|-------|--------------------|------------------|-------|
| 1 | Neutrik NCJ 6 FAH | Line Input | 1,27 |
| 1 | Neutrik NC3 FD-LX | Microphone Input | 3,44 |
| 1 | Neutrik NJ3 FP-6-C | Headphone Output | 5,40 |
| 1 | Neutrik NC3 MD-LX | Line Output | 3,22 |
| 1 | Neutrik NAC3 MPA-1 | Main Power Input | 3,33 |
| Count | Art. No. | Description | Price |
|-------|---------------------|---------------------|-------|
| 1 | Neutrik NAC3 MPA-1 | Main Power Input | 3,33 |
| 1 | Neutrik NCJ 6 FAH | Line Input | 1,27 |
| 1 | Neutrik NC3 MD-LX | Line Output | 3,22 |
| 1 | | | TODO |
| 3x1 | Neutrik NC3 FD-LX | Microphone Input | 3,44 |
| 3x1 | Neutrik NJ3 FP-6-C | Headphone Output | 5,40 |
| 3x1 | TODO | Mute Button | TODO |
| 3x1 | TODO | On-Air Button | TODO |
| 3x4 | Alps RK11K1120-A503 | 50K log. Gain/ Vol. | 1,32 |
| 3x1 | Alps RK14K12B0A0R | 50K log. Vol. (st.) | 1,50 |
| 1 | Vishay M64{Y,Z}104 | 100K Trim Pot. | 0,95 |
Sub-Components
| Count | Art. No. | Description | Price |
|-------|--------------------|------------------|--------|
| Count | Art. No. | Description | Price |
|-------|---------------------|---------------------|-------|
| 1 | Traco Power TXL 035-1515D or TOP 60533 | Power Supply | ~48,00 |
PCB Components: TODO when schematic is finished
| Count | Art. No. | Description | Price |
|-------|---------------------|---------------------|-------|
| 3 | NE5534 | Low-noise Op-Amp | 0,54 |
| 8 | LM833 | Generic Op-Amp | 0,88 |
| 3 | LM386N-4 | Audio Power Amp | 0,83 |
| 1 | DRV143 | Line Driver | 4,50 |
| TODO | TODO | El. Capacitor | TODO |
| TODO | TODO | Cer. Capacitor | TODO |
| TODO | TODO | Resistor | TODO |
VU Meter Components
| Count | Art. No. | Description | Price |
|-------|---------------------|---------------------|-------|
| 1 | Vishay M64{Y,Z}104 | 50K Trim Pot. | 0,95 |
| 1 | LM833 | Generic Op-Amp | 0,88 |
| 2 | 1N4148 | Signal Diode | 0,02 |
| 1 | 1k Metal Film | Resistor | TODO |
| 1 | 3.9k Metal Film | Resistor | TODO |
| 1 | 47 uF | El. Capacitor | TODO |
| 1 | 100k Metal Film | Resistor | TODO |
| 3 | LM339 | Quad-Ch. Comperator | 0,29 |
| 5 | 100 nF | Cer. Capacitor | TODO |
| 1 | 1 uF | El. Capacitor | TODO |
| 5 | Vishay TLHR 5404 | LED red | 0,18 |
| 4 | Vishay TLHY 5404 | LED yellow | 0,14 |
| 3 | Vishay TLHG 5404 | LED green | 0,17 |
| 12 | 390R | Resistor | TODO |
| 1 | 39R | Resistor | TODO |
| 2 | 68R | Resistor | TODO |
| 1 | 100R | Resistor | TODO |
| 1 | 150R | Resistor | TODO |
| 1 | 270R | Resistor | TODO |
| 1 | 390R | Resistor | TODO |
| 1 | 680R | Resistor | TODO |
| 1 | 1K | Resistor | TODO |
| 1 | 1.5K | Resistor | TODO |
| 2 | 2.7K | Resistor | TODO |
| 1 | 3.9K | Resistor | TODO |

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c3lingo-mixer.pdf
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schematics/mixer/c3lingo-interpreter-unit-cache.lib
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@ -360,53 +360,6 @@ X VO+ 8 1600 150 300 L 59 59 1 1 O
ENDDRAW
ENDDEF
#
# JBeyerstedt-Library_INA134PA
#
DEF JBeyerstedt-Library_INA134PA U 0 10 Y Y 1 F N
F0 "U" 800 500 60 H V C CNN
F1 "JBeyerstedt-Library_INA134PA" 800 400 60 H V C CNN
F2 "Package_DIP:DIP-8_W7.62mm" 800 340 60 H I C CNN
F3 "" 0 -200 60 H I C CNN
$FPLIST
P8
$ENDFPLIST
DRAW
S 300 300 1300 -900 0 1 0 N
X REF 1 0 -750 300 R 59 59 1 1 W
X IN- 2 0 -200 300 R 59 59 1 1 I
X IN+ 3 0 -450 300 R 59 59 1 1 I
X V- 4 1600 -750 300 L 59 59 1 1 W
X SENSE 5 1600 -200 300 L 59 59 1 1 I
X OUTPUT 6 1600 -450 300 L 59 59 1 1 O
X V+ 7 1600 150 300 L 59 59 1 1 W
X NC 8 0 150 300 R 59 59 1 1 N
ENDDRAW
ENDDEF
#
# Jumper_Jumper_3_Bridged12
#
DEF Jumper_Jumper_3_Bridged12 JP 0 0 Y N 1 F N
F0 "JP" -100 -100 50 H V C CNN
F1 "Jumper_Jumper_3_Bridged12" 0 110 50 H V C CNN
F2 "" 0 0 50 H I C CNN
F3 "" 0 0 50 H I C CNN
$FPLIST
Jumper*
TestPoint*3Pads*
TestPoint*Bridge*
$ENDFPLIST
DRAW
A -65 -50 89 1282 518 0 1 0 N -120 20 -10 20
C -130 0 20 0 0 0 N
C 0 0 20 0 0 0 N
C 130 0 20 0 0 0 N
P 2 0 1 0 0 -50 0 -20 N
X A 1 -250 0 100 R 50 50 1 1 P
X C 2 0 -150 100 U 50 50 1 1 I
X B 3 250 0 100 L 50 50 1 1 P
ENDDRAW
ENDDEF
#
# Switch_SW_Push
#
DEF Switch_SW_Push SW 0 40 N N 1 F N

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schematics/mixer/c3lingo-interpreter-unit.kicad_pcb
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4
schematics/mixer/c3lingo-interpreter-unit.pro
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@ -1,4 +1,4 @@
update=Thursday, 12 November 2020 at 23:33:32
update=Sunday, 13 December 2020 at 21:49:58
last_client=kicad
[general]
version=1
@ -242,7 +242,7 @@ dPairViaGap=0.25
[schematic_editor]
version=1
PageLayoutDescrFile=
PlotDirectoryName=
PlotDirectoryName=../../
SubpartIdSeparator=0
SubpartFirstId=65
NetFmtName=Pcbnew

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schematics/mixer/c3lingo-interpreter-unit.sch
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37
schematics/vu_meter/vu_meter-cache.lib
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@ -74,26 +74,29 @@ X V+ 3 -100 300 150 D 50 50 5 1 W
ENDDRAW
ENDDEF
#
# Connector_Conn_01x03_Male
# Connector_Conn_01x04_Male
#
DEF Connector_Conn_01x03_Male J 0 40 Y N 1 F N
DEF Connector_Conn_01x04_Male J 0 40 Y N 1 F N
F0 "J" 0 200 50 H V C CNN
F1 "Connector_Conn_01x03_Male" 0 -200 50 H V C CNN
F1 "Connector_Conn_01x04_Male" 0 -300 50 H V C CNN
F2 "" 0 0 50 H I C CNN
F3 "" 0 0 50 H I C CNN
$FPLIST
Connector*:*_1x??_*
$ENDFPLIST
DRAW
S 34 -195 0 -205 1 1 6 F
S 34 -95 0 -105 1 1 6 F
S 34 5 0 -5 1 1 6 F
S 34 105 0 95 1 1 6 F
P 2 1 1 6 50 -200 34 -200 N
P 2 1 1 6 50 -100 34 -100 N
P 2 1 1 6 50 0 34 0 N
P 2 1 1 6 50 100 34 100 N
X Pin_1 1 200 100 150 L 50 50 1 1 P
X Pin_2 2 200 0 150 L 50 50 1 1 P
X Pin_3 3 200 -100 150 L 50 50 1 1 P
X Pin_4 4 200 -200 150 L 50 50 1 1 P
ENDDRAW
ENDDEF
#
@ -217,6 +220,21 @@ X 3 3 0 -150 50 U 50 50 1 1 P
ENDDRAW
ENDDEF
#
# Mechanical_MountingHole
#
DEF Mechanical_MountingHole H 0 40 Y Y 1 F N
F0 "H" 0 200 50 H V C CNN
F1 "Mechanical_MountingHole" 0 125 50 H V C CNN
F2 "" 0 0 50 H I C CNN
F3 "" 0 0 50 H I C CNN
$FPLIST
MountingHole*
$ENDFPLIST
DRAW
C 0 0 50 0 1 50 N
ENDDRAW
ENDDEF
#
# power_+15V
#
DEF power_+15V #PWR 0 0 Y Y 1 F P
@ -232,6 +250,19 @@ X +15V 1 0 0 0 U 50 50 1 1 W N
ENDDRAW
ENDDEF
#
# power_-15V
#
DEF power_-15V #PWR 0 0 Y Y 1 F P
F0 "#PWR" 0 100 50 H I C CNN
F1 "power_-15V" 0 150 50 H V C CNN
F2 "" 0 0 50 H I C CNN
F3 "" 0 0 50 H I C CNN
DRAW
P 6 0 1 0 0 0 0 50 30 50 0 100 -30 50 0 50 F
X -15V 1 0 0 0 U 50 50 0 0 W N
ENDDRAW
ENDDEF
#
# power_GNDREF
#
DEF power_GNDREF #PWR 0 0 Y Y 1 F P

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schematics/vu_meter/vu_meter.kicad_pcb
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22
schematics/vu_meter/vu_meter.pro
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@ -1,4 +1,4 @@
update=Thursday, 12 November 2020 at 23:38:27
update=Sunday, 13 December 2020 at 21:47:42
version=1
last_client=kicad
[general]
@ -12,16 +12,6 @@ NetIExt=net
version=1
LibDir=
[eeschema/libraries]
[schematic_editor]
version=1
PageLayoutDescrFile=
PlotDirectoryName=
SubpartIdSeparator=0
SubpartFirstId=65
NetFmtName=Pcbnew
SpiceAjustPassiveValues=0
LabSize=50
ERC_TestSimilarLabels=1
[pcbnew]
version=1
PageLayoutDescrFile=
@ -259,3 +249,13 @@ uViaDrill=0.1
dPairWidth=0.2
dPairGap=0.25
dPairViaGap=0.25
[schematic_editor]
version=1
PageLayoutDescrFile=
PlotDirectoryName=../../
SubpartIdSeparator=0
SubpartFirstId=65
NetFmtName=Pcbnew
SpiceAjustPassiveValues=0
LabSize=50
ERC_TestSimilarLabels=1

350
schematics/vu_meter/vu_meter.sch
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@ -5,10 +5,10 @@ $Descr A4 8268 11693 portrait
encoding utf-8
Sheet 1 1
Title "VU Meter Module"
Date "2020-11-12"
Rev "v0.1"
Date "2020-12-06"
Rev "v0.2"
Comp "Jannik Beyerstedt"
Comment1 "Experimentation Prototype"
Comment1 "Fixed Prototype"
Comment2 ""
Comment3 ""
Comment4 ""
@ -22,7 +22,7 @@ AR Path="/5FA7BAE6/5FA97E57" Ref="U8" Part="1"
F 0 "U2" H 5600 1667 50 0000 C CNN
F 1 "LM339" H 5600 1576 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 5550 1400 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 1500 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 5650 1500 50 0001 C CNN
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@ -35,7 +35,7 @@ AR Path="/5FA7BAE6/5FA97E5D" Ref="U8" Part="2"
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F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 5550 2050 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 2150 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 5650 2150 50 0001 C CNN
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@ -48,7 +48,7 @@ AR Path="/5FA7BAE6/5FA97E63" Ref="U8" Part="3"
F 0 "U2" H 5600 2967 50 0000 C CNN
F 1 "LM339" H 5600 2876 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 5550 2700 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 2800 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 5650 2800 50 0001 C CNN
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@ -61,7 +61,7 @@ AR Path="/5FA7BAE6/5FA97E69" Ref="U8" Part="4"
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F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 3450 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 5650 3450 50 0001 C CNN
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@ -74,7 +74,7 @@ AR Path="/5FA7BAE6/5FA97E6F" Ref="U8" Part="5"
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F 1 "LM339" H 1158 1855 50 0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 1150 2000 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 1250 2100 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 1250 2100 50 0001 C CNN
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@ -181,7 +181,7 @@ AR Path="/5FA7BAE6/5FC107AB" Ref="U9" Part="1"
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F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 5650 4100 50 0001 C CNN
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@ -194,7 +194,7 @@ AR Path="/5FA7BAE6/5FC107B1" Ref="U9" Part="2"
F 0 "U3" H 5600 4917 50 0000 C CNN
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F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 5550 4650 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 4750 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 5650 4750 50 0001 C CNN
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@ -207,7 +207,7 @@ AR Path="/5FA7BAE6/5FC107B7" Ref="U9" Part="3"
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F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 5400 50 0001 C CNN
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@ -220,7 +220,7 @@ AR Path="/5FA7BAE6/5FC107BD" Ref="U9" Part="4"
F 0 "U3" H 5600 6217 50 0000 C CNN
F 1 "LM339" H 5600 6126 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 5550 5950 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 6050 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 5650 6050 50 0001 C CNN
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@ -327,7 +327,7 @@ AR Path="/5FA7BAE6/5FC17233" Ref="U10" Part="1"
F 0 "U4" H 5600 6867 50 0000 C CNN
F 1 "LM339" H 5600 6776 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 5550 6600 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 6700 50 0001 C CNN
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@ -340,7 +340,7 @@ AR Path="/5FA7BAE6/5FC17239" Ref="U10" Part="2"
F 0 "U4" H 5600 7517 50 0000 C CNN
F 1 "LM339" H 5600 7426 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 5550 7250 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 7350 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 5650 7350 50 0001 C CNN
2 5600 7150
1 0 0 -1
$EndComp
@ -353,7 +353,7 @@ AR Path="/5FA7BAE6/5FC1723F" Ref="U10" Part="3"
F 0 "U4" H 5600 8167 50 0000 C CNN
F 1 "LM339" H 5600 8076 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 5550 7900 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 8000 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 5650 8000 50 0001 C CNN
3 5600 7800
1 0 0 -1
$EndComp
@ -366,7 +366,7 @@ AR Path="/5FA7BAE6/5FC17245" Ref="U10" Part="4"
F 0 "U4" H 5600 8817 50 0000 C CNN
F 1 "LM339" H 5600 8726 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 5550 8550 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 5650 8650 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 5650 8650 50 0001 C CNN
4 5600 8450
1 0 0 -1
$EndComp
@ -479,7 +479,7 @@ L Device:R R1
U 1 1 5FC34754
P 6500 1300
F 0 "R1" V 6293 1300 50 0000 C CNN
F 1 "R" V 6384 1300 50 0000 C CNN
F 1 "390R" V 6384 1300 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 1300 50 0001 C CNN
F 3 "~" H 6500 1300 50 0001 C CNN
1 6500 1300
@ -492,7 +492,8 @@ P 6900 1300
F 0 "D1" H 6893 1517 50 0000 C CNN
F 1 "+12 rd" H 6893 1426 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 1300 50 0001 C CNN
F 3 "~" H 6900 1300 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 1300 50 0001 C CNN
F 4 "TLHR5405" H 6900 1300 50 0001 C CNN "Model"
1 6900 1300
1 0 0 -1
$EndComp
@ -507,7 +508,7 @@ L Device:R R2
U 1 1 5FC543C3
P 6500 1950
F 0 "R2" V 6293 1950 50 0000 C CNN
F 1 "R" V 6384 1950 50 0000 C CNN
F 1 "390R" V 6384 1950 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 1950 50 0001 C CNN
F 3 "~" H 6500 1950 50 0001 C CNN
1 6500 1950
@ -520,7 +521,8 @@ P 6900 1950
F 0 "D2" H 6893 2167 50 0000 C CNN
F 1 "+8 ye" H 6893 2076 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 1950 50 0001 C CNN
F 3 "~" H 6900 1950 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 1950 50 0001 C CNN
F 4 "TLHY5405" H 6900 1950 50 0001 C CNN "Model"
1 6900 1950
1 0 0 -1
$EndComp
@ -537,7 +539,7 @@ L Device:R R3
U 1 1 5FC583CA
P 6500 2600
F 0 "R3" V 6293 2600 50 0000 C CNN
F 1 "R" V 6384 2600 50 0000 C CNN
F 1 "390R" V 6384 2600 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 2600 50 0001 C CNN
F 3 "~" H 6500 2600 50 0001 C CNN
1 6500 2600
@ -550,7 +552,8 @@ P 6900 2600
F 0 "D3" H 6893 2817 50 0000 C CNN
F 1 "+4 ye" H 6893 2726 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 2600 50 0001 C CNN
F 3 "~" H 6900 2600 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 2600 50 0001 C CNN
F 4 "TLHY5405" H 6900 2600 50 0001 C CNN "Model"
1 6900 2600
1 0 0 -1
$EndComp
@ -567,7 +570,7 @@ L Device:R R4
U 1 1 5FC5A209
P 6500 3250
F 0 "R4" V 6293 3250 50 0000 C CNN
F 1 "R" V 6384 3250 50 0000 C CNN
F 1 "390R" V 6384 3250 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 3250 50 0001 C CNN
F 3 "~" H 6500 3250 50 0001 C CNN
1 6500 3250
@ -580,7 +583,8 @@ P 6900 3250
F 0 "D4" H 6893 3467 50 0000 C CNN
F 1 "0 gn" H 6893 3376 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 3250 50 0001 C CNN
F 3 "~" H 6900 3250 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 3250 50 0001 C CNN
F 4 "TLHG5405" H 6900 3250 50 0001 C CNN "Model"
1 6900 3250
1 0 0 -1
$EndComp
@ -597,7 +601,7 @@ L Device:R R5
U 1 1 5FC5C53F
P 6500 3900
F 0 "R5" V 6293 3900 50 0000 C CNN
F 1 "R" V 6384 3900 50 0000 C CNN
F 1 "390R" V 6384 3900 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 3900 50 0001 C CNN
F 3 "~" H 6500 3900 50 0001 C CNN
1 6500 3900
@ -610,7 +614,8 @@ P 6900 3900
F 0 "D5" H 6893 4117 50 0000 C CNN
F 1 "-4 gn" H 6893 4026 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 3900 50 0001 C CNN
F 3 "~" H 6900 3900 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 3900 50 0001 C CNN
F 4 "TLHG5405" H 6900 3900 50 0001 C CNN "Model"
1 6900 3900
1 0 0 -1
$EndComp
@ -627,7 +632,7 @@ L Device:R R6
U 1 1 5FC5EA53
P 6500 4550
F 0 "R6" V 6293 4550 50 0000 C CNN
F 1 "R" V 6384 4550 50 0000 C CNN
F 1 "390R" V 6384 4550 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 4550 50 0001 C CNN
F 3 "~" H 6500 4550 50 0001 C CNN
1 6500 4550
@ -640,7 +645,8 @@ P 6900 4550
F 0 "D6" H 6893 4767 50 0000 C CNN
F 1 "-8 gn" H 6893 4676 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 4550 50 0001 C CNN
F 3 "~" H 6900 4550 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 4550 50 0001 C CNN
F 4 "TLHG5405" H 6900 4550 50 0001 C CNN "Model"
1 6900 4550
1 0 0 -1
$EndComp
@ -657,7 +663,7 @@ L Device:R R7
U 1 1 5FC60D28
P 6500 5200
F 0 "R7" V 6293 5200 50 0000 C CNN
F 1 "R" V 6384 5200 50 0000 C CNN
F 1 "390R" V 6384 5200 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 5200 50 0001 C CNN
F 3 "~" H 6500 5200 50 0001 C CNN
1 6500 5200
@ -670,7 +676,8 @@ P 6900 5200
F 0 "D7" H 6893 5417 50 0000 C CNN
F 1 "-12 ye" H 6893 5326 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 5200 50 0001 C CNN
F 3 "~" H 6900 5200 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 5200 50 0001 C CNN
F 4 "TLHY5405" H 6900 5200 50 0001 C CNN "Model"
1 6900 5200
1 0 0 -1
$EndComp
@ -687,7 +694,7 @@ L Device:R R8
U 1 1 5FC636D5
P 6500 5850
F 0 "R8" V 6293 5850 50 0000 C CNN
F 1 "R" V 6384 5850 50 0000 C CNN
F 1 "390R" V 6384 5850 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 5850 50 0001 C CNN
F 3 "~" H 6500 5850 50 0001 C CNN
1 6500 5850
@ -700,7 +707,8 @@ P 6900 5850
F 0 "D8" H 6893 6067 50 0000 C CNN
F 1 "-16 ye" H 6893 5976 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 5850 50 0001 C CNN
F 3 "~" H 6900 5850 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 5850 50 0001 C CNN
F 4 "TLHY5405" H 6900 5850 50 0001 C CNN "Model"
1 6900 5850
1 0 0 -1
$EndComp
@ -717,7 +725,7 @@ L Device:R R9
U 1 1 5FC66851
P 6500 6500
F 0 "R9" V 6293 6500 50 0000 C CNN
F 1 "R" V 6384 6500 50 0000 C CNN
F 1 "390R" V 6384 6500 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 6500 50 0001 C CNN
F 3 "~" H 6500 6500 50 0001 C CNN
1 6500 6500
@ -730,7 +738,8 @@ P 6900 6500
F 0 "D9" H 6893 6717 50 0000 C CNN
F 1 "-20 rd" H 6893 6626 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 6500 50 0001 C CNN
F 3 "~" H 6900 6500 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 6500 50 0001 C CNN
F 4 "TLHR5405" H 6900 6500 50 0001 C CNN "Model"
1 6900 6500
1 0 0 -1
$EndComp
@ -747,7 +756,7 @@ L Device:R R10
U 1 1 5FC694C3
P 6500 7150
F 0 "R10" V 6293 7150 50 0000 C CNN
F 1 "R" V 6384 7150 50 0000 C CNN
F 1 "390R" V 6384 7150 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 7150 50 0001 C CNN
F 3 "~" H 6500 7150 50 0001 C CNN
1 6500 7150
@ -760,7 +769,8 @@ P 6900 7150
F 0 "D10" H 6893 7367 50 0000 C CNN
F 1 "-24 rd" H 6893 7276 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 7150 50 0001 C CNN
F 3 "~" H 6900 7150 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 7150 50 0001 C CNN
F 4 "TLHR5405" H 6900 7150 50 0001 C CNN "Model"
1 6900 7150
1 0 0 -1
$EndComp
@ -777,7 +787,7 @@ L Device:R R11
U 1 1 5FC6C36E
P 6500 7800
F 0 "R11" V 6293 7800 50 0000 C CNN
F 1 "R" V 6384 7800 50 0000 C CNN
F 1 "390R" V 6384 7800 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 7800 50 0001 C CNN
F 3 "~" H 6500 7800 50 0001 C CNN
1 6500 7800
@ -790,7 +800,8 @@ P 6900 7800
F 0 "D11" H 6893 8017 50 0000 C CNN
F 1 "-28 rd" H 6893 7926 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 7800 50 0001 C CNN
F 3 "~" H 6900 7800 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 7800 50 0001 C CNN
F 4 "TLHR5405" H 6900 7800 50 0001 C CNN "Model"
1 6900 7800
1 0 0 -1
$EndComp
@ -807,7 +818,7 @@ L Device:R R12
U 1 1 5FC6F375
P 6500 8450
F 0 "R12" V 6293 8450 50 0000 C CNN
F 1 "R" V 6384 8450 50 0000 C CNN
F 1 "390R" V 6384 8450 50 0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6430 8450 50 0001 C CNN
F 3 "~" H 6500 8450 50 0001 C CNN
1 6500 8450
@ -820,7 +831,8 @@ P 6900 8450
F 0 "D12" H 6893 8667 50 0000 C CNN
F 1 "-32 rd" H 6893 8576 50 0000 C CNN
F 2 "LED_THT:LED_D5.0mm" H 6900 8450 50 0001 C CNN
F 3 "~" H 6900 8450 50 0001 C CNN
F 3 "https://www.vishay.com/docs/83012/tlhg540.pdf" H 6900 8450 50 0001 C CNN
F 4 "TLHR5405" H 6900 8450 50 0001 C CNN "Model"
1 6900 8450
1 0 0 -1
$EndComp
@ -833,7 +845,7 @@ Wire Wire Line
Wire Wire Line
7150 7800 7150 8450
Text Notes 1650 8750 0 50 ~ 0
Buffer/ Rectifier\nGain: 4
Buffer/ Rectifier\nGain: 3.9
Text Notes 7650 1300 2 50 ~ 0
+12 dBu
Text Notes 7650 1950 2 50 ~ 0
@ -875,7 +887,7 @@ P 1200 3400
F 0 "U3" H 1158 3446 50 0000 L CNN
F 1 "LM339" H 1158 3355 50 0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 1150 3500 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 1250 3600 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 1250 3600 50 0001 C CNN
5 1200 3400
0 -1 -1 0
$EndComp
@ -886,7 +898,7 @@ P 1200 4900
F 0 "U4" H 1158 4946 50 0000 L CNN
F 1 "LM339" H 1158 4855 50 0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 1150 5000 50 0001 C CNN
F 3 "https://www.st.com/resource/en/datasheet/lm139.pdf" H 1250 5100 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm339.pdf" H 1250 5100 50 0001 C CNN
5 1200 4900
0 -1 -1 0
$EndComp
@ -928,7 +940,7 @@ L Device:CP C6
U 1 1 5FD7B3EC
P 4350 9350
F 0 "C6" H 4468 9396 50 0000 L CNN
F 1 "2.2uF" H 4468 9305 50 0000 L CNN
F 1 "47uF" H 4468 9305 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_D10.0mm_P2.50mm_P5.00mm" H 4388 9200 50 0001 C CNN
F 3 "~" H 4350 9350 50 0001 C CNN
1 4350 9350
@ -939,7 +951,7 @@ L Device:R R15
U 1 1 5FD7BF84
P 4850 9350
F 0 "R15" H 4920 9396 50 0000 L CNN
F 1 "10K" H 4920 9305 50 0000 L CNN
F 1 "100K" H 4920 9305 50 0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 4780 9350 50 0001 C CNN
F 3 "~" H 4850 9350 50 0001 C CNN
1 4850 9350
@ -950,7 +962,7 @@ Wire Wire Line
Wire Wire Line
5200 7900 5200 8550
Text Notes 4900 9750 0 50 ~ 0
Signal Smoothing\n(Try out different values)
Signal Smoothing\nTODO: Remove all together!?
Connection ~ 4350 9100
$Comp
L Amplifier_Operational:LM358 U1
@ -961,7 +973,7 @@ AR Path="/5FA7BAE6/5FCB34F7" Ref="U14" Part="3"
F 0 "U1" V 1425 7100 50 0000 C CNN
F 1 "LM833N" V 1516 7100 50 0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket_LongPads" H 1750 7100 50 0001 C CNN
F 3 "" H 1750 7100 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm833.pdf" H 1750 7100 50 0001 C CNN
3 1750 7100
0 1 1 0
$EndComp
@ -973,7 +985,7 @@ AR Path="/5FCB34DD" Ref="C1" Part="1"
AR Path="/5FA7BAE6/5FCB34DD" Ref="C28" Part="1"
F 0 "C1" H 1935 7204 50 0000 R CNN
F 1 "100nF" H 1935 7295 50 0000 R CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 2088 7100 50 0001 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 2088 7100 50 0001 C CNN
F 3 "~" H 2050 7250 50 0001 C CNN
1 2050 7250
-1 0 0 1
@ -1051,8 +1063,9 @@ U 1 1 5FCFBEFC
P 1350 8250
F 0 "RV1" H 1281 8296 50 0000 R CNN
F 1 "50K" H 1281 8205 50 0000 R CNN
F 2 "Potentiometer_THT:Potentiometer_Vishay_148-149_Single_Horizontal" H 1350 8250 50 0001 C CNN
F 3 "~" H 1350 8250 50 0001 C CNN
F 2 "Potentiometer_THT:Potentiometer_Vishay_T73XX_Horizontal" H 1350 8250 50 0001 C CNN
F 3 "https://www.vishay.com/docs/57028/64.pdf" H 1350 8250 50 0001 C CNN
F 4 "Vishay M64{Y,Z}503K" H 1350 8250 50 0001 C CNN "Model"
1 1350 8250
1 0 0 -1
$EndComp
@ -1080,7 +1093,7 @@ AR Path="/5FA7BAE6/5FCB34FE" Ref="U14" Part="1"
F 0 "U1" H 2900 7983 50 0000 C CNN
F 1 "LM833N" H 2900 8074 50 0000 C CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket_LongPads" H 2900 8350 50 0001 C CNN
F 3 "" H 2900 8350 50 0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/lm833.pdf" H 2900 8350 50 0001 C CNN
1 2900 8350
1 0 0 1
$EndComp
@ -1089,7 +1102,7 @@ L Device:CP C5
U 1 1 5FEAE431
P 1750 8250
F 0 "C5" V 2005 8250 50 0000 C CNN
F 1 "10uF" V 1914 8250 50 0000 C CNN
F 1 "1uF" V 1914 8250 50 0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.50mm" H 1788 8100 50 0001 C CNN
F 3 "~" H 1750 8250 50 0001 C CNN
1 1750 8250
@ -1152,52 +1165,23 @@ U 1 1 5FABB7BB
P 900 2250
F 0 "C2" H 1015 2296 50 0000 L CNN
F 1 "100nF" H 1015 2205 50 0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 938 2100 50 0001 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 938 2100 50 0001 C CNN
F 3 "~" H 900 2250 50 0001 C CNN
1 900 2250
1 0 0 -1
$EndComp
$Comp
L Connector:Conn_01x03_Male J1
L Connector:Conn_01x04_Male J1
U 1 1 5FABC0AB
P 800 1000
F 0 "J1" H 908 1281 50 0000 C CNN
F 1 "Pwr_Signal" H 908 1190 50 0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical" H 800 1000 50 0001 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" H 800 1000 50 0001 C CNN
F 3 "~" H 800 1000 50 0001 C CNN
F 4 "TODO: Actual Connector" H 800 1000 50 0001 C CNN "Model"
1 800 1000
1 0 0 -1
1 0 0 1
$EndComp
$Comp
L power:GNDREF #PWR013
U 1 1 5FABEB24
P 1500 1200
F 0 "#PWR013" H 1500 950 50 0001 C CNN
F 1 "GNDREF" H 1505 1027 50 0000 C CNN
F 2 "" H 1500 1200 50 0001 C CNN
F 3 "" H 1500 1200 50 0001 C CNN
1 1500 1200
1 0 0 -1
$EndComp
$Comp
L power:+15V #PWR012
U 1 1 5FABF9E5
P 1500 800
F 0 "#PWR012" H 1500 650 50 0001 C CNN
F 1 "+15V" H 1515 973 50 0000 C CNN
F 2 "" H 1500 800 50 0001 C CNN
F 3 "" H 1500 800 50 0001 C CNN
1 1500 800
1 0 0 -1
$EndComp
Wire Wire Line
1000 900 1250 900
Wire Wire Line
1500 900 1500 800
Wire Wire Line
1000 1100 1250 1100
Wire Wire Line
1500 1100 1500 1200
Text GLabel 1000 8000 0 50 Input ~ 0
Line_Input
$Comp
@ -1271,7 +1255,7 @@ U 1 1 5FBCBB9A
P 900 3750
F 0 "C3" H 1015 3796 50 0000 L CNN
F 1 "100nF" H 1015 3705 50 0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 938 3600 50 0001 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 938 3600 50 0001 C CNN
F 3 "~" H 900 3750 50 0001 C CNN
1 900 3750
1 0 0 -1
@ -1342,17 +1326,13 @@ Wire Wire Line
Wire Wire Line
5000 1100 5000 1200
Connection ~ 5000 1200
Text GLabel 1600 1000 2 50 Output ~ 0
Line_Input
Wire Wire Line
1000 1000 1600 1000
$Comp
L Device:C C4
U 1 1 5FC56400
P 900 5250
F 0 "C4" H 1015 5296 50 0000 L CNN
F 1 "100nF" H 1015 5205 50 0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 938 5100 50 0001 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 938 5100 50 0001 C CNN
F 3 "~" H 900 5250 50 0001 C CNN
1 900 5250
1 0 0 -1
@ -1426,43 +1406,181 @@ F 3 "" H 2050 7500 50 0001 C CNN
1 2050 7500
1 0 0 -1
$EndComp
Wire Wire Line
1450 7000 1450 7500
Wire Wire Line
2050 7000 2050 7100
Wire Wire Line
2050 7400 2050 7500
Text Notes 3500 3350 0 50 ~ 0
For Input Gain of 3.9:\n2700 Ω: 11,99 dBu\n3900 Ω: 8,12 dBu\n2700 Ω: 3,86 dBu\n1500 Ω: 0,1 dBu\n1000 Ω: -3,8 dBu\n680 Ω: -8,03 dBu\n390 Ω: -11,89 dBu\n270 Ω: -16,17 dBu\n150 Ω: -19,95 dBu\n100 Ω: -23,87 dBu\n68 Ω: -28,15 dBu\n39 Ω: -32,08 dBu\n68 Ω to ground\n\n1.11 mA @ 15V\n(13.565 kΩ)
$Comp
L power:PWR_FLAG #FLG0101
U 1 1 5FECA14D
P 1250 900
F 0 "#FLG0101" H 1250 975 50 0001 C CNN
F 1 "PWR_FLAG" H 1250 1073 50 0000 C CNN
F 2 "" H 1250 900 50 0001 C CNN
F 3 "~" H 1250 900 50 0001 C CNN
1 1250 900
1 0 0 -1
$EndComp
Connection ~ 1250 900
Wire Wire Line
1250 900 1500 900
Wire Wire Line
2050 6900 2050 7000
Connection ~ 2050 7000
$Comp
L Mechanical:MountingHole H1
U 1 1 5FB7453C
P 850 10300
F 0 "H1" H 950 10346 50 0000 L CNN
F 1 "MountingHole" H 950 10255 50 0000 L CNN
F 2 "MountingHole:MountingHole_3.2mm_M3_ISO14580" H 850 10300 50 0001 C CNN
F 3 "~" H 850 10300 50 0001 C CNN
1 850 10300
1 0 0 -1
$EndComp
$Comp
L Mechanical:MountingHole H3
U 1 1 5FB8138C
P 850 10550
F 0 "H3" H 950 10596 50 0000 L CNN
F 1 "MountingHole" H 950 10505 50 0000 L CNN
F 2 "MountingHole:MountingHole_3.2mm_M3_ISO14580" H 850 10550 50 0001 C CNN
F 3 "~" H 850 10550 50 0001 C CNN
1 850 10550
1 0 0 -1
$EndComp
$Comp
L Mechanical:MountingHole H2
U 1 1 5FB81634
P 1750 10300
F 0 "H2" H 1850 10346 50 0000 L CNN
F 1 "MountingHole" H 1850 10255 50 0000 L CNN
F 2 "MountingHole:MountingHole_3.2mm_M3_ISO14580" H 1750 10300 50 0001 C CNN
F 3 "~" H 1750 10300 50 0001 C CNN
1 1750 10300
1 0 0 -1
$EndComp
$Comp
L Mechanical:MountingHole H4
U 1 1 5FB8197A
P 1750 10550
F 0 "H4" H 1850 10596 50 0000 L CNN
F 1 "MountingHole" H 1850 10505 50 0000 L CNN
F 2 "MountingHole:MountingHole_3.2mm_M3_ISO14580" H 1750 10550 50 0001 C CNN
F 3 "~" H 1750 10550 50 0001 C CNN
1 1750 10550
1 0 0 -1
$EndComp
$Comp
L power:-15V #PWR020
U 1 1 5FD1ED25
P 1450 6900
F 0 "#PWR020" H 1450 7000 50 0001 C CNN
F 1 "-15V" H 1465 7073 50 0000 C CNN
F 2 "" H 1450 6900 50 0001 C CNN
F 3 "" H 1450 6900 50 0001 C CNN
1 1450 6900
1 0 0 -1
$EndComp
$Comp
L Device:C C7
U 1 1 5FD2083C
P 1450 7250
AR Path="/5FD2083C" Ref="C7" Part="1"
AR Path="/5FA7BAE6/5FD2083C" Ref="C?" Part="1"
F 0 "C7" H 1335 7204 50 0000 R CNN
F 1 "100nF" H 1335 7295 50 0000 R CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm" H 1488 7100 50 0001 C CNN
F 3 "~" H 1450 7250 50 0001 C CNN
1 1450 7250
-1 0 0 1
$EndComp
Wire Wire Line
1450 6900 1450 7000
Wire Wire Line
1450 7000 1450 7100
Connection ~ 1450 7000
Wire Wire Line
1450 7400 1450 7500
Text Notes 6050 900 0 50 ~ 0
TODO: Better use 5V?\nrd: 2.3 V (390R @15V)\ngn: 2.4 V (390R @15V)\nye: 2.6 V (390R @15V)
$Comp
L power:GNDREF #PWR013
U 1 1 5FABEB24
P 1600 1200
F 0 "#PWR013" H 1600 950 50 0001 C CNN
F 1 "GNDREF" H 1605 1027 50 0000 C CNN
F 2 "" H 1600 1200 50 0001 C CNN
F 3 "" H 1600 1200 50 0001 C CNN
1 1600 1200
1 0 0 -1
$EndComp
Wire Wire Line
1600 1100 1600 1200
$Comp
L power:PWR_FLAG #FLG0102
U 1 1 5FEDB40E
P 1250 1100
F 0 "#FLG0102" H 1250 1175 50 0001 C CNN
F 1 "PWR_FLAG" H 1250 1273 50 0000 C CNN
F 2 "" H 1250 1100 50 0001 C CNN
F 3 "~" H 1250 1100 50 0001 C CNN
1 1250 1100
P 1350 1100
F 0 "#FLG0102" H 1350 1175 50 0001 C CNN
F 1 "PWR_FLAG" H 1350 1273 50 0000 C CNN
F 2 "" H 1350 1100 50 0001 C CNN
F 3 "~" H 1350 1100 50 0001 C CNN
1 1350 1100
1 0 0 1
$EndComp
Connection ~ 1250 1100
Connection ~ 1350 1100
Wire Wire Line
1250 1100 1500 1100
1350 1100 1600 1100
Wire Wire Line
1950 900 2200 900
Connection ~ 1950 900
$Comp
L power:PWR_FLAG #FLG0101
U 1 1 5FECA14D
P 1950 900
F 0 "#FLG0101" H 1950 975 50 0001 C CNN
F 1 "PWR_FLAG" H 1950 1073 50 0000 C CNN
F 2 "" H 1950 900 50 0001 C CNN
F 3 "~" H 1950 900 50 0001 C CNN
1 1950 900
1 0 0 -1
$EndComp
Wire Wire Line
2200 900 2200 800
$Comp
L power:+15V #PWR012
U 1 1 5FABF9E5
P 2200 800
F 0 "#PWR012" H 2200 650 50 0001 C CNN
F 1 "+15V" H 2215 973 50 0000 C CNN
F 2 "" H 2200 800 50 0001 C CNN
F 3 "" H 2200 800 50 0001 C CNN
1 2200 800
1 0 0 -1
$EndComp
$Comp
L power:PWR_FLAG #FLG01
U 1 1 5FCE914A
P 1950 1000
F 0 "#FLG01" H 1950 1075 50 0001 C CNN
F 1 "PWR_FLAG" H 1950 1173 50 0000 C CNN
F 2 "" H 1950 1000 50 0001 C CNN
F 3 "~" H 1950 1000 50 0001 C CNN
1 1950 1000
1 0 0 1
$EndComp
$Comp
L power:-15V #PWR019
U 1 1 5FCF2E71
P 2200 1150
F 0 "#PWR019" H 2200 1250 50 0001 C CNN
F 1 "-15V" H 2215 1323 50 0000 C CNN
F 2 "" H 2200 1150 50 0001 C CNN
F 3 "" H 2200 1150 50 0001 C CNN
1 2200 1150
-1 0 0 1
$EndComp
Wire Wire Line
2200 1150 2200 1000
Wire Wire Line
2200 1000 1950 1000
Connection ~ 1950 1000
Text GLabel 1200 800 2 50 Output ~ 0
Line_Input
Wire Wire Line
1000 800 1200 800
Wire Wire Line
1000 1100 1350 1100
Wire Wire Line
1000 1000 1950 1000
Wire Wire Line
1000 900 1950 900
$EndSCHEMATC

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vu_meter.pdf
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