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Features and Fixes for Prototype 3 #13

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Features and Fixes for Prototype 3 #13

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86c5a95
WIP Channel Mixer: Reduce mic and output gain
jbeyerstedt Dec 18, 2024
0421527
Channel Mixer: Re-design VU meter scale
jbeyerstedt Dec 18, 2024
a05962f
Line I/O: Remove gain adjustment (PCB not updated!)
jbeyerstedt Dec 18, 2024
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6 changes: 3 additions & 3 deletions schematics/c3lingo_unit-assembly/c3lingo_unit-assembly.kicad_sch
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -6,10 +6,10 @@
(paper "A4")
(title_block
(title "c3lingo interpeter unit")
(date "2024-11-16")
(rev "v0.3.4")
(date "2024-12-18")
(rev "v0.4.0-dev")
(company "Jannik Beyerstedt (jtbx)")
(comment 1 "Prototype 2 + Rework")
(comment 1 "Prototype 3")
)
(lib_symbols
(symbol "power:+15V"
Expand Down
27 changes: 8 additions & 19 deletions schematics/c3lingo_unit-assembly/c3lingo_unit-channel_io/c3lingo_unit-channel_io.kicad_sch
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,10 +6,10 @@
(paper "A4")
(title_block
(title "c3lingo interpeter unit -- channel I/O")
(date "2024-11-16")
(rev "v0.3.4")
(date "2024-12-18")
(rev "v0.4.0-dev")
(company "Jannik Beyerstedt (jtbx)")
(comment 1 "Prototype 2 + Rework")
(comment 1 "Prototype 3")
)
(lib_symbols
(symbol "Amplifier_Operational:NE5534"
Expand Down Expand Up @@ -5026,7 +5026,7 @@
)
(uuid "ff4474e5-e6df-4454-a050-d2c8da3e9344")
)
(text "Mic Preamp\nGain: 35 dB\nLP-Filter: 10 kHz"
(text "Mic Preamp\nGain: 30 dB\nLP-Filter: 10 kHz"
(exclude_from_sim no)
(at 71.12 107.442 0)
(effects
Expand All @@ -5039,17 +5039,6 @@
)
(uuid "0283aacb-a6d1-48d6-8176-2092ca9d3c2d")
)
(text "PCB v0.3.3 Errata:\nAdd 220pF on parallel to R602"
(exclude_from_sim no)
(at 177.038 160.02 0)
(effects
(font
(size 1.27 1.27)
)
(justify left)
)
(uuid "3093f7a4-c29f-4ab8-ae0c-d368da4b6ee5")
)
(text "Headphone driver\nGain: 3.9"
(exclude_from_sim no)
(at 184.15 111.76 0)
Expand Down Expand Up @@ -5691,7 +5680,7 @@
)
)
)
(property "Value" "68K 1%"
(property "Value" "39K 1%"
(at 106.68 85.9536 90)
(effects
(font
Expand Down Expand Up @@ -5735,7 +5724,7 @@
(hide yes)
)
)
(property "LCSC Part #" "C17801"
(property "LCSC Part #" "TODO"
(at 106.68 88.9 0)
(effects
(font
Expand Down Expand Up @@ -6150,7 +6139,7 @@
)
)
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(property "Value" "68K 1%"
(property "Value" "39K 1%"
(at 106.68 68.6604 90)
(effects
(font
Expand Down Expand Up @@ -6194,7 +6183,7 @@
(hide yes)
)
)
(property "LCSC Part #" "C17801"
(property "LCSC Part #" "TODO"
(at 106.68 63.5 0)
(effects
(font
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