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Replace input filter with 1206, adjust Rs

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This commit is contained in:
Gregor Riepl 2024-04-13 14:47:17 +02:00
parent 3276d0ffcc
commit 74e9f1f605
2 changed files with 257 additions and 228 deletions
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473
petsound.kicad_pcb
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@ -145,7 +145,7 @@
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@ -285,7 +285,7 @@
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@ -554,10 +554,10 @@
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12
petsound.kicad_sch
View file

@ -1811,7 +1811,7 @@
(uuid ff4c7c1d-6ac6-4e2b-80f1-ed7290eceb44)
)
(text_box "This sound adapter PCB should sit between the MOS6522 (VIA) IC and the PET mainboard.\n\nInstructions:\nSolder a DIP40 socket into J1 and two rows of pin headers into J2.\nMake sure to use thin pin headers, or you will ruin the DIP40 socket.\nRemove the 6522 from the PET (socket C5) and insert it into J1.\nPlug the adapter PCB into C5 on the PET mainboard.\nConnect a small speaker to J3 (+) and J4 (-) and glue it on top of the 5 holes.\n\nImportant:\nPin 1 is at the southeast position when looking at the PET from the front.\n"
(text_box "This sound adapter PCB should sit between the MOS6522 (VIA) IC and the PET mainboard.\n\nInstructions:\nSolder a DIP40 socket into J1 and two rows of pin headers into J2.\nMake sure to use thin pin headers, or you will ruin the DIP40 socket on the mainboard.\nRemove the 6522 from the PET (socket C5) and insert it into J1.\nPlug the adapter PCB into C5 on the PET mainboard.\nConnect a small speaker to J3 (+) and J4 (-) and glue it on top of the 5 holes.\n\nImportant:\nPin 1 is at the southeast position when looking at the PET from the front.\n"
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(stroke (width 0) (type default))
(fill (type none))
@ -2283,7 +2283,7 @@
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(effects (font (size 1.27 1.27)))
)
(property "Value" "MOS6522 BTM" (at 133.35 156.6601 0)
(property "Value" "MOS6522 BOTTOM" (at 133.35 156.6601 0)
(effects (font (size 1.27 1.27)))
)
(property "Footprint" "Package_DIP:DIP-40_W15.24mm_LongPads" (at 134.62 130.81 0)
@ -2347,10 +2347,10 @@
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(effects (font (size 1.27 1.27)))
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(property "Value" "39n" (at 167.64 79.9409 90)
(property "Value" "330n/C0G" (at 167.64 79.9409 90)
(effects (font (size 1.27 1.27)))
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(property "Footprint" "Capacitor_SMD:C_0805_2012Metric" (at 171.45 82.8548 0)
(property "Footprint" "Capacitor_SMD:C_1206_3216Metric" (at 171.45 82.8548 0)
(effects (font (size 1.27 1.27)) hide)
)
(property "Datasheet" "~" (at 167.64 83.82 0)
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(property "Reference" "R5" (at 185.42 102.7897 90)
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(property "Value" "12k" (at 185.42 105.2139 90)
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)
(property "Footprint" "Resistor_SMD:R_0805_2012Metric" (at 185.42 109.728 90)
@ -2611,7 +2611,7 @@
(property "Reference" "R4" (at 175.26 78.6597 90)
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(property "Value" "33k" (at 175.26 81.0839 90)
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)
(property "Footprint" "Resistor_SMD:R_0805_2012Metric" (at 175.26 85.598 90)