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4 commits

Author SHA1 Message Date
Jannik Beyerstedt 38a8ab0895 Schematics: Fix multiple issues with initial prototype
- Removed high-pass filter between microphone pre-amp and gain as it made things sound worse
- Removed low-pass filter before VU meter as it looked fine without
- Connect VU meter to +15 V directly as 5 V didn't work
- Footprint of the gain potentiometer (Alps RK09) seems to be fixed with the KiCad 6 library
2022-12-31 00:26:04 +01:00
Jannik Beyerstedt 65fc825250 [FIX] Schematics: Revised values and PCB errata text
* fixed trim pot range at VU meter
* TODOs removed (5V V_LED didn't work out, 10uF at LM386 wasn't better, VU meter filtering not needed)
* phantom power voltage changed and readme chapter added
* hardware errata: gain pot. pins are swapped, ground plane isn't fully connected

Footprints and PCB aren't fixed to keep the schematic compatible with the existing PCBs!
2021-09-05 20:08:08 +02:00
Jannik Beyerstedt 38b97f0546 PCB: Channel strip design 2021-06-02 21:31:30 +02:00
Jannik Beyerstedt 5edee823cb Schematics: Add missing functionality, add footprints, fix todos
- Add On-Air button
- Lower frequency for the input HPF
- (final) button footprints
- (final) potentiometer values and footprints
2021-05-30 22:42:17 +02:00