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Back(end 164.22 117.97 (hatch edge 0.5 "name": "Grouped By Value", (offset 0.762) hide (end 1.016 2.54 (end -1.016 -2.54 (offset 0) hide From 713014315986726ad96f361cfbc8e67551a6a879 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Added input resistor for sync; placed everything on PCB sandwich, making some final-ish decisions about connecting to front panel 24ca7abc85681936397a2802c8155420fcaf679c updated C14 footprint, traces, groundplane 2cbdb94ba9 updated C5 footprint & tracing; schematic annotation updates the potentiometer pads and trace routing to de-bodge the pots. 's notes on updating the fireball for rev 2 beta edits README.md file adds README.md file again README.md | 4 .../PCB/precadsr_Gerbers/precadsr-PTH.drl | 4 | 100 nF | Unpolarized capacitor | | J3 | 1 | SW_SPDT | Switch, single pole double throw | | | | R4, R6, R7, R30, R31 Switch, dual pole double throw, separate symbols | | R8, R10, R12 | 3 | 2N3904 | Small Signal NPN Transistor, TO-92 R16, R17, R19, R20 | 4 | 100k | Resistor | | | R4, R12, R13 | 3 | 1nF | Film capacitor | | | | C7, C12 | 3 | A1M | Potentiometer | | | R8, R10, R12 | 3 | 100R | Resistor | | | | U1 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 Low-Power, Dual Operational Amplifiers, DIP-14/SOIC-14 | | | | | Tayda | A-1157 or A-2425 | | | | | | | | S1 | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8"/>