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BackLit for each an every expected parameter (see bellow) "); echo(" s_smooth - [ 2 ] ,, Knurl's Surface Smoothing : File donwn the top surface of the indenting spheres, measured from the front Don't put R8 so close to R26 -- D36/R47 too close From 53c90c58d81dff355f8b17948a9b73c895233eb2 Mon Sep 17 00:00:00 2001 Subject: [PATCH] Change op amp, dims to user drawings Hardware/PCB/precadsr/potsetc.sch | 4 | 1M | Resistor | | | | | | Tayda | A-1847 | | S1 | 1 | SW_3PDT_x3 | 3PDT miniature toggle switch ON-ON | | | | | | | Tayda | A-826 | | | Tayda | A-1955 | | | | J9 | 1 | B10k | **Potentiometer, 16 mm vertical board mount module ACDC-Converter, 3W, HiLink, HLK-PMxx, THT, http://www.hlktech.net/product_detail.php?ProId=54 ACDC-Converter 3W THT HiLink board mount OR: | | | J10 | 1 | B20k | Potentiometer | | | | | | | | | | S3 | 1 | 3_pin_Molex_connector | 3 | AudioJack2 | Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling) | | | J1 | 1 | Conn_01x07 | \*(optional) SIP socket, 2.54 mm, 1x7 Pin socket, 2.54 mm, 1x2 (see [build notes](build.md)) | | | C13 | 3 | 10uF | Polarized capacitor | | U3 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | | | Tayda | A-826 | | | | Tayda | A-1157 or A-2425 | | S3 | 1 Fireball/Fireball.kicad_pcb | 2 Smaller cap (476nF?) for C1 Ceramic 104s for C10, C14, might be fine, might introduce intermittents - Don't put R8 so close to R26 D36/R47 too close Testing before powering up: Clock In - U1-13 (can get at from top when assembled - Stop Switch - 10 ohms between U1-14 and U2-1 when off, more like 1M ohms when off Single Step - 12V through 10k Ohms to U-1-14, more like 1M when off - Glide attenuator (B10k) (join two left pins from below - Glide, manual (A100k) (two left pins, from below) - Clock In - ~27K to U3-8? No, transistors maybe activate? - Clock Out - 1K to U2-14 - Casc Out normal to TP10, optional) - Casc out 2x Toggle Switches, 2pin: - reset Pots, 3-pin: - Glide attenuator (B10k) (join two left pins from below - Glide, manual (A100k) (two left pins, from below Pots, 2-pin: - Glide, manual (A100k) (two left pins, from below Pots, 2-pin: - Glide, manual (A100k) (two.
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