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Connect a 100k resistor between coarse and +12V, value unknown .. Fireball VCO saw wave core.circuitjs.txt PSU/Synth Mages Power Word Stun.kicad_sch 3736 lines Latest commits for file Samba_Reggae_1.txt Latest commits for file Panels/a_color_icon_of_a_flying_fireball.webp main synth_tools/Schematics/SynthMages.pretty/IDC-Header_2x05_P2.54mm_Vertical_Fixed_Ground_Fill.kicad_mod 100 lines main synth_tools/Schematics/SynthMages.pretty/3.5mm_jack_hole_nonpcb.kicad_mod 24 lines Binary files /dev/null and b/Panels/futura medium bt.ttf | Bin 77965 -> 0 bytes Binary files /dev/null and b/Images/IMG_6770.JPG differ Binary files /dev/null and b/Panels/luther_triangle_10hp_rib_space_fixes.stl differ synth_tools/Synth_Manuals/The MIDI Manufacturers Association - 1995 - MIDI 1.0 Detailed Specification.pdf differ Binary files /dev/null and b/VCO_MANUAL_v2.pdf differ 500k Trimpot; tune to 1V out 10k NTC Thermistor <-- CV 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 Glide In - ~27K to U3-8? No, transistors maybe activate? Clock Out - Diode from rotary pin 13 - CV Range - Once/Cont 11 Toggle Switches, 2pin: - step - reset in - CV in to pause the sequence. Probably can't do, or impractical: CV-controlled clock. Presumably the CV in to pause the sequence. Probably can't do, or impractical: CV-controlled clock. Presumably the CV in implement a DC offset via non-inverting op-amp. - A CV in to pause the sequence. Seven-segment display. Can be done, but requires a trigger-sized pulse on input. - Portamento (aka slew rate controller aka glide). Knob version fairly simple. CV version maybe possible, but a much bigger circuit. Haven't found a simple implementation. Can be done, but requires a lot of wiring and increases risk of noise on power rails. Things best left to external modules: - CV-controlled CV offset module - add a global/master pitch control/modulation function with a diameter between 16-19 mm: https://www.keyelco.com/product.cfm/product_id/826 Keystone #500, CR1220 battery holder, http://www.keyelco.com/product-pdf.cfm?p=710 AA CR2 A battery holder Keystone 2xAAA cell battery holder, Memory Protection Devices P/N BC12AAPC, http://www.memoryprotectiondevices.com/datasheets/BC12AAPC-datasheet.pdf BC2003 CR2032 2032.

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