23.27
Control unit and the stored program
the orders are kept in the same store as the numbers, and the machine fetches and obeys them one by one
AWhat it needs
Needs 362 other products in all, 4 of them directly.
View
- 23.27 Control unit and the stored programMaking Year 92 needs 362 products
- 23.16 Clock pulse generatorMaking Year 86 needs 300 products
- 21.18 Quartz crystal oscillator and quartz clockKnowledge Year 68 needs 291 products
- 12.18 Precision grinding machineMaking Year 32 needs 182 products
- 12.05 Screw-cutting lathe with change gearsMaking Year 31 needs 157 products
- 10.13 Cast iron gears, shafts and machine framesMaking Year 22 needs 144 products
- 09.04 Wooden gearsMaking Year 15 needs 84 products
- 07.03 Layout toolsKnowledge Year 4 needs 75 products
- 06.07 Iron hammers, tongs and anvilMaking Year 3 needs 60 products
- 06.05 Wrought iron barMaking Year 3 needs 57 products
- 05.12 Bronze hammers and anvil blockMaking Year 2 needs 47 products
- 05.09 BronzeMaking Year 2 needs 45 products
- 04.24 CruciblesMaking Year 2 needs 24 products
- 04.09 Updraft kilnMaking Year 1 needs 21 products
- 04.02 Clay pit and prepared clayMaking Year 1 needs 16 products
- 02.17 BasketsMaking Year 1 needs 4 products
- 02.03 Stone knives, scrapers and engraving pointsMaking Year 1 needs 3 products
- 02.01 Knapping kitMaking Year 1 needs 2 products
- 01.02 HammerstoneMaking Year 1 raw materials only
- 01.03 Sharp stone flakeMaking Year 1 needs 1 product
- 02.25 Antler pick, bone shovel and stone hoeMaking Year 1 needs 14 products
- 02.06 Sinew thread and rawhide lashingMaking Year 1 needs 9 products
- 01.15 Fire-hardened spear ⚠Making Year 1 needs 6 products
- 01.03 Sharp stone flakeshown above ↑← shown at left
- 01.08 First fire and stone hearthMaking Year 1 needs 5 products
- 01.06 Tinder and kindling storeMaking Year 1 raw materials only
- 01.07 Bow-drill fire setMaking Year 1 needs 3 products
- 01.03 Sharp stone flakeshown above ↑← shown at left
- 01.05 Twisted plant-fibre cordMaking Year 1 needs 2 products
- 02.03 Stone knives, scrapers and engraving pointsshown above ↑← shown at left
- 02.08 Hafted stone axe ⚠Making Year 1 needs 13 products
- 02.05 Pitch glueMaking Year 1 needs 6 products
- 02.06 Sinew thread and rawhide lashingshown above ↑← shown at left
- 02.07 Ground stone axe headMaking Year 1 needs 2 products
- 01.02 Hammerstoneshown above ↑← shown at left
- 02.04 Sandstone grinding slabMaking Year 1 needs 1 product
- 04.04 Pit-fired potteryMaking Year 1 needs 18 products
- 01.08 First fire and stone hearthshown above ↑← shown at left
- 04.03 Hand-built potsMaking Year 1 needs 17 products
- 04.08 Sun-dried mud bricksMaking Year 1 needs 18 products
- 02.10 Wooden wedges and maulMaking Year 1 needs 14 products
- 04.02 Clay pit and prepared clayshown above ↑← shown at left
- 04.22 Refractory clay mixMaking Year 2 needs 23 products
- 05.05 Smelted copperMaking Year 2 needs 42 products
- 04.24 Cruciblesshown above ↑← shown at left
- 04.27 Forced-air charcoal furnaceMaking Year 2 needs 31 products
- 04.07 Charcoal clampMaking Year 1 needs 16 products
- 04.25 Clay air nozzles (tuyeres)Making Year 2 needs 24 products
- 04.26 Bag bellowsMaking Year 2 needs 14 products
- 02.15 Scraped, brain-tanned and smoked hidesCloth Year 1 needs 8 products
- 02.16 Sewn hide clothing, shoes, bags and water skinsCloth Year 1 needs 13 products
- 05.04 Ore dressing floorMaking Year 2 needs 24 products
- 01.02 Hammerstoneshown above ↑← shown at left
- 02.24 Carved wooden bowls and troughsMaking Year 1 needs 14 products
- 05.03 Fire-set open-cut mine ⚠Making Year 2 needs 22 products
- 01.08 First fire and stone hearthshown above ↑← shown at left
- 02.12 Lever, log rollers and sledgeMaking Year 1 needs 15 products
- 02.08 Hafted stone axeshown above ↑← shown at left
- 02.11 Three-strand ropeMaking Year 1 needs 3 products
- 02.25 Antler pick, bone shovel and stone hoeshown above ↑← shown at left
- 05.01 Ore sample collection and simple testsMaking Year 2 needs 20 products
- 02.25 Antler pick, bone shovel and stone hoeshown above ↑← shown at left
- 02.28 Resource map of the islandKnowledge Year 1 needs 18 products
- 02.15 Scraped, brain-tanned and smoked hidesshown above ↑← shown at left
- 02.26 Dugout canoe and paddles ⚠Making Year 1 needs 16 products
- 05.07 Beam balance and weightsMaking Year 2 needs 23 products
- 05.08 Smelted tinMaking Year 2 needs 41 products
- 05.10 Two-piece moulds with clay coresMaking Year 2 needs 24 products
- 05.13 Bronze tongs and crucible liftersMaking Year 2 needs 48 products
- 06.04 Iron bloomMaking Year 3 needs 55 products
- 04.07 Charcoal clampshown above ↑← shown at left
- 06.02 Mined and roasted iron oreMaking Year 3 needs 48 products
- 06.03 Bloomery furnaceMaking Year 3 needs 52 products
- 04.22 Refractory clay mixshown above ↑← shown at left
- 04.25 Clay air nozzles (tuyeres)shown above ↑← shown at left
- 06.01 Double board bellows with flap valvesMaking Year 3 needs 51 products
- 02.15 Scraped, brain-tanned and smoked hidesshown above ↑← shown at left
- 05.15 Bronze sawMaking Year 3 needs 49 products
- 05.21 Bronze needles, pins, hooks, nails and rivetsMaking Year 3 needs 49 products
- 06.06 Smith's forgeMaking Year 3 needs 53 products
- 06.13 Steel-edged axes, adzes and chiselsMaking Year 4 needs 71 products
- 06.08 Forge weldingMaking Year 3 needs 61 products
- 06.11 Shear steelMaking Year 4 needs 63 products
- 06.12 Hardening and temperingMaking Year 4 needs 70 products
- 03.10 Rendered tallow and lardMaking Year 1 needs 21 products
- 01.14 Hot-stone boiling pitHome Year 1 needs 9 products
- 01.04 Digging stickMaking Year 1 needs 2 products
- 01.08 First fire and stone hearthshown above ↑← shown at left
- 01.12 Bamboo cups and water tubesMaking Year 1 needs 2 products
- 01.13 Split-stick tongsMaking Year 1 needs 3 products
- 02.21 Bow and arrows ⚠Food Year 1 needs 14 products
- 02.24 Carved wooden bowls and troughsshown above ↑← shown at left
- 06.06 Smith's forgeshown above ↑← shown at left
- 06.11 Shear steelshown above ↑← shown at left
- 07.01 Standard measure of lengthKnowledge Year 4 needs 73 products
- 05.09 Bronzeshown above ↑← shown at left
- 06.14 Files and raspsMaking Year 4 needs 72 products
- 07.17 Framed joineryMaking Year 6 needs 82 products
- 06.16 Augers, drill bits and braceMaking Year 4 needs 73 products
- 07.03 Layout toolsshown above ↑← shown at left
- 07.14 Timber seasoning stacksMaking Year 5 needs 75 products
- 07.13 Saw pit and sawn planksMaking Year 5 needs 74 products
- 07.15 Carpenter's bench, planes, drawknife, spokeshave and malletsMaking Year 5 needs 76 products
- 07.16 Hide glueMaking Year 5 needs 24 products
- 07.18 Pole latheMaking Year 6 needs 83 products
- 10.12 Iron castingsMaking Year 22 needs 143 products
- 10.10 Sand moulding with wooden patternsMaking Year 22 needs 84 products
- 10.11 Cupola remelting furnaceMaking Year 22 needs 141 products
- 10.02 FirebrickMaking Year 20 needs 24 products
- 10.07 Water-powered piston blowerMaking Year 21 needs 106 products
- 07.21 Barrels, buckets and tubsMaking Year 6 needs 78 products
- 09.06 Overshot water wheelMaking Year 15 needs 101 products
- 09.01 Weir, mill pond and millrace with sluice gateMaking Year 14 needs 98 products
- 04.15 Slaked lime, mortar, plaster and whitewash ⚠Making Year 1 needs 27 products
- 06.22 Picks, shovels, hoes, crowbars and sledgehammersMaking Year 4 needs 72 products
- 07.11 Surveying kitKnowledge Year 5 needs 82 products
- 06.19 Chain and hooksMaking Year 4 needs 62 products
- 07.01 Standard measure of lengthshown above ↑← shown at left
- 07.03 Layout toolsshown above ↑← shown at left
- 07.09 Lodestone and magnetic compassKnowledge Year 5 needs 76 products
- 06.26 Steel needles, awls and fish hooksMaking Year 5 needs 75 products
- 06.12 Hardening and temperingshown above ↑← shown at left
- 06.20 Draw plate and drawn wireMaking Year 4 needs 73 products
- 07.17 Framed joineryshown above ↑← shown at left
- 07.31 Stone quarry and dressed blocksMaking Year 7 needs 88 products
- 09.03 Undershot water wheelMaking Year 15 needs 100 products
- 07.17 Framed joineryshown above ↑← shown at left
- 09.01 Weir, mill pond and millrace with sluice gateshown above ↑← shown at left
- 09.02 Greased plain bearingsMaking Year 14 needs 67 products
- 09.08 Water-blown bellowsMaking Year 16 needs 103 products
- 06.01 Double board bellows with flap valvesshown above ↑← shown at left
- 09.07 Cam shaft and trip hammer ⚠Making Year 16 needs 102 products
- 09.09 Crank and connecting rodMaking Year 16 needs 69 products
- 10.09 Pig iron ⚠Making Year 22 needs 140 products
- 04.07 Charcoal clampshown above ↑← shown at left
- 06.02 Mined and roasted iron oreshown above ↑← shown at left
- 10.03 Coke ⚠Making Year 20 needs 125 products
- 10.01 Coal mine ⚠Making Year 20 needs 123 products
- 06.30 Timbered underground mine ⚠Making Year 5 needs 77 products
- 07.35 Rock blasting ⚠Making Year 7 needs 92 products
- 06.13 Steel-edged axes, adzes and chiselsshown above ↑← shown at left
- 06.22 Picks, shovels, hoes, crowbars and sledgehammersshown above ↑← shown at left
- 07.34 Black powder ⚠Making Year 7 needs 89 products
- 04.07 Charcoal clampshown above ↑← shown at left
- 06.24 Lock and keyMaking Year 5 needs 73 products
- 07.02 Standard weights and volume measuresKnowledge Year 4 needs 74 products
- 07.32 Refined sulphur ⚠Making Year 7 needs 62 products
- 06.25 Hammered iron sheet, pans and griddlesMaking Year 5 needs 61 products
- 07.33 SaltpetreMaking Year 7 needs 60 products
- 03.21 Compost and manure heapFood Year 1 needs 20 products
- 03.14 Cleared and hoed garden plotsFood Year 1 needs 15 products
- 03.18 Animal pens and captured young stockFood Year 1 needs 17 products
- 02.11 Three-strand ropeshown above ↑← shown at left
- 02.18 Wattle hurdles and woven matsMaking Year 1 needs 14 products
- 03.01 Snares and deadfall trapsFood Year 1 needs 5 products
- 04.18 PotashMaking Year 2 needs 26 products
- 05.22 Hammered copper sheet and riveted cauldronMaking Year 3 needs 52 products
- 07.45 Wooden wagonwayMaking Year 8 needs 88 products
- 06.18 Nails, spikes and rivetsMaking Year 4 needs 62 products
- 07.13 Saw pit and sawn planksshown above ↑← shown at left
- 07.27 Two-wheel cart and four-wheel wagonMaking Year 7 needs 86 products
- 09.21 Horse whimMaking Year 20 needs 103 products
- 07.28 Pulley blocks, windlass and capstanshown above ↑← shown at left
- 08.03 Trained draught animals with yoke, collar, harness and iron shoesFood Year 7 needs 99 products
- 03.18 Animal pens and captured young stockshown above ↑← shown at left
- 06.18 Nails, spikes and rivetsshown above ↑← shown at left
- 07.17 Framed joineryshown above ↑← shown at left
- 08.02 Leather goodsCloth Year 6 needs 89 products
- 06.21 Knives, shears, sickles and scythesMaking Year 4 needs 75 products
- 06.26 Steel needles, awls and fish hooksshown above ↑← shown at left
- 08.01 Bark-tanned leatherCloth Year 6 needs 81 products
- 09.04 Wooden gearsshown above ↑← shown at left
- 10.02 Firebrickshown above ↑← shown at left
- 10.08 Blast furnace ⚠Making Year 21 needs 108 products
- 12.03 Iron-bed lathe with slide restMaking Year 30 needs 154 products
- 09.16 Powered latheMaking Year 18 needs 100 products
- 07.18 Pole latheshown above ↑← shown at left
- 09.11 FlywheelMaking Year 17 needs 87 products
- 09.12 Leather belt drive and line shaftMaking Year 17 needs 97 products
- 10.13 Cast iron gears, shafts and machine framesshown above ↑← shown at left
- 10.27 Cast-steel cutting tools and springsMaking Year 25 needs 127 products
- 06.12 Hardening and temperingshown above ↑← shown at left
- 06.14 Files and raspsshown above ↑← shown at left
- 10.26 Crucible cast steelMaking Year 25 needs 126 products
- 12.02 Straightedges and squaresMaking Year 30 needs 149 products
- 12.01 Flat surface platesMaking Year 30 needs 148 products
- 10.12 Iron castingsshown above ↑← shown at left
- 10.27 Cast-steel cutting tools and springsshown above ↑← shown at left
- 11.27 Lead oxides ⚠Making Year 27 needs 43 products
- 12.04 Master lead screwMaking Year 30 needs 156 products
- 12.17 Bonded grinding wheels and tool grinderMaking Year 32 needs 143 products
- 04.09 Updraft kilnshown above ↑← shown at left
- 09.12 Leather belt drive and line shaftshown above ↑← shown at left
- 11.13 Shellac varnishMaking Year 25 needs 128 products
- 11.10 Distilled alcohol ⚠Making Year 25 needs 127 products
- 08.14 Beer, wine and meadFood Year 9 needs 117 products
- 03.22 Log beehivesFood Year 1 needs 16 products
- 04.10 Kiln-fired potteryshown above ↑← shown at left
- 04.28 Sourdough starter and brewing yeastFood Year 2 needs 24 products
- 07.21 Barrels, buckets and tubsshown above ↑← shown at left
- 08.11 Harvest and threshing kitFood Year 9 needs 112 products
- 02.17 Basketsshown above ↑← shown at left
- 06.21 Knives, shears, sickles and scythesshown above ↑← shown at left
- 08.09 Rotating grain fieldsFood Year 8 needs 111 products
- 03.15 First planted cropsFood Year 1 needs 23 products
- 03.12 Seed collection and seed storeFood Year 1 needs 20 products
- 01.22 Safe-food listFood Year 1 needs 1 product
- 01.01 Base camp siteHome Year 1 raw materials only
- 02.17 Basketsshown above ↑← shown at left
- 03.08 Raised storehouse with rat guardsFood Year 1 needs 16 products
- 03.14 Cleared and hoed garden plotsshown above ↑← shown at left
- 03.16 Fences and thorn hedgesFood Year 1 needs 15 products
- 03.17 Irrigation ditch and bamboo water pipeFood Year 1 needs 16 products
- 03.21 Compost and manure heapshown above ↑← shown at left
- 04.15 Slaked lime, mortar, plaster and whitewashshown above ↑← shown at left
- 08.06 Iron-shared plough and harrowFood Year 7 needs 101 products
- 08.40 Cane crusher, raw sugar and molassesFood Year 16 needs 106 products
- 04.15 Slaked lime, mortar, plaster and whitewashshown above ↑← shown at left
- 06.25 Hammered iron sheet, pans and griddlesshown above ↑← shown at left
- 07.18 Pole latheshown above ↑← shown at left
- 08.03 Trained draught animals with yoke, collar, harness and iron shoesshown above ↑← shown at left
- 08.39 Sugar cane fieldFood Year 16 needs 103 products
- 11.09 Copper still with coiled condenserMaking Year 25 needs 84 products
- 11.42 Graded abrasive powdersMaking Year 29 needs 105 products
- 12.29 Pendulum clockKnowledge Year 34 needs 171 products
- 07.08 Sundial and year calendarKnowledge Year 5 needs 77 products
- 01.23 Tally-post calendarKnowledge Year 1 needs 2 products
- 07.03 Layout toolsshown above ↑← shown at left
- 10.25 BrassMaking Year 25 needs 43 products
- 12.15 Dividing head and cut gearsMaking Year 32 needs 168 products
- 10.25 Brassshown above ↑← shown at left
- 12.09 Measuring toolsMaking Year 31 needs 159 products
- 12.14 Milling machineMaking Year 32 needs 165 products
- 10.27 Cast-steel cutting tools and springsshown above ↑← shown at left
- 12.05 Screw-cutting lathe with change gearsshown above ↑← shown at left
- 12.12 Planing machineMaking Year 32 needs 164 products
- 10.13 Cast iron gears, shafts and machine framesshown above ↑← shown at left
- 12.02 Straightedges and squaresshown above ↑← shown at left
- 12.07 Bolts, nuts and machine screwsMaking Year 31 needs 163 products
- 10.18 Rolled bar, rod and railMaking Year 24 needs 151 products
- 10.17 Rolling mill ⚠Making Year 23 needs 150 products
- 12.06 Taps, dies and standard threadsMaking Year 31 needs 158 products
- 21.04 Valve amplifierMaking Year 59 needs 287 products
- 14.37 Transformer ⚠Making Year 44 needs 234 products
- 14.03 Insulated copper wireMaking Year 38 needs 185 products
- 08.22 Drop spindle and spun yarnCloth Year 11 needs 101 products
- 03.27 Hand spindle and narrow loomCloth Year 1 needs 25 products
- 07.18 Pole latheshown above ↑← shown at left
- 08.21 Prepared fibreCloth Year 11 needs 99 products
- 03.18 Animal pens and captured young stockshown above ↑← shown at left
- 03.26 Retting pit and cleaned bast fibreshown above ↑← shown at left
- 06.20 Draw plate and drawn wireshown above ↑← shown at left
- 06.21 Knives, shears, sickles and scythesshown above ↑← shown at left
- 07.18 Pole latheshown above ↑← shown at left
- 10.24 Rolled copper sheet, rod and long drawn wireMaking Year 25 needs 152 products
- 05.06 Open moulds and cast copper ingotsshown above ↑← shown at left
- 09.17 Powered wire-drawing benchMaking Year 19 needs 77 products
- 10.17 Rolling millshown above ↑← shown at left
- 11.13 Shellac varnishshown above ↑← shown at left
- 12.03 Iron-bed lathe with slide restshown above ↑← shown at left
- 14.15 Laminated iron coreMaking Year 40 needs 175 products
- 10.19 Iron plate and sheetMaking Year 24 needs 151 products
- 11.13 Shellac varnishshown above ↑← shown at left
- 12.24 Plate punch, shears and hot rivetingMaking Year 33 needs 152 products
- 14.36 Alternator ⚠Making Year 43 needs 233 products
- 14.15 Laminated iron coreshown above ↑← shown at left
- 14.16 Self-exciting dynamo ⚠Making Year 40 needs 232 products
- 10.13 Cast iron gears, shafts and machine framesshown above ↑← shown at left
- 12.19 White-metal bearings with oil cupsMaking Year 32 needs 185 products
- 05.08 Smelted tinshown above ↑← shown at left
- 11.38 Mineral lubricating oil and greaseMaking Year 28 needs 179 products
- 04.19 SoapHome Year 2 needs 33 products
- 11.35 Oil still ⚠Making Year 28 needs 176 products
- 10.19 Iron plate and sheetshown above ↑← shown at left
- 11.09 Copper still with coiled condensershown above ↑← shown at left
- 11.18 Sulphuric acid ⚠Making Year 26 needs 157 products
- 05.27 Lead sheet, weights and pipe ⚠Making Year 3 needs 49 products
- 07.32 Refined sulphurshown above ↑← shown at left
- 07.33 Saltpetreshown above ↑← shown at left
- 11.04 Laboratory glasswareMaking Year 24 needs 154 products
- 11.02 Blown glassMaking Year 24 needs 153 products
- 10.22 Welded iron pipeMaking Year 24 needs 151 products
- 11.01 Glass furnace and melted glassMaking Year 24 needs 79 products
- 11.22 Caustic soda ⚠Making Year 26 needs 29 products
- 04.15 Slaked lime, mortar, plaster and whitewashshown above ↑← shown at left
- 11.21 Soda ashMaking Year 26 needs 23 products
- 11.34 Drilled oil well ⚠Making Year 28 needs 164 products
- 02.27 Bitumen from the oil seepMaking Year 1 needs 9 products
- 07.30 Rope walkMaking Year 7 needs 94 products
- 09.18 Suction pump and bored-log pipesMaking Year 19 needs 90 products
- 10.22 Welded iron pipeshown above ↑← shown at left
- 10.27 Cast-steel cutting tools and springsshown above ↑← shown at left
- 11.47 Antimony ⚠Making Year 29 needs 59 products
- 12.03 Iron-bed lathe with slide restshown above ↑← shown at left
- 14.03 Insulated copper wireshown above ↑← shown at left
- 14.04 ElectromagnetMaking Year 38 needs 202 products
- 06.05 Wrought iron barshown above ↑← shown at left
- 14.02 Daniell cellMaking Year 38 needs 178 products
- 04.10 Kiln-fired potteryshown above ↑← shown at left
- 11.02 Blown glassshown above ↑← shown at left
- 11.18 Sulphuric acidshown above ↑← shown at left
- 11.25 Blue and green vitriolMaking Year 27 needs 158 products
- 11.26 Zinc metal ⚠Making Year 27 needs 37 products
- 14.01 Voltaic pileMaking Year 38 needs 169 products
- 03.06 Saltshown above ↑← shown at left
- 08.26 Fulled cloth and feltCloth Year 12 needs 110 products
- 04.19 Soapshown above ↑← shown at left
- 08.25 Woven clothCloth Year 12 needs 106 products
- 08.23 Spinning wheelCloth Year 12 needs 104 products
- 08.24 Treadle loomCloth Year 12 needs 102 products
- 10.24 Rolled copper sheet, rod and long drawn wireshown above ↑← shown at left
- 11.26 Zinc metalshown above ↑← shown at left
- 14.03 Insulated copper wireshown above ↑← shown at left
- 14.13 Hand-cranked magnetoMaking Year 40 needs 215 products
- 14.14 Commutator and brushesMaking Year 40 needs 171 products
- 14.15 Laminated iron coreshown above ↑← shown at left
- 15.28 Vacuum tubeMaking Year 47 needs 275 products
- 11.48 Nickel and resistance alloyMaking Year 29 needs 44 products
- 12.26 Valves, cocks and threaded pipe fittingsMaking Year 33 needs 164 products
- 14.23 Mercury vacuum pump ⚠Making Year 41 needs 156 products
- 11.04 Laboratory glasswareshown above ↑← shown at left
- 11.14 Mercury ⚠Making Year 25 needs 152 products
- 14.46 Tungsten-filament lampMaking Year 45 needs 273 products
- 14.23 Mercury vacuum pumpshown above ↑← shown at left
- 14.24 Incandescent lampMaking Year 42 needs 267 products
- 11.02 Blown glassshown above ↑← shown at left
- 14.17 Steam-driven generating set ⚠Making Year 40 needs 264 products
- 13.05 Boiler house and brick chimneyMaking Year 35 needs 171 products
- 04.11 Fired bricks and roof tilesshown above ↑← shown at left
- 04.15 Slaked lime, mortar, plaster and whitewashshown above ↑← shown at left
- 10.02 Firebrickshown above ↑← shown at left
- 13.02 Riveted iron boiler ⚠Making Year 34 needs 170 products
- 10.19 Iron plate and sheetshown above ↑← shown at left
- 12.24 Plate punch, shears and hot rivetingshown above ↑← shown at left
- 12.25 Plate-bending rollsMaking Year 33 needs 151 products
- 13.01 Test boiler with weighted safety valve ⚠Making Year 34 needs 166 products
- 13.26 High-speed enclosed engine ⚠Making Year 39 needs 248 products
- 12.18 Precision grinding machineshown above ↑← shown at left
- 12.19 White-metal bearings with oil cupsshown above ↑← shown at left
- 13.11 Flyball governor and throttle valveMaking Year 36 needs 208 products
- 12.15 Dividing head and cut gearsshown above ↑← shown at left
- 12.26 Valves, cocks and threaded pipe fittingsshown above ↑← shown at left
- 13.10 Rotative beam engine ⚠Making Year 36 needs 207 products
- 09.09 Crank and connecting rodshown above ↑← shown at left
- 09.11 Flywheelshown above ↑← shown at left
- 10.13 Cast iron gears, shafts and machine framesshown above ↑← shown at left
- 13.08 Separate condenser and air pumpMaking Year 35 needs 191 products
- 10.22 Welded iron pipeshown above ↑← shown at left
- 12.26 Valves, cocks and threaded pipe fittingsshown above ↑← shown at left
- 13.06 Atmospheric beam engine ⚠Making Year 35 needs 190 products
- 07.17 Framed joineryshown above ↑← shown at left
- 09.18 Suction pump and bored-log pipesshown above ↑← shown at left
- 12.11 Cylinder boring millMaking Year 31 needs 151 products
- 13.04 Water pressure test of every boiler ⚠Making Year 35 needs 188 products
- 09.19 Bronze force pumpMaking Year 19 needs 94 products
- 13.03 Boiler fittingsMaking Year 34 needs 182 products
- 13.09 Double-acting cylinder with slide valve and eccentricMaking Year 36 needs 180 products
- 12.12 Planing machineshown above ↑← shown at left
- 12.13 ShaperMaking Year 32 needs 165 products
- 13.07 Steam-tight piston, rings and stuffing boxMaking Year 35 needs 168 products
- 13.25 Compound engine ⚠Making Year 39 needs 215 products
- 13.08 Separate condenser and air pumpshown above ↑← shown at left
- 13.16 High-pressure horizontal engine ⚠Making Year 37 needs 206 products
- 13.24 Engine indicatorMaking Year 38 needs 212 products
- 08.34 PaperKnowledge Year 14 needs 110 products
- 12.28 Pressure gaugeshown above ↑← shown at left
- 13.16 High-pressure horizontal engineshown above ↑← shown at left
- 14.16 Self-exciting dynamoshown above ↑← shown at left
- 14.23 Mercury vacuum pumpshown above ↑← shown at left
- 14.45 Tungsten metal ⚠Making Year 45 needs 269 products
- 05.04 Ore dressing floorshown above ↑← shown at left
- 11.20 Hydrochloric acid ⚠Making Year 26 needs 160 products
- 11.21 Soda ashshown above ↑← shown at left
- 12.27 Hydraulic pressMaking Year 34 needs 157 products
- 14.44 Hydrogen and oxygen from water by electric current ⚠Making Year 45 needs 265 products
- 18.01 Standard resistors and capacitorsMaking Year 52 needs 215 products
- 11.43 Asbestos and mica insulationshown above ↑← shown at left
- 11.46 Graphite productsKnowledge Year 29 needs 83 products
- 11.48 Nickel and resistance alloyshown above ↑← shown at left
- 14.07 Circuit hardwareMaking Year 39 needs 158 products
- 05.28 Soft solder and solderingshown above ↑← shown at left
- 10.25 Brassshown above ↑← shown at left
- 11.41 Hard rubberMaking Year 28 needs 154 products
- 11.39 Vulcanised rubber ⚠Making Year 28 needs 153 products
- 07.32 Refined sulphurshown above ↑← shown at left
- 08.38 Raw rubber sheetMaking Year 15 needs 78 products
- 10.17 Rolling millshown above ↑← shown at left
- 14.18 Electrical measuring instrumentsMaking Year 41 needs 206 products
- 23.11 NOT gateMaking Year 84 needs 293 products
- 15.28 Vacuum tubeshown above ↑← shown at left
- 18.01 Standard resistors and capacitorsshown above ↑← shown at left
- 23.05 Two-state numbers and the algebra of logicKnowledge Year 78 needs 190 products
- 07.23 School and apprenticeshipKnowledge Year 6 needs 91 products
- 07.05 The RecordKnowledge Year 4 needs 80 products
- 01.23 Tally-post calendarshown above ↑← shown at left
- 07.04 Parchment, ink and pensKnowledge Year 4 needs 78 products
- 07.22 FurnitureHome Year 6 needs 83 products
- 12.16 Calculating tables and slide ruleKnowledge Year 32 needs 187 products
- 23.18 Register and counterMaking Year 88 needs 320 products
- 23.15 Flip-flopMaking Year 86 needs 312 products
- 23.12 NOR gateMaking Year 85 needs 309 products
- 23.09 OR gateMaking Year 84 needs 307 products
- 18.01 Standard resistors and capacitorsshown above ↑← shown at left
- 23.05 Two-state numbers and the algebra of logicshown above ↑← shown at left
- 23.07 Crystal diodeMaking Year 82 needs 294 products
- 11.04 Laboratory glasswareshown above ↑← shown at left
- 15.30 Radio receiverKnowledge Year 48 needs 289 products
- 14.32 Dry cellMaking Year 43 needs 179 products
- 11.26 Zinc metalshown above ↑← shown at left
- 11.30 Ammonia and sal ammoniacMaking Year 27 needs 163 products
- 11.20 Hydrochloric acidshown above ↑← shown at left
- 11.28 Coal gas works and gas light ⚠Making Year 27 needs 153 products
- 14.21 Carbon rodsMaking Year 41 needs 168 products
- 14.33 TelephoneKnowledge Year 43 needs 226 products
- 14.03 Insulated copper wireshown above ↑← shown at left
- 14.06 Permanent steel magnetsshown above ↑← shown at left
- 14.10 TelegraphKnowledge Year 39 needs 216 products
- 09.17 Powered wire-drawing benchshown above ↑← shown at left
- 11.02 Blown glassshown above ↑← shown at left
- 11.49 Zinc-coated iron wire and sheetMaking Year 29 needs 166 products
- 14.02 Daniell cellshown above ↑← shown at left
- 14.04 Electromagnetshown above ↑← shown at left
- 14.07 Circuit hardwareshown above ↑← shown at left
- 14.32 Dry cellshown above ↑← shown at left
- 15.28 Vacuum tubeshown above ↑← shown at left
- 18.02 RectifierMaking Year 52 needs 279 products
- 14.34 Electrically refined copperMaking Year 43 needs 267 products
- 10.24 Rolled copper sheet, rod and long drawn wireshown above ↑← shown at left
- 11.25 Blue and green vitriolshown above ↑← shown at left
- 14.08 ElectroplatingMaking Year 39 needs 180 products
- 11.19 Nitric acid ⚠Making Year 26 needs 158 products
- 11.25 Blue and green vitriolshown above ↑← shown at left
- 14.02 Daniell cellshown above ↑← shown at left
- 14.17 Steam-driven generating setshown above ↑← shown at left
- 15.28 Vacuum tubeshown above ↑← shown at left
- 23.11 NOT gateshown above ↑← shown at left
- 23.13 NAND gateMaking Year 85 needs 309 products
- 23.16 Clock pulse generatorshown above ↑← shown at left
- 23.19 Decoder and selector circuitsMaking Year 88 needs 310 products
- 23.23 Magnetic drum storeMaking Year 89 needs 338 products
- 14.38 Induction motorMaking Year 44 needs 234 products
- 21.19 Magnetic tapeMaking Year 70 needs 250 products
- 20.03 Cellulose lacquer and enamel paintMaking Year 58 needs 236 products
- 08.37 Linseed oil paint and varnishMaking Year 15 needs 118 products
- 11.19 Nitric acidshown above ↑← shown at left
- 11.23 Wood pulpMaking Year 26 needs 115 products
- 16.14 Paint spray gunMaking Year 56 needs 226 products
- 08.37 Linseed oil paint and varnishshown above ↑← shown at left
- 11.40 Rubber goodsMaking Year 28 needs 171 products
- 13.23 Gas compressor ⚠Making Year 38 needs 207 products
- 20.02 AcetoneMaking Year 56 needs 157 products
- 20.04 Plastic filmMaking Year 60 needs 196 products
- 11.23 Wood pulpshown above ↑← shown at left
- 14.41 PhotographyKnowledge Year 44 needs 180 products
- 05.26 Silver ⚠Making Year 3 needs 42 products
- 11.03 Window glassshown above ↑← shown at left
- 11.19 Nitric acidshown above ↑← shown at left
- 12.34 Colour-corrected lensesMaking Year 35 needs 127 products
- 11.05 Ground lensesMaking Year 24 needs 124 products
- 09.15 Powered grinding and polishing wheelsMaking Year 18 needs 119 products
- 11.01 Glass furnace and melted glassshown above ↑← shown at left
- 11.27 Lead oxidesshown above ↑← shown at left
- 15.35 Acetic anhydride ⚠Making Year 48 needs 167 products
- 20.02 Acetoneshown above ↑← shown at left
- 21.20 Tape player and recorderKnowledge Year 72 needs 337 products
- 14.26 Electric motorMaking Year 42 needs 233 products
- 20.09 Magnet and core alloysMaking Year 64 needs 299 products
- 11.48 Nickel and resistance alloyshown above ↑← shown at left
- 14.06 Permanent steel magnetsshown above ↑← shown at left
- 14.15 Laminated iron coreshown above ↑← shown at left
- 18.10 Electric arc furnace ⚠Making Year 57 needs 298 products
- 10.02 Firebrickshown above ↑← shown at left
- 14.21 Carbon rodsshown above ↑← shown at left
- 14.37 Transformershown above ↑← shown at left
- 15.25 Island power gridMaking Year 47 needs 293 products
- 14.17 Steam-driven generating setshown above ↑← shown at left
- 14.31 Battery room and charging board ⚠Making Year 43 needs 278 products
- 11.15 Thermometer, barometer and hydrometerMaking Year 26 needs 177 products
- 14.19 SwitchboardMaking Year 41 needs 213 products
- 14.30 Pasted-plate storage battery ⚠Making Year 43 needs 270 products
- 11.27 Lead oxidesshown above ↑← shown at left
- 11.41 Hard rubbershown above ↑← shown at left
- 14.29 Lead-acid cell ⚠Making Year 42 needs 265 products
- 14.38 Induction motorshown above ↑← shown at left
- 15.24 High-voltage power line ⚠Making Year 47 needs 277 products
- 11.07 Salt-glazed stonewareshown above ↑← shown at left
- 14.34 Electrically refined coppershown above ↑← shown at left
- 14.37 Transformershown above ↑← shown at left
- 15.23 Hydro-electric station at the fallsMaking Year 47 needs 240 products
- 09.01 Weir, mill pond and millrace with sluice gateshown above ↑← shown at left
- 11.45 Concrete and iron-reinforced concreteMaking Year 29 needs 167 products
- 10.18 Rolled bar, rod and railshown above ↑← shown at left
- 11.44 Portland cementMaking Year 29 needs 150 products
- 04.14 Lime kiln and quicklimeshown above ↑← shown at left
- 09.05 Water-powered flour millFood Year 15 needs 126 products
- 08.12 Rotary hand quernFood Year 9 needs 118 products
- 09.03 Undershot water wheelshown above ↑← shown at left
- 09.04 Wooden gearsshown above ↑← shown at left
- 09.14 Stamp millshown above ↑← shown at left
- 10.02 Firebrickshown above ↑← shown at left
- 10.03 Cokeshown above ↑← shown at left
- 14.36 Alternatorshown above ↑← shown at left
- 15.22 Water turbineMaking Year 46 needs 160 products
- 21.04 Valve amplifiershown above ↑← shown at left
- 21.05 MicrophoneMaking Year 60 needs 296 products
- 21.06 SpeakerMaking Year 60 needs 288 products
- 21.19 Magnetic tapeshown above ↑← shown at left
Open a box to see what it needs. A dashed box is a product already drawn in full: click it to jump there. In the org chart, drag to move around.
The step-by-step procedure for this entry has not been written yet.