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State Government

CTN :45720557 Due date: 18 Jul, 202618 Jul, 2026 NA
Tender For useful chemicals/required materials for research work in tissue culture lab indore related tender - -, agar aagar(grm 666 500 gm himidia), absisic acid(pct 0815-100mg), activated charcoal(pct100-100g], alluminium foil(72 mtr), cierygel pct0903-1kg, bap cbenzylamino purinepct0802-25g, boric acid powder pct 580m-500g, calcium chloride500g, copper sulphatepct004-500gpct0104-250g, cobalt chloridepct 0103-100gpct, citric acidpct 501-500g, 2,4 dichlorophenoxy acitic acid {pct 0825-100g}, ferrous sulphate hepahydrate (feso4) pct 0111-500gm, formaldehyde soil14560-2.5ltr, hcl hydrochloric acid 5ltr, iaa (indol acetic acid)pct 0831-5g, iba(indol buteric pct0804-5g), ipa isopropil alcohol25ltr lr(161271), inosital pct 0208 100gmpct 0208-100g, iron iii sulphate pct 0111- 500gm, kinetinpct0800-5g, laboleneph 5 ltr(42218), l-ascorbic acidpct 0207-50g, magnessium sulphate mono hydrate pure mgso4500g, magnese sulphate mnso4pct 0113-500g, gibbrelic acid pct 0830-1g, glycinepct 0310-500g, ms suppliment pt778-100l, mercuric chloridepct1512-100g, nicotinic acidpct0210-25g, naa (naphathelene acitic acidpct 0809-25g, potassium iodide (ki)pct 0116-100g, pyridoxine hcipct 0212-10g, potassium di hydrogenpct 0009-500g, potassium chloride 99%pct 0012-500g, pvp polyvinylepyrralidonepct 1003-100g, potassium permagnate (500 gram), potassium nitratepct0010-500g, potassium sulphatepct0011-500g, putrescine dihydro chloridepct0811-1g, phloroglucinolpct0836-25g, sodium molybdatepct0117-100g, sodium hydroxidepct1325-500g, sucrose loba sucrose extrapure 25kg, triplex iii(edta) 500gm, thymine hclpct 0215-25g, tdz (thi dia zaronpct 0820-250mg), zinc sulphate hephahydrate znso4pct 0118-500g, floor cleaner solution ross fcsbr201 power, -, mis plastic laboratory tray 450*350*75 mm, surgical holder, surgical blade 24 no., forcepes 12 inch, dispossable gloves(fis nitril gloves), dispossable face mask, dispossable head cap, dispossable shoe cap, phytawrap pla002 -1*10no, test tubes with cap25*150mm, wensor- precision balance pgb220, petriplate(150*25mm)(3165), cotton bundle (500 gram), fire extenguisher)4kg(type a,b,c,d,k), tissue culture bottles with cup (as per), one litr measuring mug, borosil measuring cylinder 1000 ml, borosil measuring cylinder 100 ml, borosil measuring cylinder 50 ml, borosil measuring cylinder 25 ml, borosil measuring cylinder 10ml, 10 litre measuring jar, tissue roll

CTN :45738001 Due date: 11 Jul, 202611 Jul, 2026 NA
Tender For supply of inch l , micro meter changeable anvil 0 to150 mm , measuring tape steel 3000 mm , precision file square with handle 8 inch comma 2nd cut , precision file half round with handle 8 inch comma 2nd cut , set of hand tap , chest comma tool feet j feet , gauntlets prospective welder leather , brushes steel wire 32 mm , portable welding machine , launch into 431 pr03 with hdiii car or truck , mahindra garuda ii i smart diagnostic tool , jaltest by cajoli ottw off highway equipment diagnostic tool 12v plus 24v , jaltest by cajoli cv truck comma bus comma light commercial vehicle 12v plus 24v , garuda 2vc1 professional grade comma j2534 compliant diagnostic tool for tata cv bs3 comma bs4 comma bs6 , cummins diagnostic tool inline 7 , jcb e into cavator construction diagnostic scanner electronic service tool with diagnostic , banjo washer aluminium , cotton waste , anabond red , o clamp 10 mm , emery paper rough or fine , banjo belt , banjo union , hose pipe 10 mm fle into ible , m seal , araldite big 90 gm , wd 40 rust remover , o ring set o size , valve grinding stick , valve grinding past rough or smooth , battery lead positive and negative , battery terminal h by d positive , battery terminal h by d negative , battery led pb for pole , battery thimble h by d , welding rod , flu into for gas welding , gas welding brazing rod 2 point 5 mm into 450 brass , gas welding brazing rod 2 point 5 mm into 450 aluminum , hand gloves leather , shoes for welding , welding appron leather , electeric holder heavy duty 100 ampere , welding cable copper 28 point 59 mm , stainless steel welding tong , aceteylene regulator , o into ygen regulator , torch with nozzle , supreme high pressure gas welding blow pipe , hose aceteylene gas cly , hose o into ygen gas cly , welding cutter blade size 107 into 1 point 3 into 16 mm , injector stage 3 tool kit , torque wrench , torque wrench digital small , bearing puller , mech jack chassis 10 ton , hydraulic jack chassis 10 to 15 ton , bailey plate jack 3 to 4 ton , magnet stick , ultrasonic cleaner , e-star socket and bit socket set , oil drip tray pan , pneumatic transmission oil filling tool with adaptor , heavy duty socket , vice bench heavy duty , dc test lamp digital automatic circuit tester , stanley 94 to 181 comma 150 piece high quality multi tool kit comma containing spanner comma driver sockets bits comma wrenches , vice bench small size , gauge chisel 38 mm , firmer chisel 26 mm , mortise chiesel 12 mm , combination ston , claw hammer , jack planer , pincer , planer machine , portable rotter machine , side cutting paier , circular saw blade 6 inch three square engineer scrapper with handle 100mm, chisel cold flat 25 mm x 200 mm, chisel 6", 9", hammer engineer's ballpin 400 gm, gauge thickness feeler type 0.03 to 0.5 mm, plier circlip external straight nose, plier circlip internal straight nose, spark plug socket 16 mm, spark plug socket 21 mm, hexagon socket head 0.5 inch square drive 10 mm to 32 mm, master tool kit 150 pcs , recersible rachet 0.5 inch square drive 250 mm, torque wrench 0.5 inch square drive 200 mm, allen key long ball point 10 mm, pad lock, pop spanner 6 x 22 mm, pop spanner 15 x 41 mm, nose plier 8", cutting plier 12", adjustable 12', file flat 6", 12", half round file 6", 12", round file 6", 9", 12", star screw driver 6", 9", 12", oil filter remover, torx key t30, injector remover socket 19 mmfor tata 697 bs iii & 497 bs ii, needle file set r, t & p, hammer electrician 200 gm, clamp on multi meter, digital multi meter, continuity tester, hexagon socket head size 6 mm to 42 mm, spinner handle 0.5 inch square drive, //bid details 2 / 91

CTN :45708645 Due date: 08 Jul, 202608 Jul, 2026 NA
Tender For supply of precision balance and digital balance

CTN :45676692 Due date: 09 Jul, 202609 Jul, 2026 NA
Tender For purchase of fire safety and fighting laboratory equipment for fts department - purchase of fire safety and fighting laboratory equipment for fts department, cleveland open cup (coc) apparatus standard compliance: astm d92 / is 1448 (part 69) test method: open cup flash and fire point determination test cup: brass, precision machined with heat resistant handle heater: electric heater (1000 w 10% nickel chromium) with variable control heating rate: 5 c per minute (as per standard) temperature range: (-6 to 400) c thermometer: astm 11c or equivalent flame applicator: gas test flame with fine control valve body: stainless steel housing display: analog / digital temperature indicator power supply: 230v ac, 50 hzsafety: overheat protection heat insulation, pensky-martens closed cup apparatus standard compliance: astm d93 / is 1448 (part 21) type: pensky-martens closed cup (motorized, digital type preferred) test cup: brass cup diameter: 50.7 50.8 mm capacity: minimum 70 ml stirring system: heater: electric heater 650 w 10% heating rate: 1 12 c/min adjustableignition:pilot flame with automatic shutter mechanismtemperature measurement:thermometer or digital sensor (ip-28c or astm)digital temperature displaypower supply:230v ac, 50 hzsafety: over-temperature cut-off flame safety control

CTN :45696125 Due date: 13 Jul, 202613 Jul, 2026 NA
Tender For supply of equipment for mechanical engineering department - supply of equipment for mechanical engineering department, lathe machine :specification :bed: 2v & 2 flat, induction hardened and ground minimum bed length: 1375 mm bed width: 240 mm capacity: height of centre: 165 mm swing over bed: 320 mm swing over gap: 510 mm swing over cross slide: 180 mm distance between centres: 650 mm slides: cross slide travel: 200 mm compound slide travel: 115 mm spindle: spindle bore: 40 mm spindle nose: thread type, 62 mm spindle taper: mt-3 tail stock: quill diameter: 38.1 mm taper: mt-3 travel: 120 mm speed: no. of speeds: minimum 8 range: (40 800 )rpm threading: metric: (1 6 )mm (min 13 steps) english: (2 24 )tpi (min 19 steps) lead screw: (1 4) tpi electrical: motor: 1.5 hp, 230v/415v, 50 hz drive: v-belt structure: bed: close-grained cast iron (fg 260) gears: hardened steel base: rigid cast iron stand , open cup apparatus :specification :standard compliance: astm d92 / is 1448 (part 69) test method: open cup flash and fire point determination test cup: brass, precision machined with heat resistant handle heater: electric heater (1000 w 10% nickel chromium) with variable control heating rate: 5 6 c per minute (as per standard) temperature range: -6 to 400 c thermometer: astm 11c or equivalent flame applicator: gas test flame with fine control valvebody: stainless steel housing display: analog / digital temperature indicator power supply: 230v ac, 50 hz safety: overheat protection heat insulation , closed cup apparatus :specification :standard compliance: astm d93 / is 1448 (part 21) test cup:brass cup diameter: 50.7 50.8 mm capacity: minimum 70 ml stirring system heater: electric heater 650 w 10% heating rate: 1 12 c/min adjustable ignition: pilot flame with automatic shutter mechanism temperature measurement: thermometer or digital sensor(ip-28c or astm) display: digital temperature display power supply: 230v ac, 50 hz safety:over-temperature cut-off flame safety control , tail stock assembly :specification :medium-duty tailstock assembly for dismantling & assembly quill stroke: minimum 75 mm taper: mt-3 (preferred standard) feed: hand wheel operated features: set-over screws for taper turning spindle locking arrangement body: cast iron (fg 260) spindle: hardened steel, slip gauge :specification :set size: m87 (87 pieces) or equivalent range: 1.001 mm to 100 mm step sizes: 0.001 mm 0.005 mm 0.01 mm material: high-grade alloy steel / tungsten carbide (preferred) hardness: hrc 63 65 accuracy: grade: grade 1 or grade 2 flatne flatness / parallelism: 0.5 m stored in protective wooden boxes to prevent wear; calibration grades include charts for exact sizes , dc motor:specification :type: dc shunt motor (dismantling model) power: minimum 0.5 hp voltage: 220 v dc speed: 1500 rpm poles: 4 pole construction: laminated stator salient poles accessible armature features: cut section / open type suitable for dismantling and reassembly, hydraulic cylinder :specification :bore diameter: 50 mm stroke length: 250 mm working pressure: 160 bar cylinder tube: honed steel piston rod: hard chrome plated seals: standard industrial seals end caps: steel calibration grades include charts for exact sizes supply: mounted on training base suitable for dismantling and inspection , hydraulic operated directional control valves (dcv):specification :type: manual spool type dc valve configuration: 4/2 way size: ng06 (cetop 3) rated pressure: 210 bar flow capacity: 20 40 lpm body: hardened steel / cast steel spool: ground and hardened ports: clearly marked (p, a, b, t) supply: mounted on training plate suitable for dismantling and study , bearing with shaft assembly :specification :bore diameter: 50 mm stroke length: 250 mm working pressure: 160 bar cylinder tube: honed steel piston rod: hard chrome plated seals: standard industrial seals end caps: steelsupply:mounted on training base suitable for dismantling and inspection , coupling unit using driving and dr

CTN :45686379 Due date: 15 Jul, 202615 Jul, 2026 NA
Tender For finalization of rate contract of dental equipment and dental material - dental material, hybrid light-cure kit pack of 5x4 g syringe with 7th gen. bond kit, paper point 15-40 pack of 200 pieces, gutta-percha points gp point 15-40 pack of 120 pieces, suction tips pack of 100 pieces, temporary filling material pack of 40 g, root canal sealer tube of 13 g, edta paste 3g syringe pack, etching gel tube 3ml syringe pack, endo rotory file 21mm pack of 6 file, endo rotory file 25mm pack of 6 file, gp point 4% all size pack of 120 points, gp point 6% all size pack of 120 points, paper point 4% all sizes pack of 120 points, paper point6% all sizes pack of 120 points, formocresol bottle 15 ml, gutta-percha (gp) solvent bottle 15ml, articulating paper packet of 24 slips, polishing paste pack of 45g, polishing cups 1 piece, mta biocermic sealer pack of 2 gm syringe, sodium hypo 3% bottle of 500ml, hand protaper file set of 6 21 mm s1, hand protaper file set of 6 21 mm s2, hand protaper file set of 6 21 mm sx, hand protaper file set of 6 21 mm f1, hand protaper file set of 6 21 mm f2, hand protaper file set of 6 21 mm f3, flow able composite 2gm syringe, glass ionomer cement type ii p-15g, l-8 ml with mixing pad spatula, zirconomer reinforced gic p-12g, l-5 ml with mixing pad spatula, light cure syrings all shade rate of one syringe 1x4 gm composite syringes, light cure bond 7 gen 1x5 ml bond with applicator tips, high level instrument disinfection (liquid) pack of 5 ltr, antiseptic solution pack size 100 ml, sterilizing & disinfection solution pack of 5 ltr, handpiece oil bottle of 550 ml oil spray, clinical instrument trolly 6 drawers and 4 inserts with stainless steel (ss) top, cotton roll pack of 500gm, examination gloves box of 100 pieces, rvg sleeves pack of 500 pieces, face mask 3 ply/3-layer pack pack of 50 pieces, betadine 5 % bottle of 500ml, bioceramic root canal sealer pack of 3 g syringe, rubber base material putty with light body putty base 900 ml with light body 140ml, denture relining material for denture repair soft liner 50g powder +25ml x 2 liquid + dropper +measuring cup one pack, cotton buff for denture polishing size 4 inches, lathe wheel for denture trimming 3 inch wheel, sand paper mandrel for denture trimming, acrylic stone for denture trimming & finishing acrylic white/ black/ green, carbide trimmer for denture trimming carbide carbide trimmer size conical / round / small /medium size, polishing cake for denture polishing for denture polishing polishing cake pack of 100 g cake, denture cleaning kit for denture cleaning denture cleaning paste pack of 80g instant denture cleaning paste, calcium hydroxide paste usfda/ european ce approved catalyst 11 gm base 13 gm, glass ionomer luting cement usfda/ european ce approved powder 35 gm liquid 25 ml type 1, zinc phosphate cement pack powder 35 gm powder zno, mno, powder, liquid 15 ml phosphoric acid, silver reinforced glass ionomer cement usfda/ europan ce approved p 35 gm, l- 10 ml, head cap dispo pack of 100 pieces, dental equipment, led light cure unit led light cure unit cordless one unit, endomotor led cordless endomotor with led one unit, apexlocater 5th gen 5th gen apex locater one unit, root elevator rust free stainless steel (ss) kit set of 10 pieces (root elevator hockey stick (right & lift) 02 straight elevator 2mm 01, 3mm 01, 4.5mm 01 warwick james elevator straight 01 apexo elevator (right & lift) 02 cryer elevator (right & lift) 02, filling instrument teflon coated rust free stainless steel (ss) kit set of 6 pieces, model trimmer 10 inches diameter, indian diamond wheel, heavybaseinletoutflow water system heavy duty equipped with 2 wall bearings motor., hydraulic bench press hydraulic press for flask one unit, dental x- ray portable for rvg portable precision imaging for modern professionals x-rayrvg aerb approved, rvg ergonomically optimized cut corners, bringing high patient occlusal comfort pixel matrix 1200*1650 active area 24*33 size

Central Government/Public Sector

CTN :45681834 Due date: 29 Jun, 202629 Jun, 2026 NA
Tender For supply of brake accessories and overhauling of e.p brake equipment of sona blw precision forgings ltd make to pl no. 31357441 (memu/dmc/3ph) as per the list of items mentioned in annexure-a and scope of work as per annexure-b. [ warranty period: 30 months after the date of delivery ] ]

CTN :45661153 Due date: 07 Jul, 202607 Jul, 2026 NA
Tender For equipment items - parallelogram law apparatusparallelogram law of forces apparatus fitted with stand, travelling microscopebranded travelling microscope 0-200 mm horizontal and 0-150 mm vertical measurement (two separate experiment), helical spring apparatusstructure: a rigid support mounted on a heavy metal base, typically cast iron, to ensure stability during tests. springs: high-tensile steel spiral springs, typically (approx 25 mm) diameter, (100 mm) long. measurement scale: a vertical steel meter scale, usually with (1mm) graduations, for precise deflection measurement. loading mechanism: a, typically (50g), hook-attached weight hanger at the bottom. pointer: a fine pointer attached to the bottom of the spring moves along the scale. accessories: includes a set of slotted weights (e.g., (6times 50g) or similar sets) for incremental loading., boyle s law apparatusthe apparatus includes the quill tube, a retort stand, a clamp, and a mounted meter scale. quill tube specifications: length: approximately 50 cm. bore diameter: uniform bore, roughly 1 mm to 2 mm. construction: glass tube with one end sealed. trapped substance: a mercury pellet (or thread) of length 10 to 15 cm is introduced to enclose a column of air. mounting: attached to a half-meter or meter scale., torsion pendulumtorsional pendulum metallic disc, symmetrical masses and pendulum stand, steel wire, compound bar pendulumone meter long iron strip well painted with holes at a distance of every 5 cm and also with pair of brackets and a heavy base table top stand with stop clock, viscosity apparatusstokes apparatus with metre scale attached and long cylindrical glass jar, glass beads small size (1 box), screw gauge (0-15 mm), sonometer apparatussonometer with meter scale attached along with knife edge, tuning forks set 256, 384, 512 ranges, hammer, slotted weight -500 gm each to a total of 3 kg. brass wire (5 m), metre bridgetype: 1 m length, with uniform wire (resistance wire) material: constantan or manganin (low temperature coefficient) scale: 0 100 cm, engraved or printedbase: wooden or metal, rigid, non-conductive supportjoints / terminals: brass or copper, fixed for connections2. galvanometertype: analog, moving coil or digital (for null detection) range: sensitive to detect micro-ampere currentsinternal resistance: high, typically ~100 or as specified5. cells / power supplytype: leclanch cells (1.5 v each) or dc power supplynumber: 2 4 cells in series (or supply ~3 6 v), ohms law verification kitbattery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), standard resistance coil of 1, 2 ohm (2-set) wound on a wooden bobbin, joule calorimeter apparatuscopper vessel, battery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), thermometer (alcohol), stop clock, potentiometer apparatusit features a 1-meter to 10-meter constantan/ manganin wire stretched on a wooden or sunmica baseboard with a millimeter scale. it includes 4mm brass terminals, a pencil jockey for contact, wire options (10 wires), and a typical resistance range of 10-20 ohms, ideal for high-precision voltage measurements., solar cell kitthe apparatus consist of variable dc power supply, led, solar cell and two multimeters (or an ammeter and a voltmeter). a variable dc power supply of 0-5v. light source is provided by led. the illumination intensity of the led can be controlled, deflection magnetometer apparatusdeflection magnetometer apparatus with compass box and two short bar magnets, ic regulated battery eliminatoric regulated, input: 230v ac; output: 0-12v dc in steps of 2v; capacity: 1a or 2a., galvanometermoving coil type, 30-0-30 scale, unbranded with bhel specification-sensitivity 0.143mm/v, ammeterdc (0 -2 amp), voltmeterdc voltmeter; range 0 10 v, analog, decade resistance boxresistance box 12 month warranty (dial type) - manganin coil-2 dia

CTN :45664078 Due date: 29 Jul, 202629 Jul, 2026 NA
Tender For supply of set of accessories for vande bharat train set wheel ctrb mounting and dismounting equipment . 1. auxiliary shoes for t18 part no sepl/as/t18/100-70t or similar. 2. guide tube for t18 part no sepl/gt/t18/100-70t or similar. note: 1. auxiliary shoe should fit in between ctrb and rear cover for dismounting 2. guide tube must have three holes equispaced of 84 pcb to suit the axle end holes for mounting of ctrb. make brand sumanglan/precision or similar (set of accessories should suit ctrb. mounting and dismounting equipment model no - sepl/ctrb/lhb/100-70t make sumanglam. [ warranty period: 30 months after the date of delivery ] ]

CTN :45633827 Due date: 06 Jul, 202606 Jul, 2026 NA
Tender For purchase of non consumable items for physics laboratory department of basic engineerin - purchase of physics laboratory equipment for basic engineering department, "digital balance weight 500g, accuracy 0.01g, top pan. tare function, caliberation- automatic external display type: led ", "joule’s calorimetercopper vessel, battery eliminator3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (02a), voltmeter (0-5v), thermometer (alcohol), stop clock ", "ic regulated battery eliminator ic regulated, input: 230v ac; output: 0-12v dc in steps of 2v; capacity: 1a or 2a. ", "galvanometer moving coil type, 30-0-30 scale, unbranded with bhel specification-sensitivity 0.143mm/v ", "voltmeter dc voltmeter; range 0–10 v, analog ", "ammeter dc (0 - 2 amp) ", "parallelogram apparatus parallelogram law of forces apparatus fitted with stand ", "decade resistance box resistance box 12 month warranty (dial type) -manganin coil- 2 dials ", sonometer apparatus sonometer with meter scale attached along with knife edge, tuning forks set 256, 384, 512 ranges, hammer, slotted weight - 500 gm each to a total of 3 kg. brass wire (5 m) , travelling microscope branded travelling microscope 0200 mm horizontal and 0-150 mm vertical measurement, potentiometer it features a 1-meter to 10-meter constantan/manganin wire stretched on a wooden or sunmica baseboard with a millimeter scale. it includes 4mm brass terminals, a pencil jockey for contact, wire options (10 wires), and a typical resistance range of 10-20 ohms, ideal for high-precision voltage measurements, viscosity apparatus • stoke's apparatus with metre scale attached and long cylindrical glass jar, glass beads small size (1 box), screw gauge (0-15 mm, "rheostat high-grade ceramic tube, oxidized resistance wire, 0.5a5a, range 10ω–100ω. ", deflection magnetometer apparatus • to deflection magnetometer apparatus with compass box and two short bar magnets, "solar cell kit the apparatus consist of variable dc power supply, led, solar cell and two multimeters (or an ammeter and a voltmeter). a variable dc power supply of 05v. light source is provided by led. the illumination intensity of the led can be controlled ", wheatstone bridge kit ujt series arm: four decade dials in steps of thousands, hundreds, tens, & units of ohm's. ratio arm: the ratio arm of the bridge is capable of selecting multiplying factor of 0.001, 0.01, 0.1, 1, 10, 100, 1000 for resistance measurements. two press keys are provided, one marked b is for battery & one marked g is for galvanometer one toggle switch is provided for internal battery a sensitive galvanometer is provided in the bridge, ohm's law verification kit battery eliminator-3a, (2,4,6,8,10,12 v), tubular rheostat 20-3.3a, one way plug key, analog type dc ammeter (0-2a), voltmeter (0-5v), standard resistance coil of 1, 2 ohm (2-set) wound on a wooden bobbin, "torsional pendulum torsional pendulum metallic disc, symmetrical masses and pendulum stand, steel wire ", compound bar pendulum one meter long iron strip well painted with holes at a distance of every 5 cm and also with pair of brackets and a heavy base table top stand with stop clock, "meter bridge type: 1 m length, with uniform wire (resistance wire) material: constantan or manganin (low temperature coefficient) scale: 0–100 cm, engraved or printed base: wooden or metal, rigid, non-conductive support joints / terminals: brass or copper, fixed for connections 2. galvanometer type: analog, moving coil or digital (for null detection) range: sensitive to detect microampere currents internal resistance: high, typically ~100 ω or as specified 5. cells / power supply type: leclanché cells (1.5 v each) or dc power supply number: 2–4 cells in series (or supply ~3–6 v) "
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