Latest electromechanical level indicator Tenders | Government electromechanical level indicator Tenders

State Government

CTN :39898587

16 May, 2025 NA

Guntur - Andhra Pradesh

Tender For corrigendum : procurement and supply of medical equipment for up gradation of pg seats in existing medical colleges in andhra pradesh (2 years rate contract) - coagulation and dissection electrode, instruments for laparoscopic, pyloromyotomy laparoscopic, instrument set metzenbaum, scissors micro mosquito, forceps palpation probes, telescope 5mm 30 degrees, telescope 10mm 30 degrees, trocars hd pediatric, colonoscopy system ebus-endo, bronchial ultra sound sleep lab level -ii, circumcision instruments- adult, circumcision instruments-, pediatric cystoscope , pediatric liithotripter, mono polar single stem turp, nephroscope - pediatric, oiu instruments (optical internal, urethrotomy) urethrotomes-, pediatric urethrotomes-adult, vac-machine with disposabled, vasectomy instruments, high speed drill in operation theatre, micro laryngoscopy, set rigid, esophagoscopy set rigid pediatric, bronchoscopy set simulators for ear,, nose surgeries sinus, endoscopy set oae, ent head light with led, stroboscope/ high speed camera, digital spectrophtometer(10, & 50 mm) digital flame, photometer pole climbing, apparatus mammalian heart, perfusion assambly autopsy examination, instruments autopsy examination, table bone cutting, oscillating saw tissue bath, 4 channel emg/ncv/ep, system polysomnography, video sleep study system (psg), carotid doppler, intra operative, doppler intra operative neuro, monitoring guided neuro, navigation system for cranial and spinal, applications cavitron ultrasonic, surgical aspirator (cusa), high speed electrical;, craniotomy/neuro drill system, operative microscope-neuro, stereotactic system spine endoscopy, neurosurgery instrument set, neuro-micro surgical instruments

corporations/Associations/Others

CTN :40196629

08 May, 2025 NA

Basti - Uttar Pradesh

Tender For supply of stationary and maintenance of computers other requirement in dy cao office basti zone.basti - hp laserjet toner cartage riffling, printer drum change, keyboard, optical mouse replacement (simlar), optical mouse replacement (simlar), printer maintenance, ups services, cpu services, file cover ( simlar), record file cover (simlar), plastic file cover, index file (simlar), file cadac difference size, register size 20x30 cm 40 sheet, register size 20x30 80 sheet, paper a4 size, ( simlar), green paper a4 size, legel size paper, paper t-pin, gum, stamp pad, scale steel, dot pen,, gel pen packet, reynold trimax pen or simlar pen, pencil, rubber, pencil sharpner pieces, notice board 2*3 feet (with door lock), writing desk stand for table, incumbency board with plastic letters (2.5*3feet), paper weight, marker, calculator (casio,citizen,oepat), envelope(small, medium), envelope(big) a4 size & above, stapler (small), stapler (medium), stapler (large), stapler pin(all size), highlighter, register(500 page), register(250 page), tape difference size, sticky note pad difference size, bell, box file, note pad, basta file, punching machine, pen stand, paper flag sticky difference size, tag, correction fluid, paper folder, staionary scissors, staionary knife, waste buckets, paper trays, pen drive (hp sandisk)16gb, paper folding machine, usb hub, pushpin, paper clip difference size, spiral binding machine, battery cell, binder clips difference size, punching machine kangaro dp 800, tape dispenser, ism+ dh mkfy;ksa ds nvkbz dk dk;z

CTN :40171940

08 May, 2025 3.97 Lacs

Kalady - Kerala

Tender For chemicals (2) equipments/ instruments/ apparatus (3) glasswares and (4) consumables - chemicals, acetone l. r 2.5 l, acetophenone l. r 500 ml, alpha naphthol l. r 100 g, aluminium sulphate l. r 500g, aluminum chloride l. r 500g, ammonia l. r 2.5 l, ammonium acetate l. r 500g, ammonium borate l. r 250g, ammonium carbonate l. r 500g, ammonium chloride l. r 500g, ammonium fluoride l. r 250g, ammonium hydrogen phosphate l. r 500g, ammonium mercuric thiocyanate l. r 25 g, ammonium nitrate l. r 500g, ammonium oxalate l. r 500g, ammonium persulphate 100g, ammonium sulphate l. r 500g, aniline l. r 500 ml, barium chloride l. r 500 g, benzaldehyde l. r 500 ml, benzoic acid l. r 500 g, benzophenone l. r 500 g, benzoyl chloride l. r 500 ml, beta naphthol l. r 250 g, biphenyl l. r 100 g, boric acid l. r 500 g, borsches reagent 125ml, bromine water 500 ml, cadmium carbonate l. r 100g, cadmium chloride l. r 100g, calcium carbonate l. r 500 g, calcium chloride (merck) 500 gm, calcium chloride fused l. r 500 g, chlorobenzene l. r 500 ml, chloroform 500 ml, chloroform l. r 2.5 l, cinnamic acid l. r 250 g, clove oil 100ml, cobalt chloride lr 50 g, copper chloride l. r 500 g, copper sulphate l. r 500 g, di - sodium hydrogen orthophosphate l. r 500 g, diethyl ether l. r 2.5 l, dimethyl glyoxime l. r 100 gm, edta l. r 500 g, eriochrome black t l. r 25 g, ethyl acetate l. r 2.5 l, ethyl benzoate l. r 500 ml, fehlings solution no.2 500 ml, ferric alum l. r 500 g, ferric chloride l. r 250 g, ferrous sulphate l. r 500 g, formalin 5l, glacial acetic acid l. r 2.5 l, glucosel. r 500 g, glycerol 250ml, hydrochloric acid l. r 2.5 l, hydrogen peroxide100 vol (30%) 500 ml, hydroxyl amine hydrochloride l. r 100g, iron sulphide sticks 1 kg, lampsol 250 ml, lead acetate l. r 500g, lead dioxide l. r 250 g, lead nitrate l. r 500g, lemon grass oil 100ml, magnesium nitrate l. r 500 g, magnesium sulphate l. r 500g, manganese acetate l. r 500g, manganese dioxide l. r 500 g, mercuric chloride l. r 100 g, metallic sodium 100 g, metanil yellow 25 g, methyl benzoate l. r 500 ml, mohrs salt l. r 500 g, molischs reagent 125 ml, n-phenyl anthranilic acid l. r 25g, naphthalene l. r 500 g, nitric acid l. r 2.5 l, nitrobenzene l. r 500 ml, oleic acid 500ml, olive oil 1 l, oxalic acid l. r 500 g, petroleum ether 60-80 c. l.r 2.5 l, phenol l. r 500 ml, phenophthalein indicator 125 ml, phenyl hydrazine hydrochloride l. r 100 g, phthalic acid l. r 500 g, potassium hydroxide flakes l. r 500g, potassium iodide l. r 500 g, potassium permanganate l. r 500 g, potassium sodium tartrate l.r 250 g, potassium sulphate a r 500 g, resorcinol l. r 100 g, salicylic acid l. r 500 g, schiffs reagent 125 ml, silicagel (100-200 mesh) (for column chromatography) 500 g, silver nitrate (n/50) l. r 500 ml, silver nitrate solution 0.5814% w/v 125ml, sodium acetate l. r 500 g, sodium alginate 250 gm, sodium bicarbonate 5kg, sodium carbonate l. r 5 kg, sodium hydroxide flakes l. r 5 kg, sodium sulfate l. r 500gm, sodium thiosulphate l. r 500gm, stannous chloride l. r 100g, sulphuric acid l. r 2.5 l, sunflower oil 1 l, tannic acid 50g, triple sugar iron agar 100g, urea l. r 500 g, zinc dust l. r 500 g, zinc sulphate l. r 500g, equipments/instruments/apparatus, burette stand, clamp, colorimeter (digital photo electric colorimeter with 8 filters), diffraction elements single slit double slit mesh circular slit, digital multimeter (meco 603j) with all basic features for physics lab, haemocytometer, heavy base retort stand with boss head and clamp height 450 mm, induction cooktop, monocular microscope, pipette pump, semiconductor diode laser red with power supply (mains operated) 3mw and 625nm wavelength output on heavy base suitable to be mounted on optical bread board or free standing with leveling screw, spectrometer: brass spectrometer 7 inch scale dia least count =30 sec collimator and telescope with focus tilt and pitch adjustments table suitable to fit grating and prism, thermometer, weighing balance (

Central Government/Public Sector

CTN :40182378

19 May, 2025 NA

Bangalore - Karnataka

Tender For supply and installation of optical table with active vibration isolation

Central Government/Public Sector

CTN :38652124

07 May, 2025 NA

Visakhapatnam - Andhra Pradesh

Tender For corrigendum : procurement of integrated bridge system gmdss and uass system for fss - e-f band radar , i band radar , ddu for rlgs , magnetic compass , mawos , ais , dgps , bnwas , standalone- ecdis , optical bearing device , vdr , nav alarm panel , integrated captain console , back bone of ibs , mfc , mfd , mfd-bridgewings , transformer and ups , x-band radar combiner , fibre optic cable , cat 6 cable , chart table , ibs console , special tools , obs , class inspection , manuals and drawings , any items required , training -ibs- oem , training-ibs-hsl , service charges-ibs , extended warranty-ibs , mf hf radio , stacom-c , vhf-dsc , navtex receiver , sart , epirb , gmdss handheld vhf tx rx , inmarsat fb-500 , handheld walkie talkies , gmdss battery pack , itu publications , gmds console , srt survey , special tools -gmdss , obs-gmdss , class inspection - gmdss , manuals and drawings -gmdss , any other items required -gmdss , service charges -gmdss , training - gmdss , extended warranty-gmdss , uass , special tools - uass , obs-uass , any other items required -uass , class inspection -uass , service charges -uass , training -uass , extended warranty-uass , 1x2x0.75 sq.mm , 2x2x0.75 sq.mm , 3x2x0.75 sq.mm , 4x2x0.75 sq.mm , 2x1.5sq.mm , any other special cables , combiner , mfds- indoor , mfds- outdoor , pous

Central Government/Public Sector

CTN :40171401

20 May, 2025 NA

Pune - Maharashtra

Tender For supply of optical components -. high power laser , low noise laser driver module , detectors ,micro-positioning stage , beam splitter , polarizing beam splitter (quantity 02) , vibration isolation table (non-magnetic) , lens

Central Government/Public Sector

CTN :40160913

12 May, 2025 2.06 Lacs

Dakshina Kannada - Karnataka

Tender For auction for sale of unserviceable/ obsolete items - desktop computers (thinkcentre lenovo), barcode scanner, slip printer (epson), steel cupboard (almirah), steel cupboard (almirah) without glass, steel cupboard (almirah) with 4 adjustable shelves, steel cupboard (almirah) with glass, steel racks 5 shelves, steel racks 5 shelves, steel cupboard (almirah) without glass, computer chairs, computer chairs, periodical display racks, library sign board(steel), xerox machine, desktop computers (i-ball, ibm) 2 cpu + 12 monitor, fan, library chairs(wooden), computer tables, desktop computers (hp)(cpu), ups bis 1000/24v (hykon), p.s.g water hammer apparatus., p.s.g centrifugal pump set different speed from 900 to 1300 rpm size: 2 x2 discharge, 750 rpm with 5 to 8hp variable speed a.c motor, 3phase 400/440v, 5cy, be/self priming centrifugal pump 3stage coupled with 3phase electric motor., 2hp centrifugal pump, (beacon mono block) model: 3dm 2., 7.5 hp centrifugal pump, (beacon mono block) model: 3dm 3., pump, almonard 15 pedestal fan, almonard 15 pedestal fan, almonard 18 heavy duty pedestal fan, hp 3ph tool grinder, a. direct shear apparatus, hand operated ( aim 103 ) 1 no.b. shear box assembly, 60x60x25mm 1 no.c. two halves of direct shear box 1 no.loading u bracket 1 no., wall notice board. ( size 72 x48 ), a). sieves shakers motorized, rotap as a circular motion combined with periodic tapping action, accommodate 7 sieves suitable for operation on 220v 50hz single phase 1 no.b). time switch 0to60 minutes for use with the sieve shaker 1 no, tri-axial apparatus with three consolidation unit and accessories, consolidation machine, 20kg/cm. in 3 inch sample bench mounting type., 2.0 ton cap. split air conditioner vertis (ac), lenova think centre 2.33 ghz, tower, intel core i7, 870 , 64 bit, 8 gb ram, 1 tb hdd, dvd rw, 19" tft-wide, optical scroll., hp compaq 8100 elite cmt, (plan fund)tower intel core i5, 3.20 ghz, 2 gb ram, 320 gb hdd, dvdrw, 17 tft, optical scroll, dell optiplex 9010 (plan fund), desktop computers (intel core (r) i7-3770, 3.4 ghz, 64 bit , 500 gb hdd, 8 gb ram), hp laser jet 1010 printer, chair / rotatable/ metal, chair wooden bata type, cathode ray oscilloscope, centrifuge, diamond cut-off wheel, workstation, function generator, grinder / polisher, hot air oven, multi meter, multi meter, printer and scanner for computer, printer and scanner for computer, printer and scanner for computer, overhead projector and automatic slide projector, un-interrupted power supply, un-interrupted power supply, ultrasonic bath, vacuum coating unit, water cooler & refrigerator, charging and discharging of capacitor., fans, stirrer, telephone set, voltage stabilizer, water purifier aqua guard, computer system, computer system, computer system, computer system (without monitor), computer system (without monitor), discuss, pole vault poles, pole vault trough, pole vault uprights, starting gun, weight with hurdles, weed cutter, chess clock, cricket helmet, bull worker, tummy trimmer, medicine balls, table tennis table, small size squat belt, adjust dumbbell rod, abdomen shaper, dell computer, hp computer, digital multifunction xerox machnine, hp k3q76pc computer, revolving chair (contact project hbcis adj (b type armed), desktop computer

State Government

CTN :39973024

07 May, 2025 NA

Multi City - Andhra Pradesh

Tender For corrigendum : procurement and supply of surgical , mucus suckers penguin,open flexible composite mesh device is a sterile partially absorbable skirted mesh device designed for the repair of open ventral hernias,ambu bag (silicon) pediatric,ambu bag (silicon) adult,absorbable surgical suture usp sterilized surgical needle suture size 6 0 (box of 12 foils),endotracheal tube uncuffed disposable 3mm,endotracheal tube uncuffed disposable 5mm,endotracheal tube uncuffed disposable 4mm,endotracheal tube uncuffed disposable 4.5mm,endotracheal tube uncuffed disposable 3.5mm,endotracheal tube uncuffed disposable 2mm,endotracheal tube uncuffed disposable 2.5mm,tracheostomy speaking valve,tourniquet adult thighs,elastic crepe bandage 6 inch,elastic crepe bandage 4 inch,abdominal drain kit 32 fg,abdominal drain kit 28 fg,abdominal drain kit 24 fg,intracatheter sterile disposable g 22 with wings and port,disposable syringe with needle 2cc 24 guage,disposable syringe with needle 5cc 23 guage,intracatheter sterile disposable g 20 with wings and port,intracatheter sterile disposable g 18 with wings and port,closed wound suction drain no.12,closed wound suction drain no.16,intracatheter sterile disposable g 24 with wings and port,disposable syringe with needle sterile 5cc 24 guage,oxygen nasal prongs (adult),oxygen nasal prongs (pediatric),tracheostomy tubes cuffed 7.5,mucus sucker sterile disposable 20 ml capacity,anaesthesia circuits (paediatric ventilato circuits),adhesive plaster woven fabric (size 5cm x 10mts),adhesive plaster woven fabric (size 10cms x 10mts),bp cuff size paediatric,barburs thread size no 20,intestinal occlusion clamps size 8 inch,vaccum extractor for baby,vicryl suture double arm 7/0,laproscopic port closure needle,percutaneous tracheostomy tubes size 4,p d catheters (peritonial dialysis catheters),cellulose for haemostasis (size 7.6cm x 10.2 cm)(box of 24 foils),gigglys saw wire overall length 12inch,paper plaster size 3inch(box of 4),paper plaster size 2inch(box of 6),paper plaster size 1inch(box of 12),corrugated silastic drain needs description,polyamide with loop size 1 (pack of 12 foils),blood transfusion set,fixed envil hemorrhoid stapler kit,elisa printer roll 57x20mm,surgeons mask,surgeons caps,disposable hudson s mask adult,triple layer surgical mask,endotracheal tube dia 8mm,endotracheal tube dia 9mm,endotracheal tube dia 8.5mm,endotracheal tube dia 7mm,endotracheal tube dia 7.5mm,endotracheal tube dia 6mm,endotracheal tube dia 6.5mm,endotracheal tube dia 5.5mm,optical view trocar (laparoscopy) 5mm,ad syringes 1ml,stethoscope,naso pharyngeal airways 8.0 mm,naso pharyngeal airways 7.0 mm,naso pharyngeal airways 6.0 mm,naso pharyngeal airways 5.0 mm,naso pharyngeal airways 4.0 mm,insulin inj. syringe 30 gauge fixed needle with 1 cc (40 iu ),non absorbable black monofilament polyamide sterile surgical suture no10 0(suture code 3717),naso pharyngeal airways 3.0,bandage pop (size 15cmx2.7mt),bandage pop (size 10cmx2.7mt),proline suture double arm 10/0,absorbable braided violet polyglactin 910 sterile surgical suture 6/0 (suture code 2670),chromic cat gut sterile surgical suture 1/0 (suture code 4254) (box of 12 foils),chromic cat gut sterile surgical suture 1(suture code 4259) (box of 12 foils),non absorbable blue monofilament polypropylene sterile surgical suture no.1 (suture code 843)(box of 12 foils),chromic cat gut sterile surgical suture 2 0 (suture code 4241) (box of 12 foils),absorbable braided violet pga (polyglycolic acid) sterile surgical suture 1/0(suture code 2338),absorbable braided violet pga sterile surgical suture 2 0(suture code 2317),retinal bond 240,vitrectomy cutters,zesisphaco tubing sets,zesisphaco sleeves,triple lumen with antibiotic impregnented antifungal,poliglecaprone 25 size 3 0,trial boxes,temephos 50 percentage ec,synthetic pyrethroids water dispersible powder(wdp)/wet table powder,red rubber urinary catheter,disposable perilaryngeal airways,pyrethrum extract 2 percentage,tracheostomy t

CTN :40145323

19 May, 2025 NA

Jhabua - Madhya Pradesh

Tender For supply installation and commissioning of physics lab at item wise on turnkey basis at govt new model college jhabua 457661 - supply installation of physics lab equipment on turnkey basis, battery charger 2 to 12 volt., ballistic galvanometer with lamp and scale arrangement, spectrometer prism (crown/flint glass), spectrometer 6" 17 ", 30 sec, optical bench with riders double bar, optical bench with riders double bar heavy, inertia table, complete apparatus to verify law of parallel and perpendicular axes for moment of inertia, compund pendulum/bar pendulum, reading telescope, bending of beam apparatus to determine youngs modulus, cantilever to determine youngs modulus, horizontal torisonalpendulamappratus, jaeger apparatlrs to deternrine the surface tension, apparatus to determine the surface tension, apparatus to determine the viscosity of fluid using poiseuiles method, callendor and barnes apparatus to determine the value of mechanical equivalent of heat, measurement of low resistance by carey, potentiometer, lee purpose to determine the hear conductivity of bad conductor of different geometry, apparatus to verify newtons law of cooling, searl apparatus to determine the coefficient of thermal conductivity, sodiurn vapour lamp, transformer for sodium vapour lamp, mercury lamp, transformer of mercury lamp, biprism, complete apparatus to determine the resolving power of a telescope, biquartz are half shade polarimeter, newtons ring apparatus cornplete with travelling microscope power supply and sodium level, electroscope or electrometer, audio fiequency generator, cro dual trace 30 megahertz single tress l0megahertz, i.jse of vibration magnetometer to study a field apparatus, tangent galvanometer, apparatus to study resonance curve for lcr circuit, apparatus for measurement of capacitance and inductance, apparatus to determine the value of plancks constant, complete apparatus to determine e/m using thomson method, complete apparatus to determine e/m by milikons method, apparatus to study the absorption spectra of iodine vapour completes with white light source power supply grating and spectrometer, apparatus to draw bh curve of ferromagnetic material with the help of cro, half wave and full wave rectifier apparatus with built-in power supply, transistor characteristics apparatus with built in power supply and metres, apparatus to study characteristic of tunnel diode, apparatus to study hysteresis curve of transformer core, apparatus to study specific resistance and energy gap of a semiconductor, apparatus to study transistorized regulated power supply, apparatus to study rc coupled amplifier with built-in power supply, zener diode characteristics apparatus with built-in power supply, apparatus to study charging and discharging of a capacitor, complete setup to find the wavelength of sodium light, study of lissajous figure trainer, barton apparatus, digital oscilloscope, adjustable height stands, capillary tube packets of different radii, electrical laboratory kettle with varying voltages, piatinum resistance thermometer, soldering station, desoldering tool, thermocouple apparatus, jfet apparatus to study characteristic curve, hall probe apparatus, plane transmission grating, brewster law apparatus, beam divergence apparatus of helium neon laser, diode laser, holographic diffraction grating, michelson interferometer, logic gates apparatus (or, and not, nand, nor, xor), standard tool box, connecting lead wire for electronic apparatus, flywheel

CTN :39901115

05 May, 2025 2.00 Crore

Delhi - Delhi

Tender For corrigendum : procurement of equipment, instruments, machinery, tools etc. related to laboratories and workshops of electronics & telecommunication engg., engineering physics, engineering mechanics of mirik government polytechnic, mirik, dist - "spherometer , (screw pitch 0.05 mm and lc 0.005 mm)", "concave mirror , (focal length 20 cm)", "convex mirror, (focal length 20 cm)", "concave surface , (focal length 20 cm diameter 50 mm)", "hook's law apparatus , (consisting of 30 cm long mirror scale,, spring, slotted weights with hanger and, pointer, complete on heavy tripod stand)", "mercury , (distilled liquid mercury, grade std.-biotech grade)", "flywheel apparatus , (thickness: 4.4 cm diameter :20 cm)", cantilever (length 100 cm, hook at one end, c clamp), light weight hanger (metal slotted weight mechanics physics experiment equipment set with hook with weight of each mass of the order of 50gm or 100 gm), "inverse square law apparatus (optical bench, photocell housed with, red and black sockets, lamp house with lamps, dc microammeter)", stopwatch (digital stopwatch with ms count), high resistance box (resistance box plug with 1 to 10 k ohm resistance), "winch crab single purchase with weight, [experiment set up winch crab single purchase- fitted with heavy cast iron wall brackets the grooved wheel is of 25 cm diameter and gears are machine cut. string, weight box with pan. ]", "winch crab double purchase without weight, [experiment set up winch crab single purchase- fitted with heavy cast iron wall brackets the grooved wheel is of 25 cm diameter and gears are machine cut. ]", "worm and worm wheel single without weight , [experiment set up consisting of machine cut worm gear of 25 cm diameter, carrying a metal drum on 12 cm diameter, and machine cut worm on steel spindle carrying a 12 cm, complete with effort pulley, string with pan.]", "worm and worm wheel double without weight , [experiment set up consisting of machine cut worm gear of 25 cm diameter, carrying a metal drum on 12 cm diameter, and machine cut worm on steel spindle carrying a 12 cm, complete with effort pulley, string with pan.]", "wheel & axle simple without weight, [standard setup for lab.]", "simple screw jack with weight, [experiment set up screw jack ( weights)all metallic construction accurately machine cut screw with a pitch of 5 mm carrying a double fanged turn table of about 20 cm diameter. fitted on a heavy cast iron base and complete with two adjustable pulleys, cord and hook. weights are included.]", ", combined inclined plane & friction slide apparatus iron base & with weight, [standard setup for lab.]", "parallel forces apparatus, [experiment set up simple supported best type supported at its end. for verification of condition of equilibrium of parallel forces, law of lever & forces on beam etc. consisting of two compression thrust type 10 kg tubular spring balances fixed on wooden polished board, a wooden beam with steel back plate. complete with two strups, hooks & two 10kg weights. ]", "to verify lamis theorem , [gravesand apparatusboard: wooden with metal base, pulley: z-pullies (2 nos), with adjustable distance, weight set: 5x50 g (3 sets). ]", "simple jib crane apparatus iron stand with weight, [experiment set up with consisting of a tubular compression balance, pivoted about an axis fitted to the base. the tie chain has an adjustable angle bracket and fitted with a 10kg extension balance. completion wooden base with 1.2 meter jib. with weights. ]", "mini drafter, t square, protractor, set squares, compass, divider, [made out of wood. to be used in chalk board]", "model of geometric constriction (solid cube, solid primed, cylinder, cone, hexagon, tetrahedron ), [made out of wood. to be used in chalk board]", "amplitude modulation and demodulation trainer kit, [message signal:100 hz to 2.8 khz, carrier signal 28 khz to 108 khz,modulation : balanced modulator, amplifier : op amp based, demodulation : diode detector &

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