Latest sine wave generator Tenders | Government sine wave generator Tenders

Central Government/Public Sector

CTN :45686495

01 Jul, 2026 NA

Dharwad - Karnataka

Tender For comprehensive warranty extension of transportation engineering lab equipment - 1. rolling thin film oven 2. constant temperature waterbath for marshal test with digital controller-(9 moulds)-(150 mm). 3. standard penetrometer for bitumen-automatic digital timer with geared height adjustment & dial gauge - astm d5 4. marshal stability testing machine-digital-4" & 6" dia-combined 5. stripping test apparatus-is 6241, aashto t283 6. ductility testing machine - (semi automatic model) -(10-100 mm/min speed) -(refrigerated)- 7. planetary mixer-for bituminous mix-digital-10 ltrs 8. sieve shaker-gyratory-for 20/30 & 45cm dia sieves with digital timer 9. buoyancy balance 10. bitumen extractor-motorised with variable speed with digital rpm indicator 11. ring and ball apparatus-(programmable) -(digital) -(astm d36) with accessories 12. hot air oven - digital-90x90x60 cm-250c-inner s.s. 13. rotary vacuum evaporator with motorized lift-flask capacity-50-5000 ml 14. automatic compactor for marshal test - (4" and 6" dia specimen)-(universal model)- 15. cleaveland flash point apparatus-with energy regulator 16. absolute and kinematic viscosity bath for 4 viscometers (astm d2171, astm d2170) at indian institute of technology

CTN :45562952

01 Jul, 2026 43.22 Lacs

West Tripura - Tripura

Tender For supplying, installation, testing and commissioning of equipments for electrical measurement, electrical workshop, electrical machine & power system laboratory at ttaadc polytechnic institute, khumulwng, west tripura for the project "improvement of infrastructure in ttaadc polytechnic institute, khumulwng, west tripura, district under higher education department” under the nec scheme. (2nd call) - supplying, installation, testing and commissioning of electrical measurement, electrical workshop, electrical machine & power system laboratory equipments/machineries of electrical engineering department at ttaadc polytechnic institute, khumulwng, west tripura under the nec scheme "improvement of infrastructure in ttaadc polytechnic institute, khumulwng, west tripura, district under higher education department." (2nd call), kelvin double bridge trainer kitthe instrument should have following features : easy illustration of kelvins bridge digital display (dpm) for null detection online product tutorialthe instrument should have following technical specifications :dc power supply : +5vknown resistance : r1=100k , 20k , 10k r3=1k , 200 , 100 dpm : 2vdimensions (mm) : 240 w x 345 d x 110 hunknown resistance : 0.3 , 0.4 , 0.8 mains supply : 230 v 10%, 50 hz, whetstone bridge trainer kitthe instrument should have following features :sample : constantan, nichromeprovided with dc power supply compact designeasy to operatethe instrument should have following technical specifications:dc power supply:5vgalvanometerdeflection:30 - 0 30resistance:80 unknown resistance type: variablerange:0 - 10k wire samples: -constantan: 1mnichrome:1mfuse:500mamains supply: 90 - 275v, 50hzdimensions (mm):w 345 x d 240 x h 110, experimentation with de sautys and schearing bridgethe instrument should have following features: - a complete set up with all necessary accessories inbuilt 1 khz sine wave generator with variable amplitude null detector with dpmtechnical specification: -sine wave generatorfrequency range:1khz 10%amplitude control output: up to 15vppfuse:500 ma, s/bdpm:200 mvunknown capacitor:0.1 f, 0.22 f, 0.47 fmains supply:230v ac, 10%, 50hzdimension (mm):w 345 x d 240 x h 110, experimentation with maxwells bridgethe instrument should have following features : illustration of both maxwells inductance bridge and maxwells inductance-capacitance bridge on a single board inbuilt 1 khz sine wave generator with variable amplitude null detector with dpmthe instrument should have following technical specifications :mains supply : 230 v 10%, 50 hzdc power supply : +12v, -12vsine wave generatorfixed frequency : 1khz 5%amplitude control range : upto 20vppunknown inductors : 10 mh, 20mh, 30 mh, 56 h, 24 h, 12 hdpm : 200mvunknown internal resistance : 470w, 10 , 20 , 30dimensions (mm) : w 240 x d 345 x h 110, measurement of three phase active & reactive power with single phase wattmeter technical specifications:analog meters: analog voltmeter, range : 300v analog ammeter, range : 2a analog wattmeter power supplies: operated on mains power 415v, 50hz +10%components are mounted on the panels are: capacitive load inbuilt inductive load inbuilt resistive load (external)salient features: three phase power light indicator for mains. front panel built with high class insulated bakelite sheet with sticker well printed circuits and symbols. mcb for short circuit protection connections are brought out through 4mm colored safety sockets. patch cords 4mm. the trainer is housed in metal cabinet. size of the trainer set 36 x 24 , power & power factor measurement by ct & pt in three phase circuittechnical specifications:power supplies: ac power supply 0-415v at 4a operated on mains power 415v, 50hz +10%digital meters: digital voltmeter digital ammeter , digital wattmeter (analog), digital power factor meter components are mounted on the panels are: 3 phase capacitive load (inbuilt) 3phase resistive load (external) 3phase inductive load (external) emergency stop

CTN :45465664

18 Jun, 2026 3.00 Lacs

Thanjavur - Tamil Nadu

Tender For supply of upgradation of laboratory equipment- tansche - upgradation of laboratory equipment, digital ic trainer kit: equipped with 16 high -visibility leds for monitoring experimental outputs and logic status indication. dedicated driver circuitry provided for reliable operation and protection of all 16 leds during experimentation. all 16 driver input lines are terminated through banana connectors for flexible and easy external interfacing. includes 16 spdt toggle switches for generating manual logic input conditions in digital electronics experiments. additional 16 leds provided to display the real-time status of individual switch operations. one terminal of each spdt switch is externally accessible through banana sockets for convenient circuit connections. built -in variable clock generator enables pulse generation for sequential and timing-based digital experiments. frequency adjustment provided through potentiometer and rotary switch combination for precise clock selection. clock output is terminated through banana connectors for quick integration with external circuits and trainer modules. features dual 7 -segment led display with 7447 decoder/driver ic for bcd to display conversion experiments. inputs of the 7447 drivers are terminated at banana connectors for direct digital logic inter-facing. includes solder less breadboard for rapid circuit prototyping and reusable experimental setup development., pam,pwm,ppm trainer kit:pam- ppm- pwm modulation and demodulation techniques, using natural and flat-top sampling. natural sample, sample and hold and flat-top outputs. selectable 2 different sampling pulse frequencies on board. on board sine wave generators. voice communication using dynamic microphone and speaker. -on board filters and amplifier. functional blocks indicated on board mimics. input- output and test points provided on board. built in dc power supply -fully documented operating manual -switch faults .pulse modulation techniques: (1) pulse amplitude modulation (2) pulse width modulation (3) pulse position modulation crystal frequency : 6.14mhz .sampling frequency : 16 khz, 32 khz .sine wave generator : 1 khz & 500 hz, amplitude (0-5) v. tolerance +5% . low pass filter : 4th order bw filter. cut off frequency 3.4 khz. voice communication : voice link using dynamic mic & speaker . ac amplifier : with adjustable gain control interconnections :uninsulated sockets. power:230v,50hz . accessories : manual , set of patch chords, microphone & speaker., electronics work bench:digital storage oscilloscope (dso) - 50mhz - 1no . 3mhz function generator (fg) 1no.dual output variable power supply (rps) (0-30v/2a) - 1no. fixed output power supply ( 12v, 500ma) ( 5v, 500ma) - 1no . digital multimeter 3.5 digit [hand held type] - 2nos 3.5 digit lcr meter [hand held type] - 1no. soldering & desoldering device - 1no., mosfet drain current and transfer characteristics trainer kit:circuit diagram in the front panel.biasing components provided test points are terminated at banana connector.input: 230v ac.housed in a closed cabinet.detailed experimental manual.2mm patch chords provided for inter connecting., frequency response of cs amplifier trainer kit:circuit diagram in the front panel.biasing components provided test points are terminated at banana connector.input: 230v ac.housed in a closed cabinet.detailed experimental manual. 2mm patch chords provided for inter connecting., frequency response of cascode amplifier trainer kit: circuit diagram in the front panel. biasing components provided test points are terminated at banana connector.input: 230v ac. housed in a closed cabinet. detailed experimental manual. 2mm patch chords provided for inter connecting., class a transformer coupled power amplifier trainer kit: circuit diagram in the front panel.biasing components provided test points are terminated at banana connector. input: 230v ac.housed in a closed cabinet.detailed experimental manual.2mm patch chords prov

CTN :45417262

10 Jun, 2026 NA

Guwahati - Assam

Tender For procurement of goods, equipment terrestrial lidar with integrated automatic total station 1" (arc seconds) angular accuracy , resistivity imaging system for 2d electrical resistivity survey , automatic weather station , thermal infrared camera , portable air quality monitoring system , walkie-talkie communication , flexural strength test of tiles , abrasion test of tiles , aggregate polishing , desiccator (vacuum) , motor (5hp, 3hp, 2hp, 1hp, 0.50 hp) , -accelerometer set of 5 with different frequencies , compressometer-extensometer for concrete specimen , concrete surface-mount strain gauge system , compaction factor apparatus , portable digital microscope system , portable density meter , axle pad weighing system , temperature controlled water bath , gyratory compactor for asphalt specimens , normal refrigerator , environmental climate chamber , contact angle meter , bitumen emulsion charge detection instrument , drainage and seepage tank (visualisation of seepage flow) , symons rain gauge , digital rain gage , rainfall event logger , digital evaporation recorder , eco sounder , universal water current meter with direction indicator , vibratory hammer , concrete specimen cutter , accelerated curing tank , compressor with nozzle , double distillation assembly , indian standard sieves (200 mm diameter) , indian standard sieves (300 mm diameter) , indian standard sieves (450 mm diameter) , sieve shaker mechanical tapping motion , oven , digital weighing balance (15 kg) , digital weighing balance (30 kg) , digital weighing balance (220 g) , cone penetration apparatus determines the liquid limit of soils , shrinkage limit apparatus , density bottle , compaction moulds (light and heavy both) , compaction hammer (light and heavy both) , loading frame mechanised for soil and material testing applications, including unconfined compression (uc), cbr, and similar tests-50kn universal frame. , loading frame manual , proving ring: 2kn, 10kn, 25kn, 50kn, 100kn. , dial gauge: 0.002x5mm, 0.01x25mm-3 nos each in 1 set. , pvc drum (barrel) , measuring cylinder (borosilicate) , measuring cylinder (borosilicate) , measuring cylinder (borosilicate) , measuring cylinder (borosilicate) , rubber glove , stop watch , spatula , glass plate , glass plate , glass plate , air tight container , air tight container , steel ruler , steel ruler , borosilicate beaker , borosilicate beaker , borosilicate beaker , measuring jar (plastic) , measuring jar (plastic) , non-return valve, air valve , m.s flange , lubricating oil , lead , spum yarn , water meter , pvc bend , pvc y branch , pvc dod bend , pvc pipe sloc , c.p piller tap , c.p waste coupling , pvc waste pipe , pvc connection flexible tube , ppr pipe fittings , pvc floor trap , pvc gully trap , pvc multi trap , pvc multi floor trap , white cement , pop (plaster of paris) , push cock , plastic water tank , water tank overflow alarm , butane/propane disposable cylinder , scaffolding pipes: , shuttering plywood sheets , plastic brick mould. 9"x4.5"x3" , mould and concrete spacers plastic i shaped dumbell paver mould 60mm , plastic zigzag paver mould , plastic cosmic paver block mould , pvc mold for cement cover block multi cover (20/25/40/50mm-42 kvt without hole) , pvc mold for cement cover block multi cover (20/25/40/50mm -25 kvt with hole) , ms h-beams: 100 100 length 1 m , ms h-beams: 100x100 length 2 m , ms h-beams: 100 100 length 3 m , ms h-beams: 150x150 length 1 m , tie rods: 2 m , tie rods: 3 m , formwork clamps/clips: , shuttering oil/release agent: , polythene sheets , adjustable column clamp , adjustable concrete beam formwork clamp , adjustable concrete beam formwork clamp , corner angles for formwork: , safety belts and harnesses: , flagging reflective tape: , scaffolding safety tags and tag holders , safety gloves , safety jacket , safety helmets , safety boots

CTN :45351358

04 Jun, 2026 NA

Pudukkottai - Tamil Nadu

Tender For supply of lab equipments - purchase of lab equipments, ask modulation and demodulation kitspecifications: message signal1: 8-bit variable data,amplitude 5v. message signal 2: debounced data, amplitude low (0) and high (5 v). message signal 3: fixed data 25 khz, 12.5 khz, 6.25 khz, 3.12 khz, amplitude 5 v. carrier signal: sine wave, frequency 200 khz, amplitude 5 v. modulator type: switching modulator using analog switch / transistor switching ic. demodulator: envelope detector and lpf. comparator: lm311 based. supply voltage (board): +12 v, +5 v dc. supply current: 100 ma minimum. input voltage: 230 v ac, 50 hz. interface connectors: 2 mm banana socket., fiber optic communication trainer kitspecifications:power supply: 230 v ac 10%, 50 hz mains operation. built-in regulated power supply. optical transmitters: led transmitter: 660 nm. optical receivers: phototransistor / pin photodiode receiver. built-in signal conditioning and amplifier circuits. audio power amplifier with speaker/headphone output. comparator / pulse shaping circuit for digital signal recovery. test points for cro observation and signal monitoring. fiber media: multimode plastic optical fiber (pof). fiber patch cords with connectors. signal sources: built-in sine wave generator. built-in square wave / digital pulse generator. voice signal input through built-in microphone/audio source. trainer features: separate transmitter and receiver sections. on-board test points for signal observation. led indicators for signal monitoring. fault simulation facility. compact tabletop modular design. circuit diagram printed on pcb. bandwidth: analog bandwidth: up to 350 khz. digital bandwidth: up to 2.5 mhz. controls: variable signal amplitude control. variable frequency control. optical intensity adjustment. standard accessories: patch cords and connectors. power cord. audio connecting cable. user manual.

CTN :45316200

09 Jun, 2026 NA

Krishnagiri - Tamil Nadu

Tender For purchase of digital and analog communication lab equipment(tansche) - digital and analog communication lab equipment(tansche), digital ic trainer kit:1. equipped with 16 high-visibility leds for monitoring experimental outputs and logic status indication. 2. dedicated driver circuitry provided for reliable operation and protection of all 16 leds during experimentation. 3. all 16 driver input lines are terminated through banana connectors for flexible and easy external interfacing. 4. includes 16 spdt toggle switches for generating manual logic input conditions in digital electronics experiments. 5. additional 16 leds provided to display the real-time status of individual switch operations. 6. one terminal of each spdt switch is externally accessible through banana sockets for convenient circuit connections. 7. built-in variable clock generator enables pulse generation for sequential and timing-based 8. digital experiments. 9. frequency adjustment provided through potentiometer and rotary switch combination for precise clock selection. 10. clock output is terminated through banana connectors for quick integration with external circuits and trainer modules. 11. features dual 7-segment led display with 7447 decoder/driver ic for bcd to display 12. conversion experiments. 13. inputs of the 7447 drivers are terminated at banana connectors for direct digital logic interfacing. 14. includes solderless breadboard for rapid circuit prototyping and reusable experimental setup development., amplitude modulation trainer kit:1) on board carrier and modulating signal generator with amplitude and frequency adjustable 2) carrier and modulating signals are provided in the unit with frequency variable. 3) in-built regulated power supply 4) on board envelope detector 5) schematic diagram provided in the front panel modulating signal frequency : (300hz-3 khz) amplitude : (0-5) v carrier signal carrier signal frequency : 10 khz - 50 khz amplitude : (0-15) v type of modulator : 1. ring modulator 2. transistor based modulator method of modulation : 1. under modulation 2. critical modulation 3. over modulation, fm trainer kit 1) on board sine wave generator 2) provision to study modulation & demodulation in the same unit 3) test points to study different waveforms 4) in-built audio power amplifier 5) mic pre amplifier 6) built-in power supply 7) sine wave generator : frequency - 100hz to 1.2 khz with amplitude adjustable, (0-5v) 8) fm modulator : direct fm 9) carrier frequency : 20 khz (low), 367 khz(high) 10) fm demodulator : pll detector, quadrature detector, foster seelay discriminator / phase discriminator, ratio detector are provided. 11) audio power amplifier : gain 100 12) mic pre amplifier : gain 20, ask, fsk, psk trainer kita s k modulation & demodulation trainer on board data generator circuit. auto / manual mode (data generation) external patching provision provided between the modulator and demodulator. built-in power supply. modulator and demodulator are separately provided. easy interconnections are made by patch cords. mode : auto / manual input data rate : 800hz to 2 khz any external ttl compatible sequence with frequency up to 2.1 khz. carrier frequency : 20 khz power supply ratings: 230v + 10%, 50hz. f s k modulation & demodulation trainer three types of i/p sources - manual input , square input , rs232 input fsk modulator with, mark frequency: 1070 hz space frequency: 1270 pll based fsk demodulator output provided through bs2 connector and serial port. built-in power supply. p s k modulation & demodulation trainer on board programmable data generator on board carrier generator mimic diagram in the front panel type of modulator : balance modulator type of demodulator : balance demodulator binary inputs - 8-bit data length 50 khz, clock carrier inputs frequency : 200 khz amplitude : 2 v pp level converter : unipolar to bipolar supply ratings ac input (230v, 10%, 50hz) dc output (+12v,-12v, +5v, gnd, pam, pwm, ppm trai

Central Government/Public Sector

CTN :44641395

08 Apr, 2026 NA

Raigad - Maharashtra

Tender For supply of lab equipment - "sieve shaker-gyratory-for 20/30 & 45cm dia sieves with digital timer, , sieve shaker carries upto 7 sieves of 450mm diameter in single adaptor. supplied without sieves or lidpan. detailed specification as follows:, calibration from nabl lab shall be included", "sieve shaker-gyratory-for 20 & 30cm dia sieves with digital timer-, sieve shaker carries upto 7 sieves of 200 / 300 mm diameter in single adaptor. supplied without sieves or lidpan. detailed specification as follows:, calibration from nabl lab shall be included", "sieve shaker-gyratory-for 20cm dia sieves with digital timer, sieve shaker carries upto 7 sieves of 200mm diameter in single adaptor. supplied without sieves or lidpan. detailed specification as follows:, calibration from nabl lab shall be included", "pavement core drilling machine with petrol engine - 5.5 hp and 100mm dia core drill bit, the machine is primarily intended to drill out core samples from the asphalt or concrete road, suitable for vertical drilling only. detailed specification as mention in following page. supplied with 100 mm dia x 450 mm / 400 mm core drill bit. ", "core drill bit 65 mm, 70 mm , 100mm and 150 mm dia x 450mm with barrel - v,, with portable pump / portable submersible pump", "core cutting machine - 150 mm dia core -with accessories , rock/stone/concrete cube or cylinder cutting and grinding machine, with 450mm dia diamond impregnated cutting wheel, suitable to cut up to 150mm depth. equipped with 2 hp three phase electric motor, starter. floor standing model. water tank of 25 ltr. below machine level.", "bitumen extractor - motorised with variable speed with digital rpm indicator, special model with ac motor and drive : this model facilitates precise speed control and vibration free smooth operation. speed variation up to 3600 rpm. complies with following international standards - astm d 2172, aashto t 58, t 164. , calibration from nabl lab shall be included", "buoyancy balance with electronic balance - 15 kg x 0.1 gm, for water absorption and specific gravity test of aggregates. with density basket, water tight cylinder and electronic balance of 15 kg x 0.1 gm sensitivity. the balance will be with under hook weighing arrangement and will be mounted on suitable table to facilitate the test. the water tight container will be mounted on a mechanical jack, which will facilitate the updown movement of the container for weight in air and water. as per en 12390-7, bs 1881:114, is:2386 (part iii) , calibration from nabl lab shall be included", "rebar locator - profometer pm8000, profometer pm8000 - portable concrete rebar locator - the latest generation 2023 product release by screening eagle switzerland, under its value brand proceq, is the most powerful & precise instrument for inspection of concrete for locating reinforcement bars, their position, spacing, cover & diameter of rebar, fully wireless designed for use in rough environments. profometer pm 8000 with i pad basic model", "reaction container - is 2386 (part vii),, as per is:2386 -part vii (fig.5), made of stainless steel, 50 to 75 ml. capacity, fitted with air tight cover.", "refractory furnace-9"" x 4"" x 4""-1200c,, light weight with ceramic wool insulation. the outer casing made of thick mild steel sheets painted attractively. heating chamber consist of grooved refractory bricks in which heating elements are inserted in coil form and are easily replaceable. temperature controlled by dual display microprocessor based digital temperature indicator cum controller with k type sensor. compensating cable etc.working on 230 v. max. temperature: 1200 c. & working temp.: 1150 c. detailed specification as follows:, calibration from nabl lab shall be included", "chloride meter for fresh concrete (germann instrument make), the chloride meter has the best performance to quickly and accurately measure the chloride ion concentration contained in raw concrete/aggregate. all equipment required

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Central Government/Public Sector

Central Government/Public Sector