Le migliori offerte per Power Monitor,Oscilloscope

Domandata da Vedamurthy il 2018-09-20 11:46:11

Hyenad No need calibration, it has been calibrated by professional instruments before leaving the factory.

2018-09-25 09:32:14 Utile

risposta (1)

Generatore di segnale ICL8038 Media / Bassa frequenza 10Hz-450KHz Generatore di onde triangolari / rettangolari / sinusoidali

8,60€ 9,31€

D: I need the circuit diagram for this board.

Domandata da Vedamurthy il 2019-08-29 08:27:10

wujiahui http://myosuploads3.banggood.com/products/20190829/20190829202312icl8038.pdf This is the chip's data sheet, we can only provide these.

2019-08-29 08:24:09 Utile

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Vedamurthy 02/02/2019

I am happy with the delivery time.Look,feel and finish is good.However the PCB is thin and there is some degree of warping.Some of the component values are not nearly perfect.Soldering the USB socket and lengthy pin headers was a bit frustrating.User Manual provided is very useful.The kit booted without any problem after final assembly.Performed ok when tested with a Function generator.However as the frequency is increased ,the distortion and jitters also increase(especially for square waves).Also, under certain frequencies the parameters are not displayed.When i checked the JYEtech website for guidelines, found that the kit i recieved is a fake.For the last 3 days,the kit is performing ok.Hope it works forever.

Originale JYETech DSO138 DIY Digital oscilloscopio Kit non assemblato SMD Saldato 13803K Versione

20,12€ 24,14€

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Vedamurthy 02/02/2019

I am happy with the delivery time.Look,feel and finish is good.Very neat and compact module board.I would recommend atleast waveform symbol markingS on the P2 jumper and indicators on all the potentiometers.And since this is a Waveform generator,a paper manual is a must with detailed description.Moving onto the operation,found that the performance is not upto the mark.I can see the sine,triangle and square waveform when coupled to an oscilloscope.However the sine waveshape is not that perfect.The Sine linear pot has some control in shaping the waveform,but not as expected. All the waveforms are non symmetrical and non alternating.The maximum frequency that can be generated is close to 250Khz.Peak to peak voltage for Sine and triangle is very small(between 3 - 4 volts).For square wave it goes upto 11volts.Within few hours of testing(under specified voltage and current rating) the smd transistor G1 got damaged.I had to replace that with 2N5551(TO-92).Overall i am not satisfied with this Module.

Generatore di segnale ICL8038 Media / Bassa frequenza 10Hz-450KHz Generatore di onde triangolari / rettangolari / sinusoidali

8,60€ 9,31€

0

Commento (1)

Vedamurthy 18/01/2019

I am happy with the delivery time.Look,feel and finish is good.Very compact and neat module board.i would recommend to have the Elect specs printed on the board.I feel the speed regulation is non proportional to the rotation of the Pot knob.

Controller di velocità PWM per motore CC da 3V a 35V, 5A, 90W, regolatore di velocità mini

3,72€ 8,38€

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Vedamurthy 16/01/2019

I am happy with the delivery time.Look,feel and finish is good.Color is also attractive.Dimensions exactly match the claim.Tubing thickness is quite thin.Hope it serves well on the job.

2m 29.5mm Piatto 18.5mm PVC Tubo Termoretraibile per la Batteria 18650 18500

6,45€ 7,45€

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Vedamurthy 16/01/2019

I am happy with the delivery time.Look,feel and finish is good.However the original dimensions measure 94mmX49mm(against the claim of 100mmX50mm).But i am impressed with the quality of copper tracks and neatly drilled/well positioned holes.Hope i dont face any problem soldering onto the copper tracks in future.

5pz 5X10cm Prototipo carta PCB per Piastra sperimentale in rame a singola faccia con 2-3-5 Foro Congiunto

6,74€ 6,05€

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Vedamurthy 16/01/2019

I am happy with the delivery time.Look,feel and finish is good.Plastic quality is ok.Hope the solder holds well onto the leads.

8 punte universali per adattatore di alimentazione AC DC 2 pin per tester di carica di alimentazione

12,29€ 13,97€

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Vedamurthy 16/01/2019

I am happy with the delivery time.Look,feel and finish is good.Well made out product.Dimensions exactly match the claim.Material quality seems to be good.Happy with this buy.

10 tipi di ago in acciaio inox Set circuito elettronico PCB foro passante strumento di riparazione saldatura dissaldante 80mm 0,7-1,3 mm

0,98€ 1,60€

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Vedamurthy 14/01/2019

I am happy with the delivery time.Look,feel and finish is very good.I am buying it for the second time.Hole Dimensions exactly match the claim.however outer dimensions(Diameter x Length) when measured are 13x24mm(against the claim of 14x25mm).But the overall finish and quality seems to be quite good.happy with this buy.

Accoppiatore albero rosso con giunto in lega di alluminio con esagono incassato strappo e accoppiatore motore viti Connettore

8,60€ 9,31€

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Vedamurthy 14/01/2019

I am happy with the delivery time.Look,feel and finish is very good.Dimensions exactly match the claim.Material quality seems to be good.For its size the bobbin feels quite strong.Very neatly finished product.

Bobine di filo macchina da cucire in plastica trasparente

0,42€

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Vedamurthy 14/01/2019

I am happy with the delivery time.Look,feel and finish is good.Dimensions exactly match the claim.Material quality seems to be good.Hope it works out well during the actual etching process.

Scheda PCB in fibra di vetro a singola faccia ricoperta di rame 70x100x1.5mm

6,42€ 7,45€

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Vedamurthy 14/01/2019

I am happy with the delivery time.Look,feel and finish is very good.End to end measured length is 149cm.The cable is actually encapsulated within a layer of what seems to be PVC.it has been neatly done.Hope its strength holds on to its aesthetic appearance.I am happy with this buy.

59 Pollici Cavo di sicurezza in filo d'acciaio Cavo in cavo leggero per bicicletta U-Lock Rope 49 fili

5,58€ 7,45€

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Controller di velocità PWM per motore CC da 3V a 35V, 5A, 90W, regolatore di velocità mini

3,72€ 8,38€

D: what is the Max current limit at 35volts?

Domandata da Vedamurthy il 2019-01-09 07:56:16

wujiahui Output current: 0-5A,the Max current maybe 5A.

2019-01-10 07:55:59 Utile

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Vedamurthy 05/10/2018

Under normal test seems to function well.The menu parameters can be varied as listed under the manual.The NTK sensor seems sensitive to temperature changes complimented by the display.User friendly paper documentation is suggested.

Geekcreit® W1209 DC 12V -50 a +110 Interruttore di controllo del sensore di temperatura Termostato Termometro

4,65€ 9,31€

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Vedamurthy 05/10/2018

Seems to be ok.Have not tested it yet.Hope it works well.

100Pz 10 Valori 102K-681K 2KV Kit di Condensatori ad Alta Tensione in Ceramica Assortimento Set 10 Pezzi per Ogni Valore

1,64€ 2,98€

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Vedamurthy 05/10/2018

Tested with couple of built in examples,and it seems to function well.Made an LED blink and fade.hope it works fine in future projects.Paper documentation is recommended.

Scheda principale di sviluppo USB Geekcreit per Arduino UNO R3 ATmega16U2 AVR Geekcreit®: prodotti che funzionano con le schede ufficiali di Arduino

14,99€ 21,42€

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Vedamurthy 05/10/2018

Nice small bearings.Dimensions are almost accurate on measurement.Bearing action seems to be quite smooth.Hope it can take small loads.

10pcs 5x14x5mm Cuscinetto a sfere a gola profonda schermato sigillato in acciaio 605zz

4,70€ 9,11€

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Vedamurthy 01/10/2018

Well machined item.Dimensions are pretty close to the listed value.Hope it can take considerable torque.

Giunto albero flessibile in alluminio 5 mm x 10 mm OD19 mm x L25 mm Accoppiatore motore passo-passo CNC Connettore

7,52€ 8,38€

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Vedamurthy 01/10/2018

Well machined block.However the dimensions measure 39.5mmX38.5mmX12mm.Hope there is no leak.

Blocco di raffreddamento ad acqua in alluminio 40x40x12mm per dissipatore di calore del radiatore della grafica della CPU

3,90€ 3,73€

0

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