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XR2206 High Precision Function Signal Generator DIY Kit Sine/Triangle/Square Output 1Hz-1MHz Adjustable Frequency Amplitude

XR2206 High Precision Function Signal Generator DIY Kit Sine/Triangle/Square Output 1Hz-1MHz Adjustable Frequency Amplitude

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This signal generator DIY kit is professional product to generate sine/triangle/square wave. It's a DIY kit for you to weld and install.

High resolution, can generate sine/triangle/square waveforms.
Frequency range: 1Hz-1MHz.
Adjustable frequency and amplitude.
Frequency adjustment features coarse tuning and fine tuning.
Wide power supply range, use 9-12V external power or 9V battery(NOT Included).
All are through hole components, easy for installation.

Voltage Supply: 9-12V DC Input
Waveforms: Square, Sine & Triangle
Impedance: 600 Ohm + 10%
Frequency: 1Hz-1MHz
Amplitude: 0-3V at 9V DC Input
Distortion: Less than 1% (at 1KHz)
Flatness: +0.05dB 1Hz - 100kHz
Amplitude: 8V (no load) at 9V DC Input
Rise Time: Less than 50ns (at 1KHz)
Fall Time: Less than 30ns (at 1KHz)
Symmetry: Less than 5% (at 1KHz)
Amplitude: 0-3V at 9V DC Input
Linearity: Less than 1% (up to 100KHz) 10mA
Package Size: Approx. 12 * 8 * 2cm / 4.72 * 3.15 * 0.8in
Package Weight: 69g / 2.46oz

Package List:
1 * Signal Generator DIY Kit
1 * User Manual(English)

Customer Questions & Answers

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1 votes

Assembled as instructed. Square wave works fine, but triangle and sine do not. They produce non square waves but def not sine or triangle.

  • Not sure what is used, if anything, for output conditioning circuit but have you considered loading the output? try a 600-ohm 1/2-watt resistor across the output at @10% amplitude... these things are typically spec'd at 600-ohm impedance

    By Fixer on July 14, 2017

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0 votes

can this be used for milliamp

  • This is a function-signal generator. I don't know in what regard you are referring to as "milliamp" (current).

    By Tessa on February 4, 2018

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0 votes

Can this be used to test and align an am tube radio? if not, please suggest one that will. thanks!

  • This device as a signal generator, a frequency counter and an oscilliscope are the devices needed to set up an AM radio. Remember, the IF or intermediate frequency is 455KC. Look for the set up process on youtube.com

    By Barbara Bequette on December 28, 2017

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0 votes

What is the polarity of the power input jack?

  • The data sheet that came with mine, under 4.3 indicates "center positive / barrel negative". It also specifies 9-12 volts. It all worked for me.

    By Amazon Customer on November 16, 2017

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0 votes

Can I reach our frequency 7.5 with this machine .will it give me a chart of all frequency it will produce

  • It is very vague as far as instructions or a chart. I haven't actually used it much yet. It's an easy build though and for the money it's not bad at all

    By Thomas on November 11, 2017

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0 votes

What kind of output jack is that blue thing? I am unfamiliar with it. It looks to be a banana jack, but the spacing seems too narrow.

  • Its a terminal strip with screws that screw down on the wires

    By Dale on November 9, 2017

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0 votes

R2 (50k pot), r7 (50k pot), and r8 (100k pot). i paid no attention to the pots when i soldered them. which one is which, i didn't see any markings

  • There should be a very small stamp on the side of the pots to tell you which one is right. I believe I did the same thing but it works anyway maybe not quite right in the fine adjustment but I set up a scope and it looks alright.

    By Danny S. on September 25, 2017

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0 votes

Would this work well as a modular synthesizer oscillator?

  • Exactly what I would want to do with it (I don't have one). Its output level is a little low (especially the sine and triangle) and it's always above ground (positive), because it is configured here for single supply operation. If you know what you're doing, it could >probably< be converted to dual supply operation. T… see more Exactly what I would want to do with it (I don't have one). Its output level is a little low (especially the sine and triangle) and it's always above ground (positive), because it is configured here for single supply operation. If you know what you're doing, it could >probably< be converted to dual supply operation. The XR2206 IC itself can be run on a +/- 12V supply, but since we don't have a schematic for this product, it's hard to say what else might need modification. Get the XR2206 datasheet and search for "split" to see recommendations for running on a split supply. (You don't need a frequency counter, but a scope is always helpful.) see less

    By Ed Poe on November 11, 2017

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0 votes

Would this work well as a modular synthesizer oscillator?

  • It works well for my testing. It does not have a saw wave, so if that doesn't bother you, the only thing left, is if the frequency range fits your needs.

    By Scott D. Moon on September 17, 2017

0 votes

Anyone know the ic used in this kit?

  • It is the XR-2206 Available at most electronics companies that sell parts. It is a signal function generator.

    By Danny S. on September 10, 2017


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  • By Pierre Violent

    September 5, 2017

    Même sans notice, on se débrouille facilement pour placer les composants, la sérigraphie du PCB est très lisible et sans ambiguïté. Tous les composants étaient présents à l'appel dans le sac, et à l'arrivée, ça marche du premier coup. Ne pas oublier de monter les deux CI avant de monter l'écran comme je l'ai fait, mais ça se démonte très facilement. Seule petite difficulté, il faut fournir du -12V/+12V/+5V, et je n'ai pas une telle alimentation sous la main... Donc j'ai récupéré une alim d'un vieux PC, puisque les alimentations des cartes ATM fournissent ces voltages, avec les couleurs standard: Noir=GND, Rouge=+5V, Jaune=+12V, Bleu=-12V, et relier le fil vert à la masse pour mettre l'alimentation sous tension, et ça marche! (source:[...]. Du coup, l'alimentation est dix fois plus volumineuse que le générateur de signaux :-)

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  • By k***d

    July 28, 2016

    Relativ simpel zusammen zu bauen, ich war nach ca. 30 min fertig und das Gerät hat auf Anhieb funktioniert. Solide und kompaktes Design, das Gehäuse sollte auch einiges Aushalten. Entgegen meiner Erwartung bildet das Gerät doch relativ schöne Sinus-Funktionen ab - sogar bis knapp 1.3MHz (s. Bild). Jedoch verlaufen sich Dreieck und Rechteck Funktionen ab ca. 250KHz in etwas recht schwammig rundes, was für mich persönlich allerdings kein Problem darstellt. Das Gerät ist seinen Preis definitiv Wert und ich kann es nur weiter empfehlen.

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  • By A. R. MacKay

    December 12, 2017

    Hmm! I have not connected to a scope but used a DVM with frequency meter and found a couple of other things in addition to the other reviewers comments: 1/. amplitude is wired wrong way round clock wise decreases level? 2/. C2 and C3 have to be laid flat to get the case to close 3/. the fine coarse pots do not work very well set coarse to min and fine seems to give the full range as well I was a bit horrified that there was no buffer amp on the output like the LM386 and tl084 maybe the XP website holds more info on this device not much there I am afraid mechanically it took a bit of time to realise the screw and nut were the spacer and needed the 2 caps layed flat to fit even then the socket is quite tall in comparrison with a turned pin. I had to snip the tips of the ic legs to get the case to close completely. it is not a digitally synthesised sine wave hence the other comments about the sine not looking particularly sine wave. It is what it is and for 8 GBP is quite fun to put together.

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  • By Maurice S

    November 28, 2017

    Very good value-for money, build it yourself, kit of parts. Took about half an hour to assemble and solder the electronics. There are five short screws with nuts which are too short to do anything with. Four longer screws hold it all together by cutting their thread into the pre-drilled holes. Getting the protective paper off the pre-shaped plastic case parts is not easy but the plastic material is excellent. Connected up using a 10 volt power source and it worked first time. All three wave shapes are good once you get the hang of the function of the three beautiful mechanical action, smooth as silk, potentiometers. The amplitude control operates in reverse but not a big deal. Also, turning up the amplitude too much causes the sine wave to clip and saturate at the top. Finished item measures (7.2 x 5.5 x 3.5) cm. An all-round great buy.

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  • By Kevin Scott

    November 23, 2017

    I have been rather impressed with this, very small unit and works well. Also good fun to assemble without taking too long. Some things worth noting are as follows: - The amplitude control controls the sine and triangle output, the square wave output is fixed in amplitude. - On my unit, the lowest amplitude is around 0.5 volts (on open load). The output impedance would appear to be 600 ohms from the XR-2206 datasheet. - Although the case comes with 8 M3 bolts and nuts, the bolts that are used to hold the top and bottom together dont need nuts as the lower part of the box has smaller holes and the bolts are intended to self tap into those.

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  • By Mr. A. Clark

    November 22, 2017

    Excellent, low cost, function generator. It's based on a Voltage Controlled Oscillator (VCO) chip which is usually used on electronic instruments. Although the kit is fairly easy to put together, I wouldn't recommend it if you haven't made electronics kits before because the instructions are not very explicit. For example, you need to know the resistor colour coding. On mine, the screws to hold the circuit board to the box were too short and I had to use different ones. it is very sensitive to the voltage of the power supply. Under 9v and the wave gets distorted but over 12v, even slightly, affects frequency stability. Most plug in power units give much more than their rated voltage when lightly loaded (and this is a light load). My first try, an old power plug rated at 9v, gave poor results because it was giving 13.5v. I ended up using a 7.5v power plug which gave, when powering this product, 11v. A 9v battery should work fine.

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  • By Lucio

    October 18, 2017

    La busta di plastica arrivatami conteneva tutte le parti necessarie. Utilizzando un piccolo saldatore il Kit è stato facile da assemblare, è bastato fare attenzione alla polarità degli elettrolitici e al verso di inserzione del circuito integrato sullo zoccolo. L'unico neo sono state le vitine che fissano la scheda alla base della "scatola" trasparente, erano troppo corte e non si riusciva a serrare i dadi. Poco male perché nel solito cassetto dei miracoli ho trovato quattro vitine da 3 Ma un po' più lunghe. Alimentato a nove volt tramite una pila, il generatore ha subito funzionato e tramite il mini Oscilloscopio DSO138 della JYE ho potuto vedere e verificare le varie forme d'onda. L'attrezzo è utile come oscillatore audio per testare amplificatori e stadi di bassa frequenza, ma anche per allineare le medie frequenze dei ricevitori radio AM che lavorano a 455 KHz.

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  • By Uri

    June 22, 2017

    This was an easy build until I got to the case. The bottom of the case was designed to a flat board. Even with sever clipping there screws for the board did not work properly. I got it together after a fashion only because I wanted the labels on the top cover showing were to put the jumpers. If you didn't already have some knowledge of electronics knowing the short (negative) leg on the polar capacitors should go ground which was marked by some lines on the board. I used and Arduino with the IDE on a Raspberry Pi to get the square wave in the picture. Use the example sketch for using an analog pin to measure voltage.

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  • By Jim D

    June 13, 2017

    Neat little Function Generator, purchased next to my Oscilloscope to help learn a bit about its operation. Overall, the kit is complete but the casing is a little bit delicate (I managed to ham-fistedly over tighten a corner and break the plastic). I reassembled it a few times to find an optimal fit and a little super glue did wonders. The actual board and back plate could use some standoffs to account for the variation of height on the underside once the components are soldered but it works. Fun little project, the power supply noise affects the signal pretty adversely. Running from a small lithium battery seems much more stable when looking closely at the waveform.

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  • By kabelsalat

    March 2, 2017

    Für kleines Geld kann man natürlich nicht die Leistung eines Laborgerätes erwarten aber für meine Zwecke tut er genau das was er soll. Mit einer Eingangsspannung von 15 V beaufschlagt kann der Regler für die Amplitude auch voll aufgedreht werden ohne das die Spitzen der Sinusamplitude oben abflachen, bei mir blieb das Signal dabei o.k. er brachte dann am Oszi gute 7 V Hub pro Sinushalbwelle und der Generator zog dabei keine 23 mA , die den dortigen IC auch völlig kalt ließen. Was das Ding allerdings überhaupt nicht ab kann ist eine falsch gepolte Betriebsspannung, nach wenigen Sekunden roch es nach heißem IC, noch etwas länger und der Schaltkreis wäre mir durchgebraten oder hätte sich samt Fassung selbst ausgelötet. Die Platine hat auf beiden Seiten Leiterbahnen und etliches muss auch komplett durch gelötet werden, gerade bei der IC Fassung ist hier eine feine Lötspitze gefragt. Ich habe an der Fassung eine SMD Lötnadel und 0,5er Lot benutzt und obwohl ich seit guten 20 Jahren nichts derartiges mehr gemacht habe funktionierte das Teil sofort.

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  • By David

    February 23, 2017

    I bought this to generate various frequencies of square waves. So, I can't vouch for the precision of the triangle or sine wave generator. Overall it was a fun build with only one slight flaw. The barrel power supply doesn't quite fit with the case. It doesn't prevent it from being put together but I had to leave out the 4 board securing screws as they weren't long enough to be threaded when the barrel was seated in the case slot. But becasue of the other components (dials, barrel itself) the board stays secure in the case. The instructions were clearly not written by a native English speaker but they were clear enough to follow if you are familiar with the components used in the build.

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  • By F. Greenlee

    February 20, 2017

    Great little kit. The XR2206 chip has been around for a long time and is well proven. I think I built my first hand made signal generator with it back in the late 70's, though it wasn't nearly this compact. The triangle wave is squared (multiplied by itself) in order to form the sine wave, which results in a sine wave with about 0.5% harmonic distortion, which is high but still useful for many applications. The kit could have used some instruction for the case. I put the plastic case parts under water for a while in order to get the protection paper off without scratching the plastic. Have a magnifier handy to read the numbers on the caps, especially if your eyes are as old as mine!.

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  • By D.Young

    February 20, 2017

    Generates a well-defined square waves, triangle waves, and sine waves up to 1 MHZ as described. You can generate signals up to 5 MHZ, but they look very rough. It has DC bias in the output, but is relatively easy to remove. It's an easy to build, it takes a little under 30 minutes. Unfortunately, I was hoping there was instructions on how it works, but can't dock off points for a loose assumption. If you notice distortion in the output, your amplitude is too high. It will clip if you don't adjust the amplitude potentiometer. I have the output (AC coupled which removes the bias) in my review. I forgot to take a picture of the square wave, but I found the rise time being around 200ns with little ringing. I should note that I used a 9 volt battery with a connector soldered directly to the board instead of using the jack. I haven't checked the quality of the case, but I'm not planning to put it on anytime soon. I'm not a professional with electronics, so I'm not completely sure if the accuracy is sufficient for testing equipment. However, it looks fantastic to me.

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  • By ComputerGeek

    February 17, 2017

    Works as expected. A bit tricky to screw in the short screws that link the bottom plate to the board. Keep the power connector unsoldered until you are really sure what height it has to be soldered at (not fully touching the board as to be above the side margin but not too high. You will also have to trim to the bone the soldering side (otherwise the screws are too short), which means you really need good quality soldering that goes all the way through the hole. Frequencies controlled by the jumper are not really as inscribed on the box but will do from below 1 HZ to more than 1Mhz.

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  • By Trumar

    February 8, 2017

    Very good product I like this a lot. That said this is the first signal generator that I have used and it might not be as good in other's eyes. The case is okay, but is hard to fit on unless you, when building it, make sure to cut the leads of the components off very close to the surface. Otherwise, like in my kit, it will be a pain to close. I broke a part of my clear plastic case, but it was my fault, I was just being stupid. The frequencies are very nice and I mainly use the sine generator, but it is nice to have the option of triangle and square waves. It is smaller than you might think as well.

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  • By Danny A.

    February 3, 2017

    This was a simple and fun project. It had been a few years since I had last soldered and had some more difficult projects I wanted to do so I had decided to purchase this as a warm up. It was pretty straight forward, and in the end everything worked. Definitely a good project for a beginner. It did seem to have a bit of a lack of instruction in general which might bother some beginners. But its also a good way to get your brain working on these types of things if you dont know exactly what to do. Its not too difficult to figure out though. Just make sure you know what a ground symbol looks like, and you know the differences between the positive and negative legs on some of the parts. Also if you are colorblind like me, the resistor selection will probably drive you nuts for a while. But that is to be expected if your colorblind and trying to do electronic work. Its practically impossible for me to read the color codes on those tiny resistors. But if you can make out the patterns on the gold and orange bands and compare them with patterns on google images you can probably figure it out. Good luck on the reds and browns though lol. It took a lot of time and critical decision making to make sure I had the right ones, but everything worked the first time so I applaud myself.

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  • By michael

    January 29, 2017

    Der Zusammenbau war problemlos. In die untere Gehäuseplatte waren an den Ecken nur sternförmige Löcher gelasert. Die Schraube sollte sich wohl das Gewinde selbst schneiden. Sicherheitshalber, damit da nichts platzt, habe ich M2,5 Gewinde reingeschnitten. An den Oszillografen angeschlossen, 9V Netzteil dazu und folgendes festgestellt: - der Ausgangspegel des Rechtecksignals ist nicht regelbar konstant bei 8Vss. Die Rechteckform ist gut. - Sinus ist auch ok bis ca. 4,5 V Ausgangspegel. Ab 400kHz nehmen die Verzerrungen sichtbar zu. - der minimale Sinuspegel liegt bei ca. 500mV. Das Potentiometer steht dabei ungewohnt am rechten Anschlag. Für Messungen im NF- Bereich brauchbar, zumal, wenn man für den einmaligen Abgleich des selbst gebauten Verstärkers kein kleines Vermögen für Messmittel ausgeben will.

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  • By marius s.

    November 9, 2016

    In diesem Bausatz befinden sich alle benötigten Teile inkl. dem Gehäuse. Selbst für einen Löt-Laien wie mich war das Löten dank der beigelegten (englischen) Anleitung sehr schnell erledigt. Auch werden die Signale sauber generiert beim Betrieb mit einer 9V-Blockbatterie. Mehr als 12 Volt sollte nicht benutzt werden, sonst sind die Signale nicht mehr sauber. Nicht so toll finde ich das Gehäuse. Das Innenvolumen ist leider sehr knapp bemessen und wenn unter der Platine gröbere Stücke abstehen z.B. von den abgeknipsten Drähten passt die Platine nicht mit den beigelegten Schrauben in das Gehäuse bzw. dieses lässt sich nicht verschließen da die Schrauben dann zu kurz sind. Ich habe mir hier im Baumarkt längere zöllische Gewindeschrauben geholt. Wegen der einwandfreien Funktion und der guten Anleitung gibt es 4 Sterne, fünf Sterne wegen des Gehäuseproblems sind aber nicht drin.

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  • By rafael bachmann

    September 25, 2016

    Erstmal, die eigentliche Funktionalität ist ok. In der Anleitung ist nur der Schaltplan wirklich nützlich, die Texte enthalten Sätze wie '2,check the IC whether against, such as anti please timely correction' usw., was verwirrt und kein Englisch ist. Sämtliche Keramikkondensatoren hatten aufgedruckte Werte, die mit der Tabelle in der Anleitung übereinstimmen, aber die eigentlich gemessenen Kapazitäten waren 'way off'. Die Widerstände haben nur ungefähr gepasst. Vielleicht ist das auch ein Messfehler meinerseits, jedenfalls funktioniert das Teil. Für das Gehäuse steht nix in der Anleitung. Die Plattine muss meiner Meinung nach auf den 4 Muttern sitzen (als Abstandhalter) und die 4 langen Schrauben halten das Gehäuse dann zusammen. Ich musste das Gehäuse bearbeiten, um eine gute Passform zu erhalten. Zur Stromversorgung steht nur in der Anleitung, dass man nicht über 12V benutzen sollte - aber nichts über die Polarität des Steckers. Wenn man die Platine anschaut, sieht man dass die eine Verbindung vom DCin gleich zur Anode eines Elko's führt, woraus erkenntlich ist, dass der Stecker innen '+' braucht. Mit 9V funktioniert alles gut. Ich gebe 4 Sterne da die Bauteile ok und der Preis sehr niedrig ist.

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  • By stefan lennartz

    July 30, 2016

    Der Aufbau der Platine hat etwa eine dreiviertel Stunde gedauert. Der Generator funktioniert für diese Preisklasse besser als man erwarten kann. Leider ist der Einbau in das Gehäuse nochmal eine halbe Stunde gedauert, da die Positionierung der Energieversorgungsbuchse etwas frickelig ist. Die Signale sind bei etwa halber bis voller Amplitude verzerrt. Im bereich 65 kHz bis 1 MHz fällt die Amplitude mit steigender Frequenz ab. Von hoher Präzision wie in der Produktbeschreibung kann also nicht die Rede sein. Fazit: Der Bausatz ist mit Gehäuse fast vollständig, funktioniert soweit zufriedenstellend, der Aufbau der Platine war einfach, ein Gehäuse ist auch dabei. Ein Batterieclip sucht man im Kit vergebens, der Einbau ins Gehäuse war Fummelarbeit, die Präzision lässt noch Wünsche offen, daher nur 4 Sterne. 5 Pack 2.1 X 5.5mm Male DC-Stecker bis 9 V T Typ Batterie-Clip

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