I hate to admit age wise I've got a brand new pair of XR-205's. About that same time Radio Electronics Magazine did an article on the SWTPC Function Generator offered as a kit and I ended up buying it instead of building one from scratch at the time. It served to purpose with all my Don Lancaster books I had at the time. 👍
The very first chip I ever used was the similar functioned ICL8038. It was cool that the datasheet provided a complete schematic of the internals of the chip. I also blew mine up and had to order another one (back in the early 80's when you had to mail a check to DigiKey and wait a couple of weeks for stuff to show up.
Fond memories the 8038 predecesor was in one of my earliest designs in a 1977 day job I had. A training school for process control instrumentation clients whose instruments were all changing over from pnuematic to electronic. So they could get up to speed on 'electrical' concepts they connected the FG up to a scope and opamps.
Both ICs ICL8038 and XR2206 was excellent chip at the time, and at that time "accidents" too with these chips while working even they were very resillient
Oh, it's just a flesh wound! None of the magic smoke escaped! Looks like you just activated the superimposed ripple hidden easter egg function in the chip.
@@IMSAIGuy Sorry for your loss ! I just bought one off ebay for £8.50p simply to mess around with and I gonna be real careful !!....great 'Chip of the Day'...cheers.
The cost of these Chinese function generator kits is nothing short of amazing. While they are OK for the electronics experimenter and students, they must be made aware that there are many fake chips out there. I recall one YT showing a fake XR2206 which worked fine using a 9 volt battery but produced an unstable waveform using 12 volts. Over 40 years ago, I built an XR2206 function generator from a kit for our biomed engineering use. Even added an extra capacitor for additional range. A few years back, I bought a M328 tester for less than $15, complete with the “shell” (they don’t call it a box or case, but call it a “shell”, translation issue I suppose). After I saw your video #1508 on the DSO-TC3, I bought one to play with. For the low cost getting a function generator, M-Tester and albeit low bandwidth O-scope in one instrument. They didn’t have gadgets like that when I was an electronics student, well over 50 years ago. I like that little jumper board you use to power the breadboard rails. Looks better than the resistor leads I use and end up losing all the time.
Have you seen or built the function generator kit with the ILC8038? This uses the. ILC7660A charge pump ic chip? This chip uses a single positive voltage and outputs the same input voltage only negative. Thoughts?
Seems like somewhere you talk about the chinese fake clone ? They have this generator they sell, I have one, four knobs on it, but it doesn't seem to be able to give me a voltage controlled sweep ? I needed a sweep of a small audio spectrum, say 300 to 3000 for a tester. I think I can do it with the xr2206 but not this one (with the little ramp generator connected)
@@kamelk8027 Unfortunately no, The MAX038 (which I used 12 years ago) to build my first RF Sweep Generator (up to 30 MHz) with FM (and AM) modulation was discontinued according to Maxim 'cause the IC foundry they used stopped making the band gap process the chip needed. I found some samples on eBay (about 10 USD each).
jingle beels jingle bells. jingle all the way! merry Christmas! it's a Clone, full of mallwear!! Merry Christmas! good luck! yup! looks real handy! play ball !
So it’s not synthesized I assume. I was then hoping for low distortion output, but yet it says 2.0%. Therefore excitement was destroyed, like your chip 🙂
Last part reminds me how I killed THREE IC's in one week by messing up the supply wires, one of those was a LM324 I bought on the same day I destroyed it :(((
If you think that your 'genuine' XR-2206 is real, get it working on 9 volts, then increase past 13 volts and note the waveform. Real ones work on 10-26 volts.
I hate to admit age wise I've got a brand new pair of XR-205's. About that same time Radio Electronics Magazine did an article on the SWTPC Function Generator offered as a kit and I ended up buying it instead of building one from scratch at the time. It served to purpose with all my Don Lancaster books I had at the time. 👍
I think I will do a video on the 8038 in the future. I had not heard of the SWTPC generator.
The very first chip I ever used was the similar functioned ICL8038. It was cool that the datasheet provided a complete schematic of the internals of the chip. I also blew mine up and had to order another one (back in the early 80's when you had to mail a check to DigiKey and wait a couple of weeks for stuff to show up.
Fond memories the 8038 predecesor was in one of my earliest designs in a 1977 day job I had. A training school for process control instrumentation clients whose instruments were all changing over from pnuematic to electronic. So they could get up to speed on 'electrical' concepts they connected the FG up to a scope and opamps.
lol thank you for the demonstration, RIP MAX038
I imagine that an order of 10,000 would cause them to drag their masks out of storage and make more.
Both ICs ICL8038 and XR2206 was excellent chip at the time, and at that time "accidents" too with these chips while working even they were very resillient
RIP MAX038 🕯
So it's now a totally unique distortion generator chip. 😀👍
And now IMSAI Guy, in your best Alicia Keys singing voice: "That triangle waveform is on FIRE!"
Oh, it's just a flesh wound! None of the magic smoke escaped! Looks like you just activated the superimposed ripple hidden easter egg function in the chip.
that's right, let's go with that
This is an Ex-Max038. ⚰
it is no more
It is deceased.
@@IMSAIGuy 👍
@@andymouse 🧀
@@IMSAIGuy Sorry for your loss ! I just bought one off ebay for £8.50p simply to mess around with and I gonna be real careful !!....great 'Chip of the Day'...cheers.
the 8038 was the original function generator. The MAX038 is a faster version of that 8038.
Ever hear of a CD4047B? It's a pretty cool alternative to a 555 IC.
The cost of these Chinese function generator kits is nothing short of amazing. While they are OK for the electronics experimenter and students, they must be made aware that there are many fake chips out there. I recall one YT showing a fake XR2206 which worked fine using a 9 volt battery but produced an unstable waveform using 12 volts. Over 40 years ago, I built an XR2206 function generator from a kit for our biomed engineering use. Even added an extra capacitor for additional range. A few years back, I bought a M328 tester for less than $15, complete with the “shell” (they don’t call it a box or case, but call it a “shell”, translation issue I suppose). After I saw your video #1508 on the DSO-TC3, I bought one to play with. For the low cost getting a function generator, M-Tester and albeit low bandwidth O-scope in one instrument. They didn’t have gadgets like that when I was an electronics student, well over 50 years ago. I like that little jumper board you use to power the breadboard rails. Looks better than the resistor leads I use and end up losing all the time.
Because it still worked, but had noise, I wondered if you damaged a cap, or something else, not the chip???
Chip of the not quite a whole day. 😢
Have you seen or built the function generator kit with the ILC8038? This uses the. ILC7660A charge pump ic chip? This chip uses a single positive voltage and outputs the same input voltage only negative. Thoughts?
I have 2 of those kits but they are not that great. Fun little soldering project tho. I quickly switched over to a uni-t UTG932-e 2 channel.
C2 is not the oscillator cap, it's a decoupling cap...
Those breadboards are scary. Give me a real breadboard and some nails.
Seems like somewhere you talk about the chinese fake clone ? They have this generator they sell, I have one, four knobs on it, but it doesn't seem to be able to give me a voltage controlled sweep ? I needed a sweep of a small audio spectrum, say 300 to 3000 for a tester. I think I can do it with the xr2206 but not this one (with the little ramp generator connected)
Hello Sir, there is another alternative but controlled using a microcontroller "AD9833"
yes but it's a DDS not an full analog circuit that you can tune easily with a simple pot
@@yveslesage8525 yes I know, it it controlled using the SPI communications protocol, do you know an alternative chip with analog control?
@@kamelk8027 Unfortunately no, The MAX038 (which I used 12 years ago) to build my first RF Sweep Generator (up to 30 MHz) with FM (and AM) modulation was discontinued according to Maxim 'cause the IC foundry they used stopped making the band gap process the chip needed. I found some samples on eBay (about 10 USD each).
Well at least you didn't kill it completely. It still outputted the waveform but with a lot of noise/distortion.
The reason the XR-2206 is still so common is that Exar didn't EOL them until 2011.
wow, guess they kept getting orders
🤣 If I was doing videos, they would all end up this way!
Turning it off and on again doesn't always work😪.
Rip, u need to use different
cable colours on the breadboard +5 red , gnd. Black, -5 blue or green that would have saved u a chip
The problem wasn't I connected it to the wrong voltage, I connected the voltage to the wrong pin. Good idea but would not have saved me.
They are expensive too.
jingle beels jingle bells. jingle all the way! merry Christmas! it's a Clone, full of mallwear!! Merry Christmas! good luck! yup! looks real handy! play ball !
So it’s not synthesized I assume. I was then hoping for low distortion output, but yet it says 2.0%. Therefore excitement was destroyed, like your chip 🙂
DDS is why these sorts of chips were obsoleted.
The operation was successful but the patient died.
240V systems are not always safer, try Thailand, some standard wiring there is truly terrifying.
Last part reminds me how I killed THREE IC's in one week by messing up the supply wires, one of those was a LM324 I bought on the same day I destroyed it :(((
nice
Looks like AliExpress vendors may have them…if they’re the real thing or a good copy…
Do you want another one? I have a MAX038 that's never been powered.
thanks for the offer, but it lasted long enough for the video. I have no real plans for it
For a 25 year old specimen, the printing looked awfully new.
It's not like it's from the early days of ICs. Printing tech was pretty advanced by the late 90's
@@JaenEngineering usually, that bright white print yellows over time.
Wow! A triangle wave on the triangle wave generator.
now I don't feel so bad for destroying my ic's the same way 😅
If you think that your 'genuine' XR-2206 is real, get it working on 9 volts, then increase past 13 volts and note the waveform. Real ones work on 10-26 volts.
The xr2206 are fakes now. Another RUclipsr cover this. They don't meet the datasheet specificions.
Most 2206 and 8038 are clone(fake) today. Still okay for small DIY project but not 100 % on specs...