APO69

modified 2 years ago

741-OP doing many things - Part 1

671

08:21:50

Target:
Beginners and people who don't know how to use an operational. I refer to μA741 because it was the most popular in the '80, thanks to its bipolar technology and low cost.

Left-top to left-bottom 
- Amplifier x2, inverter amplifier x2, mixer

Right-top to right-bottom 
- Sawtooth oscillator, comparator, square oscillator

... Wait some seconds to see square wave

published 6 years ago

hurz

6 years ago

yes it was very popular in the time it all starts with OpAmps. But today i would say its really not upto date and there are more popular ones, and maybe even cheaper. At least you get much better/performante ones for a much lower price. Propular i see today LM324 or LM358 or TL082 but 741 i have to search long to find one in my boxes.

APO69

6 years ago

Yes, you are right... I am 49 years old today and I'm speaking from 30 years ago... 😀

hurz

6 years ago

👍

Robert_Kidd

6 years ago

The LM324, LM358 and TL082 are also long in the tooth.

hurz

6 years ago

popular today, do you understand?

Robert_Kidd

6 years ago

Of course I do! Making the point that all these are far from new devices.

hurz

6 years ago

new devices cant be that popular like the common known ones. Do you understand?

Robert_Kidd

6 years ago

I understand you’re an awkward idiot.

Robert_Kidd

6 years ago

New devices can be popular or most popular.

Robert_Kidd

6 years ago

Because something is “common known” doesn’t make it popular. Understand?

hurz

6 years ago

@APO69, dont worry, you have to talk silly to @robbi_kiddi, cuz hes handicaped and very slow. He also tells anybody they are noobs and there are only 20mA LEDs available, if you do not follow him he will put you on a list and makes it to his lifetask to bitching you over and over. Hes a bored and poor boy. @robbi_kiddi, then you still dont know what a popular OpAmp is? hmmm. Take your time.

Robert_Kidd

6 years ago

@APO69, happy for you to research and find out who’s lying here.

hurz

6 years ago

make facts robbi, we are waiting for your OpAmp popular list, guess we will wait forever. Instead of being negative and bitching, be contructive. We will agree on your list, cuz nobody would like to be a bitching victim a lifetime of robbi.

APO69

6 years ago

😀 this reminds me when I was young... Now I'm getting fun.

hurz

6 years ago

right, but we are still waiting for Mr Bitching, his popular list seems to be quite unpopular to search long for items on it 😵

APO69

6 years ago

Yes, I'd like to know it too🤔

Robert_Kidd

6 years ago

As usual hurz you behave like the idiot you are. If you think I’m going to play along with you - no go!

APO69

6 years ago

😀 I'm joking

hurz

6 years ago

Subtile, you have said my list is shit. Just subtile. Now you have the chance to be constructive and show us your list but as usual you run away, nothing behind. You are a charlatan like Lenny. No, you are a bitching charlatan.

APO69

6 years ago

Be water...

APO69

6 years ago

How old are you? If you are less of 25 I can understand...

hurz

6 years ago

BTW, robbi who started that game/play?

hurz

6 years ago

nobody knows, he does change it as it fits the task, sometimes he says 14 then hes 37

APO69

6 years ago

Robert_Kidd? Are you there?

Robert_Kidd

6 years ago

I am now, for a short while.

hurz

6 years ago

You still searching for a popular list of OpAmps and its hard to find soooooooooooooo popular OpAmps? Lets see, bitching boy

Robert_Kidd

6 years ago

You really need to learn the English language. I simply point out that even the pianos you specify aren’t that new and you blow it out of all proportion since you must start an argument. You really are a joke.

Robert_Kidd

6 years ago

*opamps

hurz

6 years ago

and again you run away. Weakling. Next time start your brain before bitching

Robert_Kidd

6 years ago

Your English comprehension is bad. Understand before you use.

hurz

6 years ago

baby @robbi_kiddi your list please

Robert_Kidd

6 years ago

Read & understand before you make silly comments.

kiani

6 years ago

Robert_kidd is a spammmmmmmmmmmmmm

kiani

6 years ago

Nonsense,, only nonsense, from Troll laenzul. Only nonsense,, total nonsense,, circuits, nonsense,,,, descriptions, nonsense,,, accusations, nonsense,,,, alligations, nonsense.

kiani

6 years ago

Robbert_troll is a virus spammmmmmmmmmmmmm

Robert_Kidd

6 years ago

Ah, your master asked you for support. Here boy!

BillyT

6 years ago

Kiani, or is that mini me?

Robert_Kidd

6 years ago

@BillyT, I always find your input interesting and informative. Now I find it humorous too. 👍

BillyT

6 years ago

I am tired of all this unnecessary bullying and put downs and those whom don't have original thoughts of their own.

hurz

6 years ago

Right, im also very tired, but the bitching against me continues. So robbi_kiddi, where is your original thought about a popular list of OpAmps? You just jumped on this thread for bitching. Thanks Bitch.

APO69

6 years ago

Ooohh, So this all is for my circuit? I'm very happy 😍😍

Robert_Kidd

6 years ago

@BillyT, I concur.

APO69

6 years ago

Let's go to build, please. Can any one make an automatic EBC transistor detector?. I'm working on it...

hurz

6 years ago

That would be nice to have EBC pin algiment and also PNP NPN detection plus hFe. That all together is probably a job for a little computer.

APO69

6 years ago

Yes but I will try to get it for EC

hurz

6 years ago

ok, lets see what you have so far

APO69

6 years ago

For now it is only on paper but I promise to show here whatever I have.

hurz

6 years ago

im patient 😁 meanwhile robbi might have original ideas, LOL

APO69

6 years ago

😁😁 I don't want to apologize...

Robert_Kidd

6 years ago

APO69, looking forward to seeing your ideas.

hurz

6 years ago

for your ideas we have to wait forever, except its bitching that what we can have now. After bitching that much, now baby kissing, pfui baaahhhh, dont kiss the baby

lenzrulz

6 years ago

More idiocy...😡

Robert_Kidd

6 years ago

@hurz, you are a feeble minded idiot. Senility creeping in I guess.

lenzrulz

6 years ago

I will remove every comment I’ve ever made on all of your circuits if you do not post comments on any of my circuits.

hurz

6 years ago

@robbi_kiddi, looking forward to seeing your ideas about a popular OpAmp list, or shut the fuck up, foolmouth

Robert_Kidd

6 years ago

Oxygen cut off.

hurz

6 years ago

LM_robbi_kiddi you are also long to long in the tooth, but you are probably ECs most popular bitching idiot.

lenzrulz

6 years ago

And you have the infamous reputation of being EC's most defamatory, condescending idiot that has ever slithered around peoples circuit's.

hurz

6 years ago

You both have that talent to jump on threads you were not called, but trollish useless comments which are defamatory and condescending was always your special talent Lenny. Robbi is just not constructive and turns later into foolmouth. Trolls