Your tutorials seem to come at just the right time..five minutes ago I gave up on my amp circuit...couldn't get it right....this circuit looks way better than what I had...trying to get a 9.5 mm mic amped up to drive an 8 ohm speaker...

This video explains the push pull configuration of amplifiers the best way it can be explained. The experiment is terrific !

Thank you for this video, the compensating diods are very well explained in your comments as well. Best regards.

Great teaching and I could barely wait till you pulled the jumpers!

Brilliant! I've been looking for this schematic for weeks. Many thanks!

Really well put together.....easy to follow, nice visuals and slow clear concise voice...thank you very much.

Sir, You make very good videos and incredible good descripions too.Thank You

Superb, you made it very clear, and the presentation was excellent, as always, much appreciated, thank you.

Very well-detailed and Merry Christmas!

wow, very informative and great as always!

Many thanks for your video. What sort of transistor part numbers are normally suitable for such an amplifier circuit?

Thank you. Helps to understand the way you presented it.

Best teacher on the net! Thanks for sharing this! I think this is the problems i have at my poweramps, I have looked and measured, But I dident think about this!

I have once watched an audio circuit that uses magnetic type (center tapped trans) as push-pull's load. Static type has actually cross over as this video, courtesy of you.

Very well explained as usual.

Nagyon ügyes , értelmes és érthető videó ez tetszik! Greeting from Hungary ;)

thank you very much. One question/remark : When the top transistor is conducting more, the "resistance" of the bottom one is kind of increasing (as it is actually kind of "blocking"), this mean that the extra current that Top transistor generates is actually "directed" to the load as it cannot go down ? Is that correct ? Thx

awesome, learned about compensating diodes

Ok I can see that the compensating diodes are required for a smooth transition. But WHY and how do they fix the problem? Best Wishes n Blessings. Keith

Nicely done!

Sir, no one could have explained it any better than you. my respect to you. I thouroughly enjoy your videos. thank you.

Class AB amplifier, the best transistors is using npn 2n3055 & pnp MJ2955 😊 can power 50 watt 👍😁🔊🎶🎶🎶 hahaha

Very good explanation sir. Thanks.👍👍

YESS. Tank you for video. 👏👏👏

Thanks for this video. I tried building this but my results were barely audible. The transistors used were not exactly matching. They were 230 and 240 respectively. When I built the schematic on breadboard I used my phone as a sound source and a mono 8ohm speaker as the listening device.The circuit barely produced any sound being driven by my phone with the volume maxed out. Also, I removed the 100k resistor before the output and tried replacing with a potentiometer. It did nothing at all. The sound through the circuit was the same with the resistor to ground, without the resistor, and also the same with the pot. It didn't make any difference. Do you have any idea what I'm doing wrong? Thanks for your time.

Thank you for explaining. But shouldn't that 470 Ohm resistor at PNP transistor be connected between GND and collector?

Hi, I have a jukebox that uses a tube amp. For the life of me I can't get it to work. I am considering either sending it out for repair (EXPENSIVE) or replacing it with a mosfet amp. Just curious if you have an opinion of the pros and cons of doing this. Thanks, and as always love your vids.

Very well explain. Thunks

The ground is symbol on the negative lead is confusing to me. Is this a split-rail DC design or not?

Mr. McWhorter could you please tell me what the part numbers you used for the transistors and diodes. Thank You!

Thanks for this video! I needed this circuit. BTW: The powered breadboard brought back memories. Is it, by any chance, the old Heathkit model?

thank you so much for your help

Great tutorial! Question: Isnt the input supposed to be between the diodes?

How are the resistors calculated for both the base biasing and emitter side?

Great you video I like thank you

What if the wave is a square wave, will adding the diodes be necessary??

Brilliant!!!

A big question can push pull use to make a ac signal to drive mosfet

Thanks. its very usefull

Hi! I have some questions. Audio source has a + and a -. It sends signal from + to -. It's push type? And at audio amplifiers it's the same. It pushes the speaker. Push pull it's when + and - switch to - and + signal and back? To push and pull the speaker?

What software are you using to display the schematic and components?

Wouldn't the final circuit have the signal input between the diodes?

can I get a 50 watts amplifier at 12 volts without changing the voltage? (i mean without increasing the voltage at colector )

shouldn't the input be plugged between the two DIOD's ?

Does the gain of the transistors need to be the same?

awsome....but what is forward bias?

what would happen if the capacitor is placed between the two diodes

what is that software you are using for an oscilloscope??????

Can you explain how can the pnp conduct if both the load and the pnp collector are grounded ? If there's no voltage drop how can there be current ?

how did compensating diodes work?

I don't understand why 2 x serial Diods with same direction?

How are the values of the R and C are chosen?

are these different with class b and ab?

Thanks.

thanks a lot ...

Are the inputs and outputs referenced with respect to ground ( - )

Shouldn't the input be between the two diodes?

purpose of 470 ohm resistors ?

🙏

I see AA5 in my search results, I click.

please we need to find driving for rules of power amplifier

I know it is an old video... very well done, but I have a question, if you can reply will be very appreciated... Which is the purpose of the two 470ohm resistors on the emitters? Are they used to "control" the differences in any way ? Thank you

But Why do it that way??Why Push Pull Method??

I just got so confused, I can barely stand up. I need a shower for this. There were no diodes to begin with and therefore there were 2 bumps showing in the sine wave. Unless I did not hear that nor saw that correctly. Then to clear that bumps you showed 2 diodes to be installed in series along between the bases. I don't know if I saw and heard that right either. Then you showed in your bread board mentioning that you actually installed the diodes but shorted out... whatever that means. Why did you install it shorted out. Unless installing it in series means shorted out in the first place... but that is....confusing regardless... I don't know what to even say... here. So you end up showing that you are removing the diodes that you wanted to be there in the first place to remove the bumps. But only by removing it you smoothed out the sine wave. End up with no diode that you started in the first place that caused the bumps to be there. I AM LOST. AM I SO GONE IN THE HEAD OR WHAT THAT I SEE AND HEAR THINGS THAT DON'T EXIST. I DON'T SEE ANYBODY ELSE COMPLAINING HERE.