MicroCap Tutorial Class A Amplifier circuit sent in by subscriber  

Hi Eddie! Glad to heae you're feeling better. Take care and look after yourself....thanks for uploading too! :)

Thanks again for taking the time to go over the 2 circuits I sent you. You've provided a great explanation of things to look for. I'll for sure play around with this. I'm glad you demo'd this with the wider audience as it looks like you have quite a few fans whom have liked it. Thanks again and I'm glad you are feeling better.

Sir I would to thank you again and again for this video and the information you're givin.

Hi Eddie, I am so glad you are ok. Thank you so much for sharing your expertise. Take care. 👍😃

I think that MicroCap12 is the best out there, I have used it in every design since 1994, Interestingly enough it has far reaching capabilities such a listening to the amp you just designed. By recording a short WAV file and specifying it as the input stimulus you can actually listen to the amp. Besides that you get the output wave that you can compare using an audio program such as Audacity and switch back and forth to A/B test the sound you are hearing. There are much more to it than at first glance, you can have mixed technology circuits mixing digital and analog circuits together without the need to simulate it separately. Eddie you are delving into the Abyss once you surf around the program like a pro there is little in the way of designing perfect products. It capabilities are enormous written by a bunch of super analytical engineers and scientists. Their models are not bad but you can get specific models from the manufacturers. It has super flexible scripting to create very complex subassemblies that can be used as building blocks in a schematics. To explain every facet available you will write a very thick book because there are many unrevealed magic in it. For something so complex it is difficult to generate an exacting operating manual. If your models are correct you can use microcap as a repair tool for a product as the voltages and current are precise. Eddie when you are ready I would like to share my unforgiven amplifier with your disciple's, it has almost zero distortion megahertz band width high output and an amp that will show the short comings of everything available out there, It is super simple but super hi-end in every respect, 4 transistors and current feedback, unconditionally stable. Something that is absolutely neutral and could be used successfully to create a particular house sound around it, like many high-end designers do. How do we contact each other? you can try mailing me : nico[at]ras[dot]mobi. I would go so g\far as help the disciples lay out the PVB designing a proper power supple and have an amplifier of their own that will rival everything on the market. We do it stage by stage so nobody gets left behind.

So glad that you are OK! Today is mothersday in finland too, so much love to all mothers. Been building them tube amps but i will design pedals like clean boost and overdrives etc.. And make my amp that has built in fx loop, to behave well with these fx pedals in the same loop.. And now that I have been using and learning Micro-cap, i love the idea to be able to test my circuits before building them. So again, big thanks to you, if you had not done these videos I would not know about this sofware! Have a great day! -Anssi

Wow I'm happy to c dear! 😍 Congratulations again

Great video. Maybe you can get John Audio Tech to use microcap. I think it would take his amp designs to the next level.

Yikes! did not know you'd had something happen. I guess your Patreon followers were made headsup, but whatever it was good to see you again & thumbs up on another explanation of using MicroCap with realworld circuit example. ....

Thanks for the videos they are greatly appreciated. Rick

Hi Kiss, which multimeter do you suggest me between the Klein MM700 and the Brymen BM235 ??

At 25:12, trying to grasp how the two voltages can be in phase?

Hey, could you some time this year make a video on how to measure high frequency signals correctly on the load with passive probes like pp-510 from Siglent 1000x-e series. I am having reflected signals even on 100Khz that overshoot both on positive and negative, I am guessing it is because I connect to the ground with "long" ground cable that comes with a probe. I guess I have to use iron cap for the probe, right? I am using FY-6900 signal generator that has output impedance 51.2 ohms.

Hey can u do a video about jfet topologies? Like are putting a bunch of lv fets acts like a hv fet?

Id like to try and "Schematicize" my active speaker amp for archive/reference purposes. Maybe even make a gerber file if I ever wanted to print up a new board for replacement or possibly a clone project.

I am so afraid of this program going to the dump in the near future, there are 39 years of development and nothing like it out there. It would be so fantastic if the program could be developed and maybe be added a circuit designer. Is there any possibility for you to contact the CEO and ask if it could be allowed to go open source, I will be more than happy to give free space and domain. I think it's super important to do something now before everything is trashed! :-)

How can I see the gain on this simulation?

Without feedback!