79. Some Problems With This Current Mirror

If you do a search for a current mirror on the web, you'll probably find this one. The problem is that it doesn't work as drawn. I take a look at the circuit and show you one way to fix it.

[@berniken6511]

Really great to have you back. When I saw the notification for your video I was really pleased..........................................Berni

[@gfodale]

Welcome back, and thank you. Also, I had already burnt up a few 2n2222 transistors following the others presentations. Dropped it as it did take some time just to match the betas. This helps greatly on understanding it.

[@998SBayliss]

Yay. Never took you off my subscription list. Thanks for continuing.

[@Ziferten]

Hooray! New Offset Volt!

[@SuburbanDon]

Glad you're back.

[@simplyflipflops]

Welcome back! We've miss you!

[@Gaark]

pleasant surprise to see a new video, awesome :D

[@TheOffsetVolt]

Glad you liked it!

[@jeremyo1457]

So happy youre back! This was an awesome video. Thank you so much! Great explanation.

[@glenyeldho5782]

We missed you ! Happy to see you back with awesome contents as always 🔥

[@TheOffsetVolt]

Appreciate it!!

[@Verd254]

Nice to see you uploading, Mr.A.

[@williamhazelwood8288]

Good to see you back M8 ~ Best wishes from New Zealand.

[@TheOffsetVolt]

Hello there!

[@williamhazelwood8288]

I remeber my uni professor explaining the effect of early volatge being the figure of merit of a current mirror but never really got it untill now thanks great vid!.

[@vincei4252]

Thank you. Very interesting.

[@x-plode1835]

long time no see man , good to see you again

[@efox29]

Yay! Such great educational content!

[@electronicssciencebysherry5050]

I like to explanation Sir thank u so much ,I need more amplifier video s thank u

[@enriquevarela8616]

Great, bien venido, regards from spain.

[@TheOffsetVolt]

Thank you very much!

[@Byzmax]

Yay! Welcome back!

[@MrWasim100100]

you explain very nicely please some vintage test equipment like vom, vtvm, tvm construction working principles possibly restoration, not find on internet :)

[@TheOffsetVolt]

Great suggestion but that's a little out of my are of knowledge/expertise. Mr. Carlson's Lab is an excellent channel for this. I would check it out.

[@t0raneko]

I hope you will continue the Elenco radio series

[@davidluther3408]

INTERESTING CIRCUIT.WOULD PUT OUT VIDEOS ON A WIDLAR AND WILSON MIRRORS?

[@ivolol]

Were you trying to match the Hfe for both transistors? Do you remember what match you got at the time?