If only this kind of thing were available 50 years ago I'd be genius now! 😊 So great that you are helping the youth of today with this stuff. Big thumbs up to you sir.

The boards looks nice... with the schematics on there. But what really steals the show is the IMSAI Dog logo in the corner! Really well done! Woof!

if you rev the board I would suggest R to gnd on the input of the switch circuits. especially the darlington etal

I made a board with trim pots for the resistors so you can pre-set the bias values etc then plug in your BJT and check the config, tweak it suit your needs. Uses a 6pin socket so you quick remove and put in a different BJT. Also available in PCBWay.

Dang! Scooped by the man himself. Was just talking to a friend about building something similar for a science class

Thanks for many good videos. You have learnt me so much that I even can imagine what is happening just by looking at the circuit.

Nice board and thanks for doing this. One request - could you try and keep the boards under 100mm. These boards are $32 without shipping because of the size, otherwise they would have been $5.

Your Opamp boards you designed did look nice in the Matte Green...cheers.

Built similar back in the early 80's for our Students for their experiments, at our University ... veroboard in a case ... they're very handy, even today for DIY Electronics ...

Thank you for these PCB’s and Videos 👍🏻

Wow a superb way to teach transistor theory, as well as the opamp,1 as,well ! Nice design 😮

A nice and simple demonstration board. Kinda like Evil Mad Scientist's 741 and 555 kits, should be a lot of fun to learn electronics on. My personal quirk would be to use trimpots for at least the most important resistors in the circuits, making it possible to change parameters and observe how it affects the performance.

Its like you are Forrest Mims but in hardware! I love these. I have actually spun up a few basic boards so I dont have to wireup from scratch when prototyping

Cool. on my phone, but going upstairs to order. Mosfet next? 😊

Clicked your pcbway link, clicked add to cart, signed up, total $52.77

Beginner even the cheapest Horror Fraught meters will work, and a 9V battery and battery clip with leads also works well as power supply.

Very nice! I have a question that's always nagged me about the "simple" configuration. I know it's a "common emitter" configuration, but the load can be configured in two ways (which is true for an "open collector" configuration). 1- One way is to put the load directly in line with the collector which is often done to drive a motor or an LED. In that case it is non-inverting. 2- However, another configuration is to place the load as a branch off of the collector. In that case it is inverting. Are there specific names to distinguish these two "simple" configurations?

the darlington part has vcc written on ground?

So its a rip-off of the Radio Shack learner's kit. circa 1970 - 1990. Instead of Solder Pads, they used Spring Terminals to grip the legs of components, and wires. Day 1, Elec Tech Engineer. We were handed pcb's like this, until I pointed out the solder mask was inverted... Didn't make any friends that day.

Very nice little board. We were taught analog electronics using boards not dissimilar to these in my high school. JFETs next? Then MOSFETs? IGBTs?

You only need the fancy tools when you start working with RF or audio. You can't really diagnose AC stuff with a multi-meter. You just need a function generator and any random oscilloscope.

Hi Imsai and Imsay the dog, those PCB's are so beautifully done they would make fancy pictures for a workshop wall - that is, in addition to their functionality - a great idea for teaching electronics - one functional example will cost 10 professional articles. 👍 That dog logo is beautiful - the first thing I noticed 😁 Just a question - why is Vcc written at Darligton near the ground 🤔 Nice day 🙂🙂 Tom

7:40 little helper )

Having 2 meters is great for measuring voltage and current at the same time. And battery powered ones are convenient because of no common ground issues. Even I know that. I use mine all the time for my LED experiments. Lol.

Sweet! You're a one man Radio Shack. I don't need the board but I'd like a copy of the silk screen artwork: it's a nice little reference.

...aaaand who's a good boy?

Well....a nice simple oscilloscope for under $100 sure comes nice.

You don't need an additional negative power supply in order to bias a common base configuration 😎

Would you mind posting a nice image of the IMSAI Dog artwork. IMSAI Dog is pretty well everyone's favourite KZfaq dog 🐕.

I don't understand the point. Back in 80 when CAD software systems were in $1M+, this was a a great idea. Now, when you get them for free, why bother? It's much faster to build and do simulation in software then doing all these things manually. Don't get me wrong please. It's good to touch and make hardware stuff but for learning and building some schematic, the CADs are priceless.

Ok, I love your videos, but please for the love of God, hold whatever you are filming still so we can see it better!

Thank IMSAI guy M0GZV