These "The Learning Circuit" videos with Karen are great, keep em coming. She does a great job of explaining the basics to those of us who are trying to get a grasp of things and really get into the hobby.
Really loving this series, Karen has really come into her own here. I'd love to see the circuit switch on then only be able to be reset once a button is pushed.
4:53 one thing to note is that if you put the buzzer on the Emitter side of the transistor, it will be a little quieter. That's because transistors have a voltage drop, which is typically 0.2V. It's usually best to put things on the collector side, unless you account for this drop. I bring this up because I had an IR project where the IR LED was a little dimmer than expected because of this. Didn't matter much for that project, but it's something to keep in mind.
You know, Karen's the last person on this show who still has that energy that Ben used to have. It should just be The Karen (Last Name) Show. I would watch that. A good RUclips channel has either one single person or a very tiny crew that brings consistent content.
Agreed. Karen is brill, i've always enjoyed her contributions to the channel, when she was co-hosting with Ben and the presentations she now does on her own. She's fab.
@ 4:00 you state the resistor is pulling the base to ground. Without the resistor, the CdS could still switch the base on and off, right? You seem to be implying that w/o the resistor, the CdS wont switch the base on, or off. Can you explain why the resistor is needed, in more detail?
Nice transistor application. And the demonstration at the end was perfect. As another commenter mentioned if the thieves are smart they might try to steal candy in the dark. Maybe you should add some LEDs to light up the candy so you can see it better 😉(and have enough light to trigger the alarm in the dark).
@@hellspark Even though I grew to view Radio Shack as a terribly over-expensive garbage shop full of nothing you would want (Because that's what they had become)...I am happy to hear of this - thanks for the heads-up!
At a job I had once: we had ourselves - a LUNCH THIEF! This lunch thief would sneak into our break room fridge and eat our food! I paraded two Arby's roast beast sammichkes around for all to see prior to planting them in the fridge. One of them had insulation batting inside, the other had a little sand inside. Right there on the floor was the bite shaped piece of sammichk. FUNNY! The insulation turned him off I guess. Our beloved janitor, a big fat quiet sweet black man twice our age. Non of us said anything to him - we all liked him too much.
These "The Learning Circuit" videos with Karen are great, keep em coming. She does a great job of explaining the basics to those of us who are trying to get a grasp of things and really get into the hobby.
Really loving this series, Karen has really come into her own here. I'd love to see the circuit switch on then only be able to be reset once a button is pushed.
Crazy motivated Elektroniker!!!
Very didactic!
Thank you
4:53 one thing to note is that if you put the buzzer on the Emitter side of the transistor, it will be a little quieter. That's because transistors have a voltage drop, which is typically 0.2V. It's usually best to put things on the collector side, unless you account for this drop.
I bring this up because I had an IR project where the IR LED was a little dimmer than expected because of this. Didn't matter much for that project, but it's something to keep in mind.
That's a great point! Thanks for pointing that out.
You know, Karen's the last person on this show who still has that energy that Ben used to have. It should just be The Karen (Last Name) Show. I would watch that. A good RUclips channel has either one single person or a very tiny crew that brings consistent content.
Agreed. Karen is brill, i've always enjoyed her contributions to the channel, when she was co-hosting with Ben and the presentations she now does on her own. She's fab.
I only watch this channel now for Karens videos. Keep up the good work Karen.
@ 4:00 you state the resistor is pulling the base to ground. Without the resistor, the CdS could still switch the base on and off, right? You seem to be implying that w/o the resistor, the CdS wont switch the base on, or off. Can you explain why the resistor is needed, in more detail?
Happy Halloween Karen
+1 for the Learning Circuit episodes. I learn something every time, and you can never have too much regrettable acting!
Nice transistor application. And the demonstration at the end was perfect. As another commenter mentioned if the thieves are smart they might try to steal candy in the dark. Maybe you should add some LEDs to light up the candy so you can see it better 😉(and have enough light to trigger the alarm in the dark).
So nice I watched it twice
Max Olmstead: Master thief! 🤣
Can you guys bring back Radio Shack
If you live near a Hobbytown USA, they carry Radio Shack parts.
@@hellspark Even though I grew to view Radio Shack as a terribly over-expensive garbage shop full of nothing you would want (Because that's what they had become)...I am happy to hear of this - thanks for the heads-up!
To on buzzer, when dark resistor should 1k ohm, I think
Put the candy box in a communal fridge, like at work...
At a job I had once: we had ourselves - a LUNCH THIEF! This lunch thief would sneak into our break room fridge and eat our food! I paraded two Arby's roast beast sammichkes around for all to see prior to planting them in the fridge. One of them had insulation batting inside, the other had a little sand inside. Right there on the floor was the bite shaped piece of sammichk. FUNNY! The insulation turned him off I guess. Our beloved janitor, a big fat quiet sweet black man twice our age. Non of us said anything to him - we all liked him too much.
Most components can be soldered to the underside of the lid is it is already plated with tin.
I love you
its very help ful to me mam
I like make a pda similar keyboard a BlackBerry. How you do it?
Now they'll do it with the lights off
2SC2983