 The great search we're going to do by did you key in it for you? Did your lady lady uses her powers of engineering and smarts to find the Things that you need on did you key calm lady? What is this week's great search? Okay? This week's great search is for a kit maker who contacted us and They're picking out parts for their kit and they wanted it some advice just to make sure that they picked out the right part So I'm gonna double-check their work for them And that's that's something that I do for people in the community who are making kits they're just like I think this is a good part and This kit maker was looking for a speaker and they had a couple specifications that were important First it's a eight-ohm speaker because the audio driver that they have for this kit. You can only drive eight ohms Quarter watt so it can be quarter watt or higher, but it can't be less or the speaker could get blown out The speaker has to be about two inches diameter and round It doesn't have to be panel mount and the kits you're gonna hand solder to it. So it's okay if it's not PC pin They didn't really care too much with the material the speaker was made out of But they did want to make sure that the audio frequency Was responsive around 600 to a thousand Hertz because that's they're making these audio effects And that's the frequency the main frequency that sounds that the sounds are coming out So they sent me a couple options and I was like well, I'll do a great search And I'll just verify that you know what you're looking for is a good kid Especially also, you know, of course, this is a low-cost kit Not low-cost, but it's you know, they want to keep it affordable and so they basically want the Least expensive goods quality speaker you can spend a huge amount of money on speakers and speaker systems But what can they get that's going to be in stock available and affordable? Let's go to The computer This is about that lunar eclipse check that out and then this is if you're interested in the New Jersey Jewelry show. That's that too. Oh So let's go to Hold on I'm I'm using chrome now. I'm trying to move over from Firefox to Chrome So I'm still learning the browser. Okay, so we're gonna look for a speaker and There's a whole category for speakers. That's great Did you key stocks about three thousand speakers? So there's a lot but not so many that I don't think we're gonna be able to get them As usual because we're not looking for a replacement part. We're looking for a kit We want to make sure that the part is active and available We're also gonna go for normally stocking So, you know parts that are usually available even if it's not available today It might be fine because they're they're still designing the kit Maybe by the time they're ready to purchase all the parts. It'll be there I mentioned again the impedance So, you know, they said 8 ohms, but I think usually, you know, you can go from about 6 to 12 So I'm gonna use the ranging selector I mean, you know, most speakers are going to be around 8 ohms if I picked those values, but You know, in case if there's some good options a little bit around 8 ohms Next up I want to be round, but it's okay if it's in a frame. So I'm going to just say round Round plus frame. I don't want square oval or octagon For the size they wanted it to be about two inches in diameter So if we go down to size and dimension You know, it's it's you know, plus or minus a little bit. So I'm gonna say maybe 1.7 Up to about 2.5 inch diameter and then, you know, I can I can see what's available So already we've like really done a good job of reducing the the number from, you know, whatever 3,000 it was down to about 85 Next up is the power rating. So again the audio output circuit for their kit is about a quarter watt You know, of course, you can always connect a bigger speaker, but you're not gonna be able to drive it very well So it's not gonna sound great So I think I'm gonna go for about one watt to about a quarter watt Again, you don't want to go below the rating because then you could blow out the speaker So it's always better. It's always okay to be a little bit higher Same with Impedance, it's like you can drive a Circuit for eight-ohm speakers with 16 ohms. It just won't be as loud What you can't do is connect a four-ohm speaker to an eight-ohm speaker circuit because it'll It'll damage or blow out, you know The the driver because it'll be trying to drive the speaker and won't be able to drive it into the impedance I mean most circuits have some protection, but it's still it's still pretty risky Okay, so now we're down to about 40 options All they're looking pretty good I think what I'm gonna do is You know first off they did want something affordable So I'm gonna look at prices at around 250 pieces because that's about how many kits they're gonna You know, I tend to make about 250 kits at a time They're probably gonna start with about that number because that's what you can get good pricing So there's a couple of good options. You know paper speakers plastic speakers All these are good. You know these speakers This one I think can look at the data sheet It's got a bit of a lip which could make it easy to mount into a PCB and then you know It's got this nice big horn on it Let's go back You know one thing is is that as you know the speakers that are gonna be less than two dollars, you know, you're not gonna get Great frequency response So these go, you know about 450 to 4 kilohertz so they can do you know Simple audio effects some simple music you're not gonna get high fidelity But it's like if you just want a little enunciator type circuit there That's fine. She did want something that was You know a low, you know having the lower frequency a range available So these five hundreds might be a little bit too high and the 600 is definitely too high So I think you know these first few aren't too bad What I would do is in what I always recommend and when I had to do projects with speakers because you know you there's specification, but until you really hear it, you know, you don't know How your audio clips are going to be affected by the speaker Size and make and and the sound pressure level I would actually just get one of each of these because they're all in stock and they all they all have plenty of availability So I probably get like the first five from this list in price and then Just connect them all to the circuit and then you know, maybe a B test them really quickly have to Going and then, you know switch them power You know switch the start of the speaker from one to the other and then you can really quickly tell like This one just has a better sound. That's there's really no other way. I found to really Be able to test speakers, I mean that once you get the basic specifications That's what I recommend. So there's there's two here Both are eight ohms. One is a quarter watt and one is a half watt But all these are, you know, well within range. So I Think this one would be what I would start with start, you know try this one first and see if it sounds good enough and Just, you know, buy one of each get a sample set and then the one You know, maybe I have two alternatives already in case one isn't available You know, if you can make your cut out so you can fit one or the other It's another good thing about settling on one size and a hundred millimeter slash two inches pretty common So the speaker would be a good one to start with for this kick design. That's great church