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- Опубликовано: 28 июл 2024
- Back to our RF repair series and a look at a oscilloscope kit.
Original JYE Tech DSO138 DIY Digital Oscilloscope Kit SMD Soldered 13803K Version --
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Kind of funny, about the same year as you put up this video, I decided to build that kit. I ordered it while we were wintering in Arizona in a 35 foot Class A Motor Home, and that's where I got it. I put it together at the booth of the RV using a 5 volt USB Soldering Iron, I used the same method of laying out the resistors, and had good luck with the build, in fact I still use the little guy today.
Good morning Buddy, your brother and family is now on our prayer list. Please keep us all posted on his recovery. This video was a great kick start for me as I have many radios to repair. Great tips as always. Looking forward to the series. Blessings Joel.
Thanks Joel. He will be healing for a while now. Glad you liked the video
Just wanted to wish your brother a speedy recovery and hope everything turns out alright for him.
Thanks William. He is doing much better now. Thanks again.
Thanks for your great video. Will pray for a rapid recovery for your brother; please tell him to hang in there.
Much appreciated Michael.
Love competent people like you, steady, wise and trustworthy.. Rare thing these days. Cheers from Australia. Regards to your brother.
Thanks for those kind words my friend.
I started watching your video, thinking you only had the little portable oscilloscope, but then you panned upward and showed an entire WALL of test equipment. Nice setup! I repaired radios in the Air Force, so this was like old times.
Thanks you. Actually there is three walls full of test gear, from 1930s to present. Thanks for your service!
Wow, I'm very sorry to hear about your brother Buddy. I'm glad he survived and I wish him a speedy recovery
Thanks, He is a tough one.
Buddy so sorry to hear of your brother. He and your family will be in my prayers.
Mel
Thanks Mel. Never know what tomorrow brings.
Buddy, hope your brother has a speedy recovery! Another excellent video, Thanks!
Thank you very mush Scott
Thanks, Buddy for doing a review on these little scope kits. I wondered how they would work in the real world. I was surprised with how clear the display was on it. Love the videos! Also, our thoughts and prayers are with your brother, that he may make a speedy recovery.
Thanks. Yes it surprised me as well. Very crisp and clear display and not a lot of noise when using a real scope probe,
Thanks for all the pointers Buddy...we'll keep your brother and family in our thoughts and prayers. 73 - Dino KL0S
Thanks Dino. Appreciated it. Will be posting another video tonight.
Hey Buddy, really sorry to hear about your brother. Hope he makes a good & speedy recovery.
Thank you very much
another great video Buddy. really enjoyed this one. My vote for the most useful video for DIY radio repair would be a radio with no measurable output from the transmitter. Taking the viewer through the tracing of the signals from the oscillators to the driver and final and showing what to look for from your O-scope or RF voltmeter along the way. I feel like most guys understand the concept of following the circuit trace, but don't know how to interpret what they find along the way.
Great, have a cobra 29 in that condition. We will be going through the whole rig. Thanks for stopping in.
Excellent, excellent, excellent, video Buddy!!! Oh man, so sorry to hear about our brother's accident. I hope he is able to fully recover to top health soon. Thank you so very much for putting out this series. It is a great refresher course for an old Tube guy like me. Most of the principles are the same but a lack of experience with the solid state technology of today makes this series perfect for me. Looking forward to the next video in the series. Will keep your brother in my prayers for a speedy recovery.73 DE K7RMJ Frank
Thanks Frank for the very kind words. I do plan on covering some toobs in this series later down the road. Appreciate the comments.
Appreciate you taking the time to maker and upload these videos. Thanks, Buddy
Your videos are great! I like the fact that you watch Mr. Carlson's videos as well. You explain things very clearly. I have been a tech for 40 years, and you have excellent judgement and skills.
Thanks Walt. Mr. Carlson is an excellent teacher as well. One of my four favorites on YT. I just use practical common sense to every approach.
Thanks for the overview of the little digital scope. Looks like a nice little scope for doing audio troubleshooting, I like the small size. I think they have a acrylic case available for it as well. The price is very reasonable.
That little component tester that you also have on your bench is really nice, I got one of those from Banggood a while back and it has come in handy for checking capacitor ESR, etc. For the price you can't beat it.
Hope all goes well with your brother, prayers that he recovers well. Family comes first.
Thanks Pete. Yes for what these things are they do a decent job. I am very happy with them. Will see what they send next :)
Thanks for giving us all some good teaching! Catch up with your workload and of course taking care of your brother's needs...YT videos can wait. I'll watch them when you post them!!
Thanks, glad you like the videos. So much here to do lol.
Big thumbs up buddy . Hope your brother has a speedy recovery thoughts and prayers from across the pond
Thanks allan. See you in the next...
Radio Shack used to sell a 9 VDC battery powered speaker for cheap. It had a single transistor preamp (which I think used a 2N3904) and an LM386 amplifier and a volume control/switch. Anyway, attaching a cable to this makes a great audio detector. You can then "hear" the audio rather than watch a waveform. The transistor preamp would help prevent loading of the circuit under test. If you used an emitter-follower or voltage follower op-amp instead, you get even better input impedance. You can also use an old, discarded computer speaker. Audio tracing on-the-cheap.
I will pray for your brother. Hope he recovers fine. Great series, but that's what we always get from you. On the DSO138, if you hold down SW4 for a few seconds the frequency and voltages are displayed on the screen. They are nice for quick and easy audio work. Looking forward to your next video but understand you have to get some paying work done also! ;-)
Thanks Robert and appreciate that tip. Very nice.
Thanks for the video Buddy! Hope your brother recovers soon! Our thoughts are with your brother and your family! 73
Hi Peter and great to see you ole friend. Thanks for the find words. 73
Great video man. Sorry to hear about your brother will pray for a speedy recovery. 73's kg2nc.
Thank you Ruben
Great video. Will watch them all. A long overdue video from any tech. Very glad to see it coming. Best wishes for your brother.
Thanks Phil
Good video I enjoyed it. Nice little scope too. This is going to help a lot of beginners nice Buddy 👍
Buddy thanks for your great video series, it's like being with an old friend in the ham shack. Very sorry to hear about your brother, our prayers are with you and your family members. 73's, Dale kg7ssb
Thanks Dale. Glad to have you riding along.
I was watching this video when YOU said something about winning some test Equipment and YOU said if anyone who is a Subscriber can ask to be added, who can be selected for the drawing to ask to be selected and so I am asking to be one of the Select.... Thank YOU for YOUR Videos they are very well informative and also I learn a lot, and going to make some of the same kind of Easy or some of the test Equipment YOU use often...
Hi Buddy:
Sorry to hear about that terrible head-on crash with your brother. I hope everything eventually will turn out OK for him.
I liked the JYE Tech DSO138 so much, I just bought one with the case. I haven't heard of this unit before. Thanks!
I get a little squeamish sometimes testing something unknown with my 1054Z or TAS465. But with this little gem, I wouldn't bang my head against the wall if something bad happened to this. A great instrument to use first to verify a safety status before bringing out the "big guns."
Great video as always!
Tom
Hi Tom and thanks. Yes I agree, blow up something cheap before bringing out the big guns. I was surprised just how well this little thing works
first place i go on those cobra chassis is C67/output coupling cap, but I know it's common and just use AC volt meter with it cranked up I shake them to see if meter is stuck (usually are and check for voltage there too) :)
good training videos for many unfamiliar with service work/repairs
Thanks. Yes I have seen several of those caps go south,
Yes Buddy or prayers go to your bother quick recovery .Yes Buddy I got one of those DS138 got it in a Plastic Case surprisingly thing does work well for 200 khz. By the time you read this it will be 5000 Subscribers ..73's/GB Buddy
Thanks Dale. Really impressive item. 5K here we come!!
Neat little scope, Buddy. Thanks for the video and prayers go out to your brother and family. 73...Dan w4mnc
Appreciate that Dan. THanks
Good job buddy. Glad you are doing this..I'm along for the ride, I just did one of those vtvm's you showed here.
Great Justin and thanks for riding along.
Congratulations on nearing 5000 subs, I still have a way to go to catch you! I hope your brother recovers OK.
Thanks, growing slowly but steady. Looks like Mike is moving up fast. Better keep an eye on him.
Another great video. Thanks!
Thanks for watching Ray.
Man if they only had cheap test equipment like this when I was a kid. Definitely can't beat the price.
You got that right, Mike. When I was a kid the scopes were major expensive and HUGE LOL. I like this enough I think I'll get one. Great little toy for the workbench.
man so different to what we had in our young days!
You got that right. I had to use a rock, hammer and chisel to look at a waveform back then.
Another great video. Hope your brother is doing better.
Thanks Jon
congrats my friend....always very good videos...
Thanks Nik, good to hear that.
superb video ...very informative..thanks sir
Thanks for watching
I hope your brother recovers quickly.
In 1967 when I was eleven my dad got me all the test equipment out of an old TV shop for $20. There was a scope, signal generators, VTVM ... too much to list.
Thanks Mike, he is doing much better now. Nice stuff for an 11 year old. Things were simple back then.
Very great video nice work
Appreciate the comment.
That's Pretty Cool... Thanks Buddy For Sharing I My Purchase One To Play Around With... 👍
Cool deal Aaron. Thanks for watching
The Radio Shop Sorry to here about your brother hope all goes well Buddy....
Thanks Aaron
Hi Buddy, did you ever continue the cobra 25 basics series? I really enjoyed this tutorial and how getting started doesn't have to have crazy expensive test equipment.
Family first my friend......family first.
Thanks my friend
Where can I get a repair manual on Johnson messager 3 CB
Trying to hook up a freq meter to the cobra 29 so it reads the frequency while it's receiving. Can't figure out how to get it done. Hope all is well with you and your family.
What counter are you using? Some will not work. Need something like a crc100.
was going to try a Palomar PD700.
I am going to have to look that one up. I think this unit was made to go on older ham radios
I have a dso nano its ok from seed studios,but sometimes gives me false readings
Thanks for that information. This one seems to be ok.
Do all CB's use a 10.42 Mhz reference or just that brand and/or model? I put together a DSO 138 about a year and a half ago originally till I could find a scope for 50 - 70 bucks. I haven't given up. Seems like all the scopes I find want 50 - 70 bucks for the shipping. I am interested and could use the meter. I have asked all friends ans family for electronic devices that they are going to throw out. I am getting better at successfully better fixing them. If I can't fix it I desodder everything for parts. Thanks for the videos I have learned alot and I'll keep your brother in my prayers.
About all phase lock loop radios that I know of uses the 10.240 reference crystal. There are however some older off brands that did not. Shipping on scopes can be expensive. Make sure you reply to the meter giveaway video when posted.
Buddy thanks for your time doing these videos, for it is fun to watch. Don't know were you find all the time.
kj4si
Joel it is hard at times. So much to do here and at work. I will keep pushing forward. Thanks
♥️👍
Like to throw my hat in t h e pot for the meter take a chance to win P.s. great videos I'm learning some and likes your explanation on what ur go to do and what ur trying to find thanks a lot .
Thanks. Make sure you reply to that video where the meter is at.
I like your videos, and please from now on do beyond econocial repair videos. The most evil thing on youtube are people doing things for possible economic gain.
Joseph. Thanks for this comment. Honestly, there is no economic gain in making RUclips videos or from free stuff that suppliers sends in for review. Hence why I do not do dedicated videos on items like this scope. I try and add them in a current video. Also why I do not put fancy themes, click bait, or animations in my videos. I like to keep things on a serious note. Channels on YT that do that have very high views. My total views are below 500K. Some have over that on one video. I rather keep things simple and help others to learn and provide cheaper ways of repair their equipment. Thanks for commenting.