Thank you for another interesting video! The magnetically attached breadboards are a great idea. If you are still looking for more breadboarding options, look for the Knight Electronics Mini-Lab. It has +5, +12 and -12 volt regulated supplies, 0 to +18 and 0 to -18 volt adjustable supplies, a clock and function generator 1 Hz to 10 kHz with sine, triangle and square with adjustable zero offset, plus 8 de-bounced switches, 8 buffered LEDs, two buffered momentary "pulser" switches, and a 1 k and 10 k potentiometer. They show up occasionally on eBay for a reasonable price. Regards, David
Nice work as usual! Only issue with breadboards is increasing frequency is a limiting factor, not great for RF in general but very useful for most low frequency analog and digital stuff.
Indeed, RF is dark magic 😅 - I'm happy to be able to try out circuits without much hassle now. RF is always an edge case that needs all sorts of special consideration.
14:13 have to watch out for those Off-Off switches . ;) One issue I had with breadboards was too much capacitance between the rows for higher frequency operation.
I think it should be fine up to around the low MHz range; but for anything truly RF, it's certainla a problem. If a PCB would require hand routed traces for the signal paths, a breadboard isn't oging to work for sure.
Yep the logic lab. I have a 100% complete (even with the ics) one I picked up a while ago, it also came with a case and two books, and an optional logic pulser and probe and one other over the IC dongle. Unlike other HP stuff the two books are in a word 'fragile' They will fall 100% apart if I try to scan them. Will have to make a vid on them some day. The breadboard on the logic-lab was removable so students could have differing projects on the go, or as I was told to take your work up to the teacher to have it checked or debugged as well in once course the student would pick up the breadboard with a 'Faulty' circuit and it was her job to find and fix the problems. Also according to local lore the designer of the box for the logic lab went on to work fro Apple and designed the cabinets for the the APPLE ][ line of commuters. Another great bread board are the 'Knight ML-2010 Mobile Lab' as it had nice size bread board and it could take 5X3.5perf board as well and it had a built ins function generator a ramp/sweep and pulse generator even three data buses all in a heavy duty AL case.
I did manage to score an affordable set of the logic probes/pulser a few months ago, so all I'd be missing to follow the labs for fun would be the lab manuals - I guess I could order the ICs. Indeed scanning larger books is difficult, I'm still struggling with the one for the µLab. I'll have a look out for the Knight one, thanks for the tip!
@@atkelar I know where one is for sale about 200$ drop me a line if you want the link to the sale. Scanning the books would not be hard one is the 'course' proper the other just an intro to logic ics and some data sheets. The problem being they will completely de-bind if I do it ;)
Indeed; but I've ssen that distinction only when ordering them. In casual conversation, I'm not sure if I've ever heard that detail. Most of the PCB ones I see referred to as "perf board" or "prototyping boards" instead? Is that common?
In my opinion, wire wrap is so much better. The circuits are much more robust, and can be used as a permanent circuit. With bread boards, you pretty much have to duplicate your circuit on a soldered pcb if you want to keep it.
It's a bit hard to come by wire wrap pototyping stuff these days though. The only thing I have is some euro PCB card connectors for wire-wrapped backplanes.
A double re-cap eh. it does not become more Atkelar than that he he. pity on those diodes. I did a repair on my M audio keystation 49 I have in my studio that had given up the ghost in the most weird and bizarre way possible making it go absolutely haywire sending out midi commands until the computer panic, turn on tons of indicators dim in flickering patterns and not working at all. I was looking for the fault for hours on end and I just could not find it. I had a strange signal on the scope that somehow seemed to appear from nowhere disturbing the boards. I re-cap, changed transistors, disconnected boards and de-soldered everything I could from the board making it just the basic midi interface and nothing, I took off the display and cut off traces from where the signal was. I was going nuts. you know what it was? in the end the fault was the Red Power LED that was defect, and yes it was lit up perfectly too. the issue was even more weird, it had a constant but non symmetric permanent pattern reverse polarity leakage through it, you heard me right, in some way the signals in the board made the LED leak in reverse while being lit that gave a constant exactly defined pattern on the scope that was a combination of the real signal and the LED itself leading to a complete mayhem in the board. that´s why I had this signal seem coming from nowhere because it came from the stupid LED. if this was not enough you could not measure the leakage with the LED out of the board either. it only happen at certain frequencies. I was like give me a flippin break how is this even possible moment. but replacing the power LED solved the issue and the keyboard have worked ever since.
@atkelar Hi, Atkelar I found the HP 5037T manual on the web as a . PDF Do you have a fan email or discord or telegram that I can send you the link to.🤔
The white stuff is "silicone grease", the dark stuff is "Molykote". The silicone is fine for just about everything plastic, the Molykote is perfect for metal/metal IMHO.
Is deoxit technically dipping oil for breadboards? I have found breadboards of varying quality online but I have yet to find anything decent for a holder that has any sort of switches or indicators much less a power supply. I see one on Amazon that is just a frame and some banana jacks. Unfortunately I live in a place that now that Radio Shack is gone I am probably the most well stocked and that is not saying much. Theres no surplus, recyclers and got to travel a while for a decent hamfest so whatever is currently for sale or on ebay is about all I got. I was shocked pun intended to find a new oldstock linear power supply for a broadcast console made in the 90s by a company out of business quicker than I could rebuild the one in it and probably cheaper if you count overnighting parts from digikey. That and storm damage took up my week. Got reminded why not to be in a building connected to a 500ft lightning rod in bad weather too. Fun times. I am going to borrow that 180 grit joke next time I am cleaning faders at work.
Not sure if ebay works for you, but there seems to be a good supply of these almost all the time. Schools are replacing them usually, as evident by "one of 10+" offers. I have my eye set on some, but one has to look closely at the price tag: there's at least one offer out for about 450$ for that CD-1 model I have here... that's about an order of magnitude too high.
Hi, Atkelar I found the manual for the HP 5035T, but TH-cam wont let my reply message to your video stay. Do you have a way for me to show you the page link.
TH-cam does not like links in the comments, you have to be a lil bit "resourceful" to make it undetectable for youtube itself. Underlines, spaces and plus symbols instead of dots and backslashes works wounders.
You are really the master of switches! I'd never dare to open one...
Snipping off the weird mains plug is satisfying 😂
'Close enough', a true engineer :)
Thank you for another interesting video! The magnetically attached breadboards are a great idea. If you are still looking for more breadboarding options, look for the Knight Electronics Mini-Lab. It has +5, +12 and -12 volt regulated supplies, 0 to +18 and 0 to -18 volt adjustable supplies, a clock and function generator 1 Hz to 10 kHz with sine, triangle and square with adjustable zero offset, plus 8 de-bounced switches, 8 buffered LEDs, two buffered momentary "pulser" switches, and a 1 k and 10 k potentiometer. They show up occasionally on eBay for a reasonable price. Regards, David
Agree with everyone else. Great video.
Whaaat? A new Usagi Electric and Atkelar videos on the same day? What is this, early christmas? :D :D
AMAZING! :D
I really like music in your videos ❤ nice restorations again 😊
@18:30 Always makes me think we're getting "Another Brick in the Wall". ;-)
English is difficult for me, but it is very interesting to watch
My native language is German, but for international audiences... I have to keep it in English. The subtitles are coming up in a bit!
@@atkelar We appreciate your English narration.
@@atkelar Your english is very good
Excellent work.. congratulations.. 👍
That puppet is really cute
Awww 😊
Very nice!
Excellent ! Thank You !
Nice work as usual! Only issue with breadboards is increasing frequency is a limiting factor, not great for RF in general but very useful for most low frequency analog and digital stuff.
yep that is a lost art, though till used in many military and space applications.
Indeed, RF is dark magic 😅 - I'm happy to be able to try out circuits without much hassle now. RF is always an edge case that needs all sorts of special consideration.
I have a little panel from something (i don't know what) which has an off-off switch. It also has a normally-maybe push button!
Oh, the maybe buttons are sneaky! 😸
This is a good video. 😸
Great! Thx!
14:13 have to watch out for those Off-Off switches . ;) One issue I had with breadboards was too much capacitance between the rows for higher frequency operation.
I think it should be fine up to around the low MHz range; but for anything truly RF, it's certainla a problem. If a PCB would require hand routed traces for the signal paths, a breadboard isn't oging to work for sure.
Thanks! To help buy more cotton swabs.
Thanks!
The black cat is highly educated.
Yep the logic lab. I have a 100% complete (even with the ics) one I picked up a while ago, it also came with a case and two books, and an optional logic pulser and probe and one other over the IC dongle. Unlike other HP stuff the two books are in a word 'fragile' They will fall 100% apart if I try to scan them. Will have to make a vid on them some day.
The breadboard on the logic-lab was removable so students could have differing projects on the go, or as I was told to take your work up to the teacher to have it checked or debugged as well in once course the student would pick up the breadboard with a 'Faulty' circuit and it was her job to find and fix the problems.
Also according to local lore the designer of the box for the logic lab went on to work fro Apple and designed the cabinets for the the APPLE ][ line of commuters.
Another great bread board are the 'Knight ML-2010 Mobile Lab' as it had nice size bread board and it could take 5X3.5perf board as well and it had a built ins function generator a ramp/sweep and pulse generator even three data buses all in a heavy duty AL case.
I did manage to score an affordable set of the logic probes/pulser a few months ago, so all I'd be missing to follow the labs for fun would be the lab manuals - I guess I could order the ICs. Indeed scanning larger books is difficult, I'm still struggling with the one for the µLab.
I'll have a look out for the Knight one, thanks for the tip!
@@atkelar I know where one is for sale about 200$ drop me a line if you want the link to the sale. Scanning the books would not be hard one is the 'course' proper the other just an intro to logic ics and some data sheets. The problem being they will completely de-bind if I do it ;)
TH-cam about page on my channel should show contact info. Depending on shipping and my bank account, this does sound interesting 🤔😁
There may very well be larger, but that is the largest axial capacitor I have ever seen.
Minor correction - these are solderless breadboards.
Indeed; but I've ssen that distinction only when ordering them. In casual conversation, I'm not sure if I've ever heard that detail. Most of the PCB ones I see referred to as "perf board" or "prototyping boards" instead? Is that common?
In my opinion, wire wrap is so much better. The circuits are much more robust, and can be used as a permanent circuit. With bread boards, you pretty much have to duplicate your circuit on a soldered pcb if you want to keep it.
It's a bit hard to come by wire wrap pototyping stuff these days though. The only thing I have is some euro PCB card connectors for wire-wrapped backplanes.
A double re-cap eh. it does not become more Atkelar than that he he. pity on those diodes. I did a repair on my M audio keystation 49 I have in my studio that had given up the ghost in the most weird and bizarre way possible making it go absolutely haywire sending out midi commands until the computer panic, turn on tons of indicators dim in flickering patterns and not working at all. I was looking for the fault for hours on end and I just could not find it. I had a strange signal on the scope that somehow seemed to appear from nowhere disturbing the boards. I re-cap, changed transistors, disconnected boards and de-soldered everything I could from the board making it just the basic midi interface and nothing, I took off the display and cut off traces from where the signal was. I was going nuts. you know what it was? in the end the fault was the Red Power LED that was defect, and yes it was lit up perfectly too. the issue was even more weird, it had a constant but non symmetric permanent pattern reverse polarity leakage through it, you heard me right, in some way the signals in the board made the LED leak in reverse while being lit that gave a constant exactly defined pattern on the scope that was a combination of the real signal and the LED itself leading to a complete mayhem in the board. that´s why I had this signal seem coming from nowhere because it came from the stupid LED. if this was not enough you could not measure the leakage with the LED out of the board either. it only happen at certain frequencies. I was like give me a flippin break how is this even possible moment. but replacing the power LED solved the issue and the keyboard have worked ever since.
I'm bored of bread, I just want the hand puppet.
7:55 - I don't know if that's the right decision - remember: in case of tantalum, "cap" is spelled with an "r"
Ineed, but these are the tubular expensive, NASA grade ones... they should be fine *knocks on wood* :)
😸
😸
@atkelar
Hi, Atkelar
I found the HP 5037T manual on the web as a . PDF
Do you have a fan email or discord or telegram that I can send you the link to.🤔
I giggled so much during this one, thank you!
Such a dirty video haha
What is the lube you've used for the pot? PTFE?
The white stuff is "silicone grease", the dark stuff is "Molykote". The silicone is fine for just about everything plastic, the Molykote is perfect for metal/metal IMHO.
Is deoxit technically dipping oil for breadboards? I have found breadboards of varying quality online but I have yet to find anything decent for a holder that has any sort of switches or indicators much less a power supply. I see one on Amazon that is just a frame and some banana jacks. Unfortunately I live in a place that now that Radio Shack is gone I am probably the most well stocked and that is not saying much. Theres no surplus, recyclers and got to travel a while for a decent hamfest so whatever is currently for sale or on ebay is about all I got. I was shocked pun intended to find a new oldstock linear power supply for a broadcast console made in the 90s by a company out of business quicker than I could rebuild the one in it and probably cheaper if you count overnighting parts from digikey. That and storm damage took up my week. Got reminded why not to be in a building connected to a 500ft lightning rod in bad weather too. Fun times. I am going to borrow that 180 grit joke next time I am cleaning faders at work.
Not sure if ebay works for you, but there seems to be a good supply of these almost all the time. Schools are replacing them usually, as evident by "one of 10+" offers. I have my eye set on some, but one has to look closely at the price tag: there's at least one offer out for about 450$ for that CD-1 model I have here... that's about an order of magnitude too high.
@@atkelar I will have to look then. I don't know if I have looked for specifically them used but finding them new wasn't giving much result.
Hi, Atkelar
I found the manual for the HP 5035T, but TH-cam wont let my reply message to your video stay.
Do you have a way for me to show you the page link.
TH-cam does not like links in the comments, you have to be a lil bit "resourceful" to make it undetectable for youtube itself. Underlines, spaces and plus symbols instead of dots and backslashes works wounders.
Atkelar has catflu! 😷😁👍
I'm more of a summer cat... I got stuffy nose from October to May usually.
@atkelar Poor kittycat 😊