Another fantastic teardown. It was really neat seeing traditional CMOS logic chips up close. I used to use the 4000 series a lot before microcontrollers made things so much more versatile. (But I'd still use CMOS if it was better suited to a simple task.)
@TheChipmunk20089 жыл бұрын
bigclivedotcom indeed, fran's latest video is gonna cause a run on cmos counters and NE555s... lol
@savneetsinghrairai6823 Жыл бұрын
Great to find you here I wondered how this mistery machine works .....might be an piezo occilator to give pulses
@whitefields55957 жыл бұрын
"I've got another one coming but I've got to wait a few months before it comes out of him"
@built2last319 жыл бұрын
i have a implantable defibrillator it has shocked me quite a few times to keep me going i feel like a cat with 9 lives it shocks you at 41 joules feels like getting hit with a baseball bat it amazes me how small they are
@mirabilis9 жыл бұрын
Does your heart stop?
@frollard9 жыл бұрын
Rikard Bengtsson its a defibrilator - thus it only fires when he does not have a normal sinus heart rhythm. As the name suggests, it stops the heart from 'fibrilating'...kind of like a seizure where the sequence of 'brain pulse, this ventricle, that ventricle' doesn't happen in order. The defibrilator stops this bad pattern by shocking the heart, hopefully resetting (stopping it entirely) it from goofy random rhythm back...in the hopes it will take the next brain signal and restart normally.
@built2last319 жыл бұрын
i dont drive anymore not a safe thing to do my wife does the driving i have to be careful doing electronics i dont to fry any of my projects
@funky3ddy9 жыл бұрын
***** I guess there's really no need for warning, since you'll probably feel improper beating of the heart before defibrillator kicks in. Joe Schmoe I wonder, how and how often do you recharge it? Wireless charging?
@Landrew09 жыл бұрын
I'm amazed at the sophistication of such a device from the 70s, but a bit disappointed at the apparent lack of progress since then.
@andreiserban44076 жыл бұрын
Landrew0 why spend milions of dolars to improve something that does it’s job
@MM0SDK9 жыл бұрын
I have to say, this is brilliant. I guarantee you were a nightmare as a kid, taking all yer toys apart. Don't worry, I was too....lol. I've often wondered what those pacemakers were all about. I think they use titanium because its one of very few metals our bodies accept and will even fuse with, though i may well be wrong.
@youreale9 жыл бұрын
I was wondering if those chips have military specs. They looks like those used in the Apollo-era spacecrafts.
@TheDigitalAura9 жыл бұрын
Fascinating look inside some old school IC's, thank you so much.
@douro209 жыл бұрын
I would not be surprised if those chips were space qualified; Solid State Scientific was very much into these types of chips.
@MaxKoschuh9 жыл бұрын
sure they are...
@stevenking29809 жыл бұрын
Subed to u a year ago, YT unsubed me!! Glad I found you Mike. Love your channel a lot! I just put up inside a Geiger counter, marantz 1060, power inverters, lots a stuff. Your video on the X-ray machine was EPIC!!' So interesting/. You have one of the best channels on the tube! Thanks!!!
@akroeze9 жыл бұрын
That magnetic field switch is used to actually turn the pacemaker on and off. If there is a malfunction of the device a donut shaped magnet can be placed over the unit to deactivate it. Or at least with modern ones that is the case.
@KickF9 жыл бұрын
love these teardowns :) keep it up Mike :)
@imeakdo78 жыл бұрын
hermetic packages are easy to remove, all you need is tweezers (like at 5:52)and sometimes a solvent, if there's glue holding the package or a dremel if the package is soldered together or both, like at 4:40. (in that case, the package was problably welded or glued using epoxy.) unlike epoxy or plastic packages, in that case you will need to dissolve the epoxy or plastic using acids or using a dremel but the dremel is very imprecise so acids are more precise... -0v or lower means the battery is dead and it only conducts electricity, it does not store any...
@jhaluska804 жыл бұрын
My father worked at Intermedics Freeport starting in the early 80s. He worked with some of the people who developed that one. I believe these could be programmed, in some extremely limited fashion, like target resting heart rate, once it was implanted.
@vevenaneathna Жыл бұрын
wow i keep finding your channel, relatively small but every year or two I end up clicking on your video coz its the only one on youtube covering niche topics. keep it up. cool handdrawn? fiberglass? circuit board! I was surprised to find out that there are still about a half dozen people living (in france i think?) with nuclear powered pacemakers. their battery is apparently "good for life"... or ~25+ years. theres a study out there somewhere about how much money they have saved not having to be replaced. i would imagine they just use the spaceship style of wrapping thermocouples in something hot? ive always wondering what their xrays/CT's would look like... if there would be any radiation flashes visible lol. they apparently track those people carefully and make sure they have a regular burial coz the big issue is what if they get cremated and you cause a nuclear waste issue lol. tech back then was so much cooler in the 60s and 70s. interesting on this tear down that there were no sparks when you were using the Dremel. i suspect titanium? they use surgical steel/high chromium stainless now a lot but i think there is an advantage to titanium since xrays go through it so much more easily and you could theoretically inspect the inside of a pacemaker and identify a damaged capacitor or something? the reed switch is for the ER doctor. sometimes pacemakers go crazy and start shocking a rhythem that maybe shouldnt be shocked. can cause a lot of discomfort if youre getting blammo'd over and over and i imagine its bad for the battery. every ER has a big ring magnet stuck to some metal surface around where patients are usually triaged that can be used to turn off a hyperactive pacemaker. anyways, never even heard of a lithium iodine battery. very cool video. have a good one!
@JustinKoenigSilica9 жыл бұрын
I still have no idea what you're doing but it's soothing and fun to watch
@kennarajora65323 жыл бұрын
agreed.
@MM0SDK9 жыл бұрын
Looks really well shielded. I suppose it would have to be through, walking past a taxi rank and they key the mic, then yer ticker stops...lol. I didn't realise surface mount was in use back in early 70s. The plated through board looks a bit DIY though.
@tornuptom9 жыл бұрын
Brilliant video mike! Didn't set off an alarm this time either! This kind of stuff makes me love the internet!
@freekknolle61739 жыл бұрын
Make a zippo of the can
@msylvain599 жыл бұрын
I have the same model in my "little" pacemaker collection ! thanks for the teardown !
@SlavicUnionGaming5 жыл бұрын
msylvain59 why the fuck would you collect those !!! Theyve been inside someone!! and even if they are brand new its still gross
@sbreheny9 жыл бұрын
Amazing technology for 36 years ago! I didn't know that laser trimming was done at that time. Do you think that the programming was simply changing the state of flip-flops? I suppose EPROM was around then (not EEPROM) but I didn't see any evidence of it in this device.
@DatBlueHusky9 жыл бұрын
do you ever save the gold? old school stuff has really good gold salvage value
@furrtek4 жыл бұрын
/!\ beep boop detected /!\
@AndyHeisz9 жыл бұрын
Another great video mike!
@frollard9 жыл бұрын
How would that Rx coil work inside the metal can?
@jabelsjabels9 жыл бұрын
wow beautiful device even just on the outside!
@TomWalterTX9 жыл бұрын
Nice tear down! [EDIT: I thought the coil was a charging circuit, but not the case] Someone mentioned Solid State Scientific -- their logo was a cube with "S" on each side. I worked for a large analog company fresh out of school, and half the fun was our designers would use "freespace" to hide a little drawing. Goose Egg? Only bummer to implanted devices, is no more TIG nor Plasma use. Haven't done it, but two years away. Irony is if the Direct Brain Stimulator (DBS) works well, my hands will be stable enough to TIG weld.... uh oh. :)
@anttikantola81286 жыл бұрын
Hello man who knows the stars :) tell me is it possible with DIY way to build a microwave technigue using device that finds titanium or nuclear battery in friends body ? me and friends are normal arduino builder nerds.
@MongrelShark9 жыл бұрын
Is it posible the coil is for wireless charging? If you ever get one of these running I would be very curious to see the output waveform and p-p voltage.
@worthypook9 жыл бұрын
Charging was my thought also
@MongrelShark9 жыл бұрын
I know later models are wirelessly charged. Pancakes are perfect for inductive charging. I would think a com ant for close range (near contact) would be much much smaller.
@peterzingler62215 жыл бұрын
Wireless charging in the late 70s? Lol
@TheEPROM99 жыл бұрын
I always find the vintage obscure stuff more interesting, but then I do collect vintage computers among other various collections. Are those PCB's going on the PCB wall?
@ghesil9 жыл бұрын
How does the coil manage to communicate trough the metal can?
@mikeselectricstuff9 жыл бұрын
The can is not magnetic. There will be some eddy-current losses, but a decent signal will still get through
@mrjohhhnnnyyy57979 жыл бұрын
mikeselectricstuff If the can was made of ferromagnetic metal, then it'll be magnetic, right?
@stevenking29809 жыл бұрын
It's a non ferrous case right? Titanium or more likely a steel???
@mrjohhhnnnyyy57979 жыл бұрын
Steven King Steel IS ferrous metal
@spdwebdotnet9 жыл бұрын
mikeselectricstuff Thats an awfully big coil for communications. Looks almost like an inductive charging coil to me. Of course.. then you mentioned it was from the late 70's lol
@SeanBZA9 жыл бұрын
Standard CMOS, nice little bifet opamp and those Vishay resistors with the bare die transistors. I could probably ID the transistor, though you will find it is a run of the mill low power NPN or PNP device, typically 100mA 30V process, and Ft of around 250MHz.
@CB-RADIO-UK9 жыл бұрын
Really interesting and not something you often see if ever.
@LawnMowersThingsThatMakeNoise3 жыл бұрын
excuse my question. but is it safe touching the internals with bear hands.
@rasjnda9 жыл бұрын
The mini shears to cut off the tops of the ICs are interesting. Are the IC packages designed to have the tops removed in this way?
@kubeek9 жыл бұрын
No ICs are designed to have their tops removed. It just happens that ceramic packages are brittle and vulnerable near the lid.
@Atelierul29 Жыл бұрын
Where the hell do you find such interesting devices?
@SeanBZA9 жыл бұрын
PM3 flatpacks, those bring back memories.........
@wojciechkuske2423 жыл бұрын
OK, but where is film from removing pacemaker from body?
@batterydudellc9619 жыл бұрын
I've been working on getting you some. One of my dads friends is a cardiac surgeon and I'm sure he could get some for me I just haven't see him lately .
@peterforrer1359 жыл бұрын
its a long life battery lithium and does not recharge. the coil is used to produce the charge from a very small current - 2.7V @ 10mA to produce 20V & 120V depends on patient. as it only produces this charge very rarely it would last 5 years new models last longer and can be charged through inductance.
@AgentOffice8 жыл бұрын
do you have a nuclear one?
9 жыл бұрын
If you grind your discs too quickly, try to use a higher speed of rotary tool, usually when it sparks it lasts longer.
@ElectronicTonic1569 жыл бұрын
Cube logo = Q*bert
@Xenro669 жыл бұрын
Lool
@anttikantola81286 жыл бұрын
Nice things you study ! does a medical companies made nuclear battery radiate ? can i trust my painreducer implant not to radiate ? Battery told to last 15 years.
@3bayvillagers9 жыл бұрын
Intermedics was a USA company to manufacture pacemakers, the one shown is 1980th products, the company itself was acquired by what is now Boston Scientific, and the trade name ceased to exist, it goes without saying that Cardiac devices of today are much more sophisticated.
@MrOpenGL9 жыл бұрын
WHERE do you find those things?? :)
@jimbobbyrnes8 жыл бұрын
cemetery
@MrOpenGL8 жыл бұрын
jimbobbyrnes Lol maybe. But you don't find blood analysing machines or X ray machines in cemeteries :D
@sashablfc9 жыл бұрын
That's a lot of titanium if that's what it is! How much did that thing cost you?
@neiltanwar51386 жыл бұрын
can you tell me if pacemakers have expensive material used in them, like gold and platinum?
@peterzingler62215 жыл бұрын
Case is titanium thats it
@billwilliams63385 жыл бұрын
what are the common parts that fail in a pacemaker?
@jhaluska804 жыл бұрын
The leads and where they connect.
@tuopeeks9 жыл бұрын
Always wonder if a Tesla coil will interfere with these? The standard practice is to warn that they can, but I suspect the RF wont, but perhaps the magnetic field would damage the updating facility. Maybe worth an experiment if you get more.
@MaxKoschuh9 жыл бұрын
very good. thank you for sharing.
@kevinolesik15009 жыл бұрын
that was cool to see !
@BenjaminEsposti9 жыл бұрын
I recognize the 3 cube logo on the die there but I can't place the name.
@chrisshaw12948 жыл бұрын
+Benjamin “Ozias” Esposti Solid State Scientific.
@Spoif9 жыл бұрын
Pity you pulled the pacemaker apart. It looks very similar to the early 1970's lithium-iodide powered devices manufactured by Cardiac Pacemakers Inc; which offered longer power-cell life and significantly improved reliability.
@Max_Marz9 жыл бұрын
Hybrids are soooo pretty
@adamlumpkins20009 жыл бұрын
I live close to Freeport texas
@PY4SR9 жыл бұрын
Thanks Mike!
@SlavicUnionGaming5 жыл бұрын
thats fucking disgusting if it was taken out of somebody
@nathandean16879 жыл бұрын
alot of gold there too.
@nexaentertainment27647 жыл бұрын
Chips from around them would've probably been made using ~3-5um processes. Compared to today's~ 14-10nm processes. Crazy to think about how much smaller that is. Honestly it's just crazy to think something that large, where you can practically see all the traces and parts can do any kind of "logic". I mean I get it, it's just amazing. I love this sort of stuff, but it's beyond what I've learned.
@billa86717 жыл бұрын
you think that's large, imagine the size and complexity of the earliest analog computers. TTL and 4000 logic was a huge step ahead of the ENIAC days when a comparator took 4 or 5 tubes and a box the size and power consumption of a toaster oven.
@Razor20489 жыл бұрын
It is a shame that hospitals charge so much for them, there must be like $1-2 worth of parts in pacemaker.
@fuzzy1dk9 жыл бұрын
plus a ton of paper work, testing, qualifications etc. to make sure it doesn't kill anyone
@cogsinister1009 жыл бұрын
I think those military grade components cost more than $1-2.
@baggedandblown9 жыл бұрын
Say you needed a pacemaker because at any moment in your future your heart may just stop. Would you pay for the expensive one, or the pacemaker that's half the price of the first? Medical devices require a ridiculous amount of R&D, testing ect. This costs a lot for a company, and without some sort of profit, how do you expect them to research and update the technology for future models?
@zawzero9 жыл бұрын
Razor2048 You clearly now how the world works.
@oldman15059 жыл бұрын
Neil Robinson Only if the government buys them.
@hi30843 жыл бұрын
Hey that's in my dad's chest
@JaredReabow9 жыл бұрын
AHEM,, hmmmmmmm, cough cough, AWEweaha wawweaha..... first
@Phrennie9 жыл бұрын
The WITCH put Pat's head in the microwave oven. Around and around it went, its eyes rolled up all crazy. It mouthed the words, "lehhhhttttt meeeeeee owwwwwwtttt." And then it POPPED.
@QOTSAPT6 жыл бұрын
THere's a kid in africa needing one of these 70's pacemakers and you are destroying it. As a mixed black eskimo female size plus transwoman, this offends me.