All my dumpsters are full of month old McDonald's and Hobos. Your dumpsters are full of salvagable equipment that I can't even afford in the condition it's in. Fly to me to your dumpster, oh trash lord.
yes, and his car came broken from factory - it has the steering wheel on the right side... :) - btw, had to live for a very short period in UK, I didn't dare to drive so I discovered that's a sweet life to have your own driver
My LeCroy 9410 sat in a storeroom at Hughes Aircraft in California for over twenty years, and from what I could gather was probably only used for a year or two. It was in near perfect working order, only needing a DAC gain adjustment. I would like to be able to find a GAL for it to unlock some of the premium features.
48VDC rectifier is from telecom equipment PSU. Almost every radio relay station, GSM (HDSPA, LTE and all others), PMR, PABX and everything around it use 48VDC for power. The point - it's efficient and compact to convert 220 / 110 VAC to 48VDC, and you can put 4 Pb acid batteries and get a 48 VDC. Most of power supplies for telecom can use backup batteries - charge and get power. And those rectifiers are modular and hotswappable. Modern rectifiers can pull through 1200 watts in a 1/8th of a standard 19" rack unit size.
One quick note - the "48V rectifier" you mentioned is likely a part of a DC power plant. These plants would take mains power in and provide clean DC power (48V) out for equipment that uses DC power supplies (in an ISP perspective, routers, switches, etc) - DC plants can be configured to provide hundreds of amps of DC power using multiple rectifiers. These plants also have batteries to provide hold-over power in the event of mains failure - long enough for a generator to start.
Rack mount UPSs use 48v battery backs, and I've also seen large 48-port network switches that have DC inputs. Perhaps it's more efficient to just have a horkin' big 48v DC power supply (with voltage levelling at the individual devices) to power all your racks than to have every device on the racks with their own power supplies?
Yup - I work for an ISP and all of our equipment locations use DC plants to provide 48V DC power for our switches and routers. The plus, I guess is clean DC power to the equipment, the sucky part - the DC power supplies on the switches/routers don't have easy to disconnect power cables (screw lugs). Additionally - in our locations, we have dual DC plants so the equipment has redundant power. (The larger routers actually have 4 or more power supplies - e.g., Cisco 9910 - 4 x 4.4KV 48V DC power supplies, minimum) :)
Why do these large routers need so much power (4.4 kW)? Do they have powerful computers inside, provide PoE for additional networking gear, have optical interfaces with powerful lasers?
Well - the Cisco 9910 I mentioned is a pretty hefty beast. Fits standard 19" rack, but is almost 3ft tall, and fully loaded with Route Processors (2) and line cards (8) weighs in at around 400lbs. And - eash RP is a powerful multi-core processor + lots of custom chips for routing, the line cards also have powerful CPUs + custom chips for the fiber interfaces (16 x 10Gb or 8x100Gb typical per line card) + on the 99xx routers, add in "fabric" cards which control the backplane and manage traffic flow between RPs & linecards. Throughput for the router is in the multi-Tb/s range... they really move data! (and sound like a jet engine when running). - and - the 9910 isn't Cisco's largest - they're just the ones I've played with.
Recycling 10/10 it looks like it's in a Common dumpster that goes to the landfill..?! edit, there is even florescent light bulbs and a xenon (read, led) light bulbs APPALLING and What cost? That should be straight illegal. Shame on you Australia. And EEVDave at least you recycle.. Keep up the good work! :)
I would quite like to see you dismantle that 40A battery charger thing and figure out what’s wrong with it, and also measure the capacity and estimate whether the battery is screwed and talk about internal resistance
I guess no, but that doesn't seem like a common dumpster, more like a construction one. I assume they will sort the waste when they remove the dumpster.
Got it, thanks. I'll look into what's in my area that could be promising. I sure hope we're going to get a look inside some of this stuff, or maybe a repair video :)
Same problem. The only things I can get occasionally are typical household stuff. (Not from a dumpster btw. My father rents a bit of space to some people and they throw their stuff to our old metal collection.)
looking very much like this company was into broadcasting equipment maintenance. The 48v switchtech power supply is quite common in that field (though that model is being phased out) Note that when hooked up to batteries it will run a positive earth.
Wow, must be a happy bastard who scored free HP 8753A VNA, HP 8350 Sweepgen and HP 8405A VectorVoltmeter along with Spellman HV PSU on top and Phillips Pulsegen on the right. HP 8752A VNA in second pic is even better.
I wish I had such finds here, not that I have the space! Did get a bunch of various cool old stuff from my time working in the computer lab at a place that also did recycling, so many schools cleaning out old storage rooms and sending truckloads of stuff in! Which is part of the reason I have no space! XD I'd love to have had those toroids, maybe one would fit the crappy chinesium power-supply I have that the thermal fuse in the transformer died! (I should probably just part it out)
Nice call on that ground wire being connected to the top of the toroid so it forms a single turn. Definitely a no-no. I suppose it's possible the lug is not connected to the chassis below but seems unlikely. This old gear really are now boat achors. They turn up at hamfests all the time and sell for practically nothing.
Wow, that hp gear is still used in schools and labs in my country. It is only kind of gear that is fairly decent in schools because all of the new stuff is siglent or instek junk.
My daughter called and told me about two lawn mowers and two lawn sprinkler tractors sitting out by the road. The lawn tractors are very expencive. Both mowers are repairable and sellable. I will put them away now as it is fall. I can typically make between $60-$100 for each mower. The lawn tractors run about $89 so I can sell them for $50 each.
In the US there'd be a pretty good chance of the police getting called for raiding a dumpster like this without permission... and you can't get permission because companies fear liability. Australia seems like a wondrous land at this point... sunshine, reasonable laws, and attractive women with interesting accents :)
Actually it's legal in the US (unlike in the EU, I believe). Just do it covertly and quickly to avoid having to potentially deal with a police check, grabbing the most valuable items first.
Do you Aussies not have electronics recycling, or something? If the garbage collectors in my area saw a dumpster full of electronics, they'd refuse to take it, because we DO have free electronics recycling.
So being a dumpster diver what do you think you'll get for a profit ??? You can't even verify they're any good even if you knew someone who did how much profit will be theirs ??? Obviously it's going to be short...better read up on their value with broken parts cause you can't be sure what you have accept they're not cheap to buy !!! Or repair !!!!!
Yeah, I would try to get that whole container with me, so much nice stuff and what is not possible or too expensive to repair still contains many nice parts that are hard to find or too expensive for most, like those two transformers or even the rack cases.
I feel you, I would repair and repurpose the whole lot! It's fun because it adds a lot of creativity to the technicality of repairing, designing and building electronics. And it helps waste recycling too~ I already scour second-hand websites and stores for stuff that people want to throw away, but man a dumpster like this is not something I can ever imagine happening here...
Historically this said company would list their old stuff on ebay for ages before putting in the bin. Never sold well. Not worth the effort of their own staff reconditioning this stuff for sale. I
If I ever found or was told about something like this I would need either a massive uhall or a dump truck sixzed truck to talk it all home. I love messing around with old school equipment
All my dumpsters are full of month old McDonald's and Hobos. Your dumpsters are full of salvagable equipment that I can't even afford in the condition it's in.
Fly to me to your dumpster, oh trash lord.
🤣🤣🤣
I want to live in that dumpster
I don't see anything worth keeping.
Be careful what you wish for!
haha well said
Like a candy store for adults... I like it!
Dave, you are driving on the wrong side of the road!
Everyone is driving on the wrong side of the road, so everything is fine.
yes, and his car came broken from factory - it has the steering wheel on the right side... :) - btw, had to live for a very short period in UK, I didn't dare to drive so I discovered that's a sweet life to have your own driver
And so fast too!
The correct side of the road!
U should come were i live you drive in the middle the roads are so small lol
Did anybody feel disappointed Dave didn't plug it in.
You know the mantra. Don't turn it on, take it apart!
It was already taken apart though.
there something missing on the back, wires are cut
Yeah.. said DC fuse on the back. Have to tie those wires together if you wanted to use it, I'd guess.
BlackEpyon judging from missing fuses, plugging it in couldn’t have turned it on, and perhaps even torn it apart.
I wonder who was the lucky one that got the network analyzer? If he's from Sydney area maybe a viewer of the channel?
Yes, a viewer.
Woohoo! Looking forward to seeing inside of all this gear!
Mixed dumpsters with electronics in them? In 2018? What's stopping people from recycling?
why are dumpsters a thing even
cost
krattah im sure they could of even given these to schools for free, even though these things are old they’re still better than NOTHING.
A dumpster like this would most likely be sorted and recycled.
Yeah i really was missing a Siemens 200Hz-18Mhz Level Oscillator in school...or some old af Sweep gen...
wait no, i didnt.
So many components if nothing else.
yeah for sure. not cheap ones either.
Some nice looking meters for the used parts shelf
Awesome grab! Can't wait fot the teardowns and repairs :-)
Wow! Dumpster heaven!
Makes me warm and fuzzy to see you rescue this stuff from a landfill! Most of that stuff is at least worth it's weight in scrap
Dave is taking dumpster diving to a whole new level!!!
Que bela sucata! Em Portugal não se encontra nada disto.
My LeCroy 9410 sat in a storeroom at Hughes Aircraft in California for over twenty years, and from what I could gather was probably only used for a year or two. It was in near perfect working order, only needing a DAC gain adjustment. I would like to be able to find a GAL for it to unlock some of the premium features.
" I would like to be able to find a GAL" :P
Nice to find other dumpster divers 👍
Love the Marconi TF! Good grabbing Dave.
*That jitter generator/BERT is a nice unit. I used to have one. It also makes a very good clock source, as it's very clean.*
Dave, if you need to toss some of the stuff you get because of running out of space, please toss it into my dumpster pls ! lol
I love finging these new channel s im a irish scaper dumpser diver and for me i learn more and more from these
Wish I could find a skip full of stuff like that! I noticed STC and Telecom badges on some of the equipment. Quite interesting!
oh i was really disappointed with the noscopes until that tek 475, brilliant
48VDC rectifier is from telecom equipment PSU. Almost every radio relay station, GSM (HDSPA, LTE and all others), PMR, PABX and everything around it use 48VDC for power. The point - it's efficient and compact to convert 220 / 110 VAC to 48VDC, and you can put 4 Pb acid batteries and get a 48 VDC. Most of power supplies for telecom can use backup batteries - charge and get power. And those rectifiers are modular and hotswappable. Modern rectifiers can pull through 1200 watts in a 1/8th of a standard 19" rack unit size.
One quick note - the "48V rectifier" you mentioned is likely a part of a DC power plant. These plants would take mains power in and provide clean DC power (48V) out for equipment that uses DC power supplies (in an ISP perspective, routers, switches, etc) - DC plants can be configured to provide hundreds of amps of DC power using multiple rectifiers. These plants also have batteries to provide hold-over power in the event of mains failure - long enough for a generator to start.
Rack mount UPSs use 48v battery backs, and I've also seen large 48-port network switches that have DC inputs. Perhaps it's more efficient to just have a horkin' big 48v DC power supply (with voltage levelling at the individual devices) to power all your racks than to have every device on the racks with their own power supplies?
Yup - I work for an ISP and all of our equipment locations use DC plants to provide 48V DC power for our switches and routers. The plus, I guess is clean DC power to the equipment, the sucky part - the DC power supplies on the switches/routers don't have easy to disconnect power cables (screw lugs). Additionally - in our locations, we have dual DC plants so the equipment has redundant power. (The larger routers actually have 4 or more power supplies - e.g., Cisco 9910 - 4 x 4.4KV 48V DC power supplies, minimum) :)
Why do these large routers need so much power (4.4 kW)? Do they have powerful computers inside, provide PoE for additional networking gear, have optical interfaces with powerful lasers?
Well - the Cisco 9910 I mentioned is a pretty hefty beast. Fits standard 19" rack, but is almost 3ft tall, and fully loaded with Route Processors (2) and line cards (8) weighs in at around 400lbs. And - eash RP is a powerful multi-core processor + lots of custom chips for routing, the line cards also have powerful CPUs + custom chips for the fiber interfaces (16 x 10Gb or 8x100Gb typical per line card) + on the 99xx routers, add in "fabric" cards which control the backplane and manage traffic flow between RPs & linecards. Throughput for the router is in the multi-Tb/s range... they really move data! (and sound like a jet engine when running). - and - the 9910 isn't Cisco's largest - they're just the ones I've played with.
Thank you. These machines are some beasts indeed.
At 5min that is a wave guide trap for 3-4 Ghz, what a treasure, it has the lid off,
Can't tell you where it is, but every piece has an Alcatel Australia inventory sticker on it. ;)
acatel must have sold it to where Dave got it
Dave's teardown videos 👍👍👍👍👍
Recycling 10/10 it looks like it's in a Common dumpster that goes to the landfill..?! edit, there is even florescent light bulbs and a xenon (read, led) light bulbs APPALLING and What cost? That should be straight illegal. Shame on you Australia. And EEVDave at least you recycle.. Keep up the good work! :)
Thought they were high pressure mercury bulbs, and some broken fluorescent tubes as well. Sure freaked me out a bit.
I would quite like to see you dismantle that 40A battery charger thing and figure out what’s wrong with it, and also measure the capacity and estimate whether the battery is screwed and talk about internal resistance
Are they legally allowed to throw these in a dumpster in Australia? I figured those old electronics would be full of lead.
We're supposed to use e-recyclers which it suposed to stop it going to land fill but I'm not always convinced...
I guess no, but that doesn't seem like a common dumpster, more like a construction one. I assume they will sort the waste when they remove the dumpster.
@@petertiggerdine2631 Electronics go to landfill? How shall it rott there??
They supposed to remove the various elements out and recycle them back to smelting.
What kind of buildings would have stuff like this in their dumpster? Seriously, where should I be looking? This is absolutely glorious.
It's a very specific company that needs this sort of stuff.
Got it, thanks. I'll look into what's in my area that could be promising. I sure hope we're going to get a look inside some of this stuff, or maybe a repair video :)
Could be any company that does their own EM/compliance testing, some of it's clearly for that. The rest of the gear is too odd ball to narrow it down.
"I don't know what that is, but I want it", he says.
Is there a good place to get informed about this sort of thing? I need to get salvaging to help flesh out my lab but I don't know where to hunt.
Same problem. The only things I can get occasionally are typical household stuff. (Not from a dumpster btw. My father rents a bit of space to some people and they throw their stuff to our old metal collection.)
soooo jealous!
At 4:32 there even is a big Li-Ion battery. I'm pretty sure it's illegal to toss those in the dumpster in most countries.
at 3:18 I recognise a piece of kit for a project I was involved in.
dave just hit the goldmine, youtube content for a whole year.
Hell of a haul, Dave!
All I've ever found in dumpsters was dump!
You have MUCH better dumpsters than we do... :)
looking very much like this company was into broadcasting equipment maintenance. The 48v switchtech power supply is quite common in that field (though that model is being phased out) Note that when hooked up to batteries it will run a positive earth.
Wow, must be a happy bastard who scored free HP 8753A VNA, HP 8350 Sweepgen and HP 8405A VectorVoltmeter along with Spellman HV PSU on top and Phillips Pulsegen on the right.
HP 8752A VNA in second pic is even better.
Hope the faithful old Tek is still working. Some great dumpster diving.
It has a faulty sticker on the side.
You are so lucky living in Australia...
I was really looking forward to you having Ben Heck go through the dumpster at your work for the summer. Did things not work out?
Where do you get all of these awesome tip offs from?
I wish I had such finds here, not that I have the space! Did get a bunch of various cool old stuff from my time working in the computer lab at a place that also did recycling, so many schools cleaning out old storage rooms and sending truckloads of stuff in! Which is part of the reason I have no space! XD I'd love to have had those toroids, maybe one would fit the crappy chinesium power-supply I have that the thermal fuse in the transformer died! (I should probably just part it out)
Even if the electricity in the house is wired correctly, shorting ground and neutral would trip any RCD.
I want to have a dumpster like that!!!
I bet this mystery white box with outlet has some li-ion batteries and some small dc to ac converter.
4:21 that black 500VDC power supply could be interesting.... :D
I think the EU sockets are weird. We have the neutral ground but the plugs work both ways...
Did you ever find anything in a dumpster which you custom made maybe many years ago?
Oh, I can't wait to see the usb power point tear down.
Nice call on that ground wire being connected to the top of the toroid so it forms a single turn. Definitely a no-no. I suppose it's possible the lug is not connected to the chassis below but seems unlikely. This old gear really are now boat achors. They turn up at hamfests all the time and sell for practically nothing.
In some countries this trash bin would be empty in no time..
Cor.. some of that gear would be worth having just for the chassis and parts alone!
As always nice dumpsters so thumbs up with a bit of envy lol.
"I can't turn down a dumpster!" - Dave Jones, 2018
48v rectifiers are used in telecom. its what phone companies use
Wow, that hp gear is still used in schools and labs in my country. It is only kind of gear that is fairly decent in schools because all of the new stuff is siglent or instek junk.
Mouth watering
Everytime I pick up my multimeter, I swear to God I hear Dave's voice in my head - I watch too many multimeter videos from Dave!!
Seek professional help.
have to guess an old Telstra Lab where they did R&D once upon a time
My daughter called and told me about two lawn mowers and two lawn sprinkler tractors sitting out by the road. The lawn tractors are very expencive. Both mowers are repairable and sellable. I will put them away now as it is fall. I can typically make between $60-$100 for each mower. The lawn tractors run about $89 so I can sell them for $50 each.
Do you receive the custom LCD ?
Good to see we take e-waste seriously in Aus :( Nice find Dave!
Wow
Do you have to pay to get that out of the dumpster?
It's. A pat tester ,
Nice 1 DJ!
Take it all to the bunker ! And dont leave the chart recoder !
Got it.
I am a LiIon fanboy and I am upset that you didnt take those batteries...
You should of gotten the big light bulb.
Maybe you can find the HP ADC manual in there. I'd say snake eyes DOOH.
Was the other channel with Ben Heck just an April Fool's joke or is that still coming? I thought to ask here as the topic is similar.
But... But... But... Did that 500v PSU actually work?
Here I am... still trying to find a printer to mess with : (...
I would really love to know the etymological origin of the term "come agutsa".
Rode audio shut a shop down
The title should be: "Dave gets served divorce papers after bringing home 'more junk'..."
Sorry hon, this is my job! She can't argue with that!
Third World problem: it would be pretty rare to find these kind of stuffs in the trash.
What's the Platypus at 8:10?
I won't leave anything that has any electric motor in it.
come on Dave power it up
your got to plug it in
if only to see them big meters bouncing 🤪
FUN
You go to any ham fests?
In the US there'd be a pretty good chance of the police getting called for raiding a dumpster like this without permission... and you can't get permission because companies fear liability. Australia seems like a wondrous land at this point... sunshine, reasonable laws, and attractive women with interesting accents :)
All true.
Actually it's legal in the US (unlike in the EU, I believe). Just do it covertly and quickly to avoid having to potentially deal with a police check, grabbing the most valuable items first.
Do you Aussies not have electronics recycling, or something? If the garbage collectors in my area saw a dumpster full of electronics, they'd refuse to take it, because we DO have free electronics recycling.
Mate you’re driving on the wrong side of the road
Also allways wondered if taking stuff in the dumpster is legal. I would imagine if it wasn’t he would pentagon take it. 😎😎😎😎😎😎😎😎😎😎😎
The company in question said it's fine.
Хорошая свалка
So being a dumpster diver what do you think you'll get for a profit ??? You can't even verify they're any good even if you knew someone who did how much profit will be theirs ??? Obviously it's going to be short...better read up on their value with broken parts cause you can't be sure what you have accept they're not cheap to buy !!! Or repair !!!!!
5th one!
Did you know y'all are driving on the wrong side of the road?
Wow, so much gear that could be rescued! And here I am struggling to find suitable items to BUY to make repair videos on!
So much waste, when it could be serviced and resold
Yeah, I would try to get that whole container with me, so much nice stuff and what is not possible or too expensive to repair still contains many nice parts that are hard to find or too expensive for most, like those two transformers or even the rack cases.
I feel you, I would repair and repurpose the whole lot! It's fun because it adds a lot of creativity to the technicality of repairing, designing and building electronics. And it helps waste recycling too~
I already scour second-hand websites and stores for stuff that people want to throw away, but man a dumpster like this is not something I can ever imagine happening here...
Historically this said company would list their old stuff on ebay for ages before putting in the bin. Never sold well. Not worth the effort of their own staff reconditioning this stuff for sale. I
The dumpster i go to has smart tvs washing machines etc enough to furnish a house
Whoa i woulda grabbed those toroidals for sure! Awesome pile of crap !! I used to love dumpster diving back in the day
Yes i wouldve taken them definitely. They looked like pretty powerful ones.
Being toroidial, winding additional secondaries is easy too.
those are not cheap...seemed like pretty big beefy ones too!
Don't worry-somebody probably came along after Dave and picked them up.
When I was a kid, I would literally dream about stuff like this.
If I ever found or was told about something like this I would need either a massive uhall or a dump truck sixzed truck to talk it all home. I love messing around with old school equipment