Here is what my dictionary says about the Chinese characters btw. It's written with traditional characters. 戴夫 Dave 信箱 PO Box 奧地利 Australia 臭狗屎 Smelly dog shit 不使用安全 No use of safety 未通過認證 Not passed certification 有毒廢料 Poisonous/toxic waste 我們不關心質量止盈 We don't care about quality only profit 戴夫是真棒非常趣 Dave is really super interesting! 大聲笑 Cashinnate(?) I hope a native speaker can correct me :)

Daaaaaaaaaaave ! Whoever really sent you that Wun-Hang-Low package deserves an honorable special mention in your next video. That was fabulous !

I was laughing so hard when I saw the Wun Hung-Lo tear down :P

it is kind of weird how much we like these mailbag videos... its pretty much like a poor kid watching his neighbors open presents on Christmas morning through the window... knowing he's not getting a damn thing. and ENJOYING IT 0_o

Love the high framerate - not experiencing any blurriness or issues due to the 50fps like others are, so I don't know what's up with their situation. I'd say stick with the HFR :D

fantastic mailbag, the one hour time was brilliant, the quality was superior, the special guest openers were a welcome surprise, and the final segment was pure hilarity. thnx.

A bit of clarification on the role of the antenna on the back of the PenPad. The hybrid chip on the flat flex is the wireless communication device that is used to connect to the USPS mail truck docking system that works on a 2.4 GHz system, encryped using a special (i think 256-bit encryption) connection using WiFi, and the mail truck in turn uses the internet connection provided by one of the major US carriers to reach to a server somewhere. Hope this helps. Btw, in the mail van the dock is for 2 PenPads.

fuck 4k, 50-60 FPS are the future! PS: framerate conversions are bad, decide what framerate you want to use and set all the cameras on that (or at least the half of that). 25 and 50 fps or 30 and 60 fps, not this 25 and 60 with a 50fps conversion.

After view of video, I am agree that Wun Hung Low product is very best. I go fully recommend to people I meet. Very good qualitty.

The Wun Hung Lo segment was amazing, just too funny. I can't believe this is real.

Loved the Wun Lung-Lo! Absolutely hilarious spoof! It instantly brought me back to 1968, sitting around the table with a bunch of ham radio nuts and one guy mentions "one hung low". I had no clue what he was taking about at the time.

Hi Dave. In the MAVO-35 multimeter, the transformer is used for AC current measurement. It is a curent transformer and the different windings are for the different ranges. Sorry for my english! Like your blog and youtube videos. Best to you and family.

impressive design from the wun hung-lo factory

Also notice Wun Hung-Lo sent the letter to Austria, not Australia. I'm going to assume it's a joke, because no one would call out a cold solder joint. I'm really curious what the writing says now. Any translators here?

The Chinese on the paper is "safer is not used", "stinky shit", "not passed certification", "poisonous salvaged material", "LOL", from left to right, from top to bottom. The footer is "stinky shit", "Guangzhou", "Guangdong", "Dave is a good guy", "Very interesting", "We don't give a shit to quality", from left to right. The Chinese translation seems to be an enantiosis, where almost everything contradicts to the English before it.

What Dave is thinking while opening the mail bags: "I wonder what cool thing this might be. Maybe something interesting for teardown to learn from? Or a new calculator for my vintage collection?". And from the look of the face what his wife is thinking while unpacking: "Oh dear, more crap. I'm glad it is not in the garage anymore." :-)

For mailbag and similar videos where camera is stationary and there is not much movement 25 or 30fps is better because at the same encoding size there are less frames so each frame can be of higher quality. For places where you have the cammera hand held or there is a lot of fast movement 50 or 60fps will give better result less motion blur.

50fps HD splendour! Thanks for the eye candy, Dave! :)

Love the way that D9, R12, R13 have been raised from the board for airflow, so essential for cooling

Awesome episode. And Mrs. EVVblog and EVVblog Jr. are both on the show! Brilliant!

The irony is that Mr. Lo's package said "broken electronics" on it.

Hooray - you've finally turned that scope over your left sholder the right way up... It's been bugging me for months :) Cheers!!

This looks sooo much smooth on my TV! thanks Dave!

5:08 one little side note.. the method of detecting ionizing radiation (e.g. Gieger counter or scintillation counter) determines what sort of radiation you're going to detect. For instance, GM is not suitable for detecting gamma-rays and x-rays due to the low efficiency

The Wun Hung-Lo Factory part had me literally on the floor laughing uncontrollably, it was the serious sarcasm that did it! Thanks so much for that Dave, I do love it when people show a sense of humor.

- there's a crocodile in our back yard - let me get my letter opener

Always great to see the family supporting your show!

4k baby,keep it coming love the new quality,image and sound quality superb. Thanks for the hard work,much tech love...

Hey Dave, have the wife open more of the packages...she's much easier on the eyes that YOU! LOL

Regarding electric IMP, there are many things making it a perfect candidate to spy on its user or to get hacked in general. Device can be programmed remotely without device showing any signs of being programmed or requiring someone to physically allow it to happen. Most likely, program is not signed or connection encrypted: device just begs to be hacked. It also seems to work only with electric IMP website. If website disappears you can throw the device out, and if some agency knocks the door of the website's owners, they will get the data and a chance to plant anything they want onto the device. To sum up: what a great device! I bet, NSA is every excited for everyone to start using it.

Loving the 50p. Brilliant and adds a touch more "being there"! Might start upping my own vids in 50p now, as they are shot in that and then rendered to 25fps. Doubles the size I suppose though... Keep up the awesome work mate.

Love the higher frame rate. Keep it going!

50 fps but still out of focus.

LMFAO, love the troll from Wun Hung-Lo. Brilliant.

Thank you for the info about this uRAD project! =)

The 50fps recording is really really nice. Please keep using it :)

PLEASE tell me that Wun Hung Lo segment was a joke from a viewer. Please.

I watch the mailbag videos at 1.25x so there's no cinematic feel in any case :)

Great! Scope in the background is not upside-down anymore! Great mailbag.

Hello Dave and greetings from Romania. I would like to add that i really like your rightful presentation of the Wun Hung Lo product, after watching it I really decided that i`ll use further more their products and would even recommend further use of Wun Hung Lo kinda products in life sustaining systems and medical equipment, their power supplies are the best. No more Astec, Delta, Fluke etc. The Wun Hung Lo product line takes the cake. I am really looking for more Wun Hung Lo reviews in order to keep up with what`s new on the market. Nice Review on good old Mavo 35, back in the day every electronics tech/engineer would have had one Mavo on their workbench. My boy is 5 months old and it seems that he`s staying put with eyes on the monitor looking along with his daddy at your nice tear-down and mailbag sections. Keep up the good work buddy! Cheers to Sagan and all the best there is.

60FPS would be better, since most monitors display at that frame rate, but 50 it a huge improvement over 25. The image looks cleaner, smoother, and sharper. I really wish cinema would move to 60fps. 24fps just looks blurry and choppy to me.

According to the uRADMonitor website the last time your unit sent info was 13-Jun-2015 16:48. Did it break or something?

Getting the point of the written Chinese in the last mailbag is a little hard for the native English speaker, actually the meaning is completely opposite to the affiliated English sentence. He said the Wun Hung-Lo Factory was "crap". Their product quality is very low, not ever certificated. And if the product has quality they have no profit.

Keep up the good work Dave... Mr Wong forgot to tell you that board was on the repair line where Mr sum ting Wong (head of diagnostics) works but it had not been repaired yet. The fault was found in testing by Mr bang flash ow when it was powered up.

Have the impression there is just an additonal transparent protective cover on that multimeter you could take off. But its just an impression watching it on a small smartphone screen 😉

nice rack of test gear in the background.

Thank you for sharing your son helping. You've done a fantastic job! Only a good man could do such a good job.

Dave, Great Mailbag as always. Can you picture Sagan doing hardware reviews just like Dad :) Keep up the good work guys

"designed in california" "made in china" *STOP THIS FOOLISHNESS!*

She should take over - double amount of views! ;-)

The person who designed that range switch had experience with telecomms switching, that looks exactly like a uniselector bank

You guys do know that 50 is the PAL standard right? It's 60 for NTSC and 50 for PAL. His camera is working exactly to spec for his region. Also, KZfaq has region uploading. So, for example, if he uploads a 60 FPS video, KZfaq's servers might just convert it to 50 based on his region.

"Unser Team" simply means "Our Team"

I completely lost it when he opened the charger! I.. have no words. Was he (Mr. Wong).. trolling? That's the only explanation I have..

I'm loving the 50fps! Keep it coming!

"Only our most honorable soldering staff can do this... maximum cooling capacity for the copper" ROFLOL! You give very honorable Mr. Wong much happy feeling with glorious review! ;-)

I'm pretty sure that "Unser Team" just means 'our team' :P

PFFFFFFFFFFFFFFFF you could fucking upload in 10 FPS and i would still watch Cheers Mate!

Watching this in 2017 and remember a rule, an electrolytic cap is normally rated at 3 X the running voltage. so if the cap is 16v then it is a good guess that the device is only 5v.

The framerate was immediately noticable on my big plasma before you mentioned it. good job buddy.

Always the best from the Wun Hung-Lo factory... :P

For the last item you where being sarcastic? Right???

Love the 50/60fps!

60 FPS is actually much better than 25 FPS for video, much much smoother of course! Actual die-hard movie FPS is 24 FPS, which TVs have when viewing blurays in cinema mode, for movie buffs! For your channel, it's waaaaay better! Keep it up, I appreciate your videos a lot! Learn a lot viewing them! Kudos from a French HAM! (I know I'm bit late... :-)) )

I scanned the chinese symbols using a translator app on my phone. The chinese name of the Wun Hung-Lo Factory seems to be "Shit".

On the Wun Hung-Lo letter you missed that on your address it says AUSTRIA :D

The Canon charger thing was absolutely hilarious! Really brightened my day.

50 fps is so smooth that you can feel the nervousness in his hands opening the electronics things!

haha, it was so obviously a joking letter.(大聲笑)means "laugh loundly".And the word in the midile of the bottom means dave is so good and funny.

Dat video thumbnail :3

2:47 60FPS looks clearer and much more easier to the eyes thanks for stepping out of the 25 FPS

High frame rate is nice, but what is even nicer is that the scope in the background is right side up.

I keep laughing on Wun Hung Lo Factory....... hahahha..... that was not gold mine, that was a planted land mine ! The below chinese words yelled "Stinky Dog Poo !"

Wun-Hang-Lo Factory the best money cant buy

I fixed my stuttering problem, my hardware acceleration somehow turned itself on after I turned it off a while back. The new framerate looks great, well worth the extra bandwidth! Thanks for the extra long mailbag today! P.S. I'm in Montana! Nice to see our radiation is around normal ; )

glad to see romanian stuff in your show :D i know it's hard to believe but there are a whole bunch of MAVO-35 multimeters in use in our university laboratories! there is a lot of lab equipments made in comunist ages that is laying around waiting to get in your show or sadly to scrap... just for the records, Romania had an IC and MCU factory in Bucharest, IPRS Baneasa. Nowadays that factory is in ruins (like many others in our country) and the soil around it is filled with toxic substances used in electronic parts making process...

Thats not a knife....

The square display from Lohja corp (Finlux) is an EL-panel. It has no display memory, only row/column drivers. The old VFD display uses a 8 bit parallel interface.

Translation from Chinese: "Dave is awesome Very interesting"

I worked at Norand ~1984-85. It was my first non-consultant job after graduation. I still have in a box the predecessor to the unit you broke down. It is Z80 based. I should send you some pics. I also have of their other equipment. And btw, the predecessor to the unit I have was RCA 1802 based. Good memories.

I'm not an expert with vacuum tubes but I know that at 29:14 that silvery black blob, which is called the getter would have been white. A little info the getter was used to remove the last bit of air out of the tube after it was vacuumed out. It basically metalized the oxygen. It would turn white because it oxidized!

Touch screen graphical user interface in a handheld device with various sensors builtin in 1995, that's very impressive. The Palm Pilot only came in 1996 and had nowhere near the amount of RAM of that thing.

New high frame rate was especially great when you were doing that factory tour and a lot of stuff was moving. Here it is a nice touch, you may just consider if the extra effort is necessary for all the more "stationary" videos. Anyway, it looks great.

That Electric IMP is quite interesting. From a security standpoint, you could lock people out of a device simply by removing the IMP card from the device.

Looks heaps better in 50FPS. Good work.

@ 22:53 I think that's more of a UPS (Buster Brown) delivery scanner. And the card reader was for COD deliveries. The empty bay is a mystery to me. The new ones they use now definitely has cell service, because the second they deliver a package, it updates the tracking to show time of delivery. P.S. Who cares about the frame rates... I just enjoy the content! @ 24:30 Well, that proves what it was meant for. So much for my Buster Brown theory! I never remember the USPS using anything like this back in the day. I'll bet a happy meal, because of its pristine shape, it was only used in the USPS distribution center. And used wireless communication, not cellular... The 1997 year on the screen would be a dead ringer it didn't use cellular, because cell service was VERY expensive back then. The card reader was most likely for the employee to slide their ID when starting their shift. Everything I'm saying is a wild guess, LOL! But if this was used out on a route, it would show A LOT more wear. I've seen UPS delivery drivers where their computer scanners were beat to crap! I'm sticking with my theory it was used in a USPS distribution center...

Even though this video is 2+ years old now, as a CS guy who's always had a not-so-secret love for EE (but no formal education in the latter unless you count the digital-circuit design CE electives I took out of some sick desire to solve an escalating series of multi-variable Karnaugh maps), this is one of the most interesting mailbags I've seen yet. I'm currently working on yet another "big-data" app and I really would love to know what back-end the Geiger counter used (is using?) to store and process all of those data points! I've done systems in the past which do fairly high resolution GPS tracking that "learned" to auto-classify tax-deductible business trips based on collected way-points. I would love to have conversation with these guys about the approach they took in both collecting, and interpreting, all the data coming in.

Wow, i was quite surprised when i've seen that СБМ20 writing on the tube. And yes, this is one old Soviet gamma-ray detecting tube СБМ20 (SBM20) or Исток2 (Istok2), which is still used widely in compact gamma detectors.

Especially at 7:00, I can definitely see the 50-60FPS at work, although my monitor is configured at 60Hz here in the US (surprised that it looks so silky smooth)

I've never heard someone his age from Australia talk before. His accent is so distinctive already.

That's exactly the calculator that got me through my high school maths exams.

The first thing I noticed was the video quality. Then you started talking about the framerate, it looks great.

I think I heard you say "If you want your package fast-tracked, just send it in a big box" :)

I have this Casio FX-31 and also fully working! What a nice piece of calculator :D

i am also from Romania and i also have a MAVO 35 ( just without the red panel ). i'm happy to see Dave tear down something that was part of my childhood and i seriously think of sending some iconic Romanian electronics.

Yay Romania! First item I've seen from my home country since I started watching your videos around about an year ago. If you really did get one earlier I may have missed that episode ! :)

Definitely have seen devices like that NORAND one, they use them to scan packages as delivered, take signatures, and you might be right that the card swiper is for taking payments, I don't think I ever saw that bit used.

That Wun Hung Lo package had me rolling.

50fps looks quite nice. also one of the best mailbags for a long shot. thumbs up to Mrs. eevblog and little Sagan. Loved the part when Sagan pulled out the T-Shirt.

I wanted to know how honorable that charger would have been when a battery is to be connected to it. I'm sure the battery would say: oh your magistrate, to what do I owe this honor?