Bumper Mailbag.
Guest appearance by Sagan
Forum: http://www.eevblog.com/forum/blog/eevblog-813-mailbag/'>http://www.eevblog.com/forum/blog/eevblog-813-mailbag/
SPOILERS:
Sinclair / Thandar SC110 10MHz portable analog CRT oscilloscope form the 1980's!
Makerbeam by Chartup: https://www.chartup.com/index.php?cPath=1_2
A mystery device from a Police auction from Rossin Corporation
10MHz TCXO reference clock generator: http://www.bloguetronica.com/2015/08/gerador-de-relogio-gr10m.html
AST3TQ TCXO datasheet: http://www.abracon.com/Oscillators/AST3TQ.pdf
CC2541 Bluetooth microcontroller datasheet: http://www.ti.com/lit/ds/symlink/cc2541.pdf
Fitbit ripoff teardown
MMA955L Motion sensing pedometer datasheet: http://www.freescale.com/products/sensors/intelligent-sensors-and-sensor-hubs/motion-sensing-pedometer-platform:MMA9555L
Harbour Freight Cen-Tech multimeter teardown!
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Guest appearance by Sagan
Forum: http://www.eevblog.com/forum/blog/eevblog-813-mailbag/'>http://www.eevblog.com/forum/blog/eevblog-813-mailbag/
SPOILERS:
Sinclair / Thandar SC110 10MHz portable analog CRT oscilloscope form the 1980's!
Makerbeam by Chartup: https://www.chartup.com/index.php?cPath=1_2
A mystery device from a Police auction from Rossin Corporation
10MHz TCXO reference clock generator: http://www.bloguetronica.com/2015/08/gerador-de-relogio-gr10m.html
AST3TQ TCXO datasheet: http://www.abracon.com/Oscillators/AST3TQ.pdf
CC2541 Bluetooth microcontroller datasheet: http://www.ti.com/lit/ds/symlink/cc2541.pdf
Fitbit ripoff teardown
MMA955L Motion sensing pedometer datasheet: http://www.freescale.com/products/sensors/intelligent-sensors-and-sensor-hubs/motion-sensing-pedometer-platform:MMA9555L
Harbour Freight Cen-Tech multimeter teardown!
EEVblog Main Web Site: http://www.eevblog.com
The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2
Support the EEVblog through Patreon!
http://www.patreon.com/eevblog
EEVblog Amazon Store (Dave gets a cut):
http://astore.amazon.com/eevblogstore-20
T-Shirts: http://teespring.com/stores/eevblog
Donations:
http://www.eevblog.com/donations/
Projects:
http://www.eevblog.com/projects/
Electronics Info Wiki:
http://www.eevblog.com/wiki/
💗 Likecoin – Coins for Likes: https://likecoin.pro/ @eevblog/dil9/hcq3
Done.
That version of the Harbor Freight is sooooooo out of date, seven years on, the latest 830 derivatives from One Hung Lo have no shunt, no fuse, no buzzer, much smaller motherboard, no solder in the transistor tester area, total danger, perhaps another review is warranted?
Your not so tough now with your kid around 😁
Philips G6 colour televisions had a couple of turns of wire round the line output transformer for the EHT regulation valve heater.
When I started my career as a Home Products Service Technician my first meter cost $29.95 ..
That was in 1973. I made $2.00 an hour. Take home pay was $66.92 a week. Almost half a weeks pay to buy that meter. There were no "cheap" alternatives. Simpson, Amprobe, Triplett. Mine was a UEI made in Japan an M75
Later I upgraded to an M110.($45.00) The M110 had a fused input. I also had an Amprobe RS 3 about the same price. The do it yourselfer gadget was a neon bulb with probes.
$6.99 IN STOCK AT A HARBOR FREIGHT NEAR YOU!
I have a friend who lives near a Harbor Freight. I had them go in to the store every day for over a week, buy a sheet-rock bit from the jug at the counter, and get a free meter. So then I had a multi-meter to give to each kid in my ham radio class.
I have that exact meter and it works ok, definitely not the best out there (far from it!) but it's ok for what I use it for. I measure low voltage and currents with it as well as resistance, as quite frankly I'm kind of afraid it won't end well if I measure anything big with it.
typic dt830 variant multimeter . just got my second one for 1.5 usd.
I'll bet I've had 10 of those free multimeters. Still have a couple. Good for reference, good stocking stuffers.
I'll bet they order them by the millions…
Sagan number one ! Love !
Hansom young lad .. I really respect you for adopting him !!
Ok, definitely time for me to get a new multimeter lol. Mine is exactly this model, at least the casing, but branded as Dick Smith Electronics and probably bought about 20 years ago.
Utter rubbish…I've never had two that measured the same.
Harbor Freight buys weird brand names.
oi, quit knockin me harbor freight multimeter. We use them all the time for quick checks on automotive diag. Work great for that sort of thing.
great video as usual
I wish my dad was like him !
that CTT box don't never gets old, here from Portugal
cute boy
This post was almost as entertaining as Ricki Gervais, and as I love him, this is high praise…lol
Love this post Dave, reminds me of when my boys were young. Hope I meet you one day in Castle Hill Towers as we go there often. Would love to shake your hand…lol.
My father was an Electronics Technician and was almost as good as you are introducing me to the physical universe as you are to Sagan.
Thank you for your authenticity.
Live long and prosper my friend…and if time seems to be passing too fast, remember 88 miles an hour can bring you back…….
My dad used to have a ton of cheap @$$ Radio Shack voltmeters kicking around the house when I was little.
On ebay that red voltmeter is up to 40 bucks.
Crocodile Dundee knife.
I had one of the Harbour Frieght mutimeter for free. It was a piece of garbage. the lead fell off from poor soldering. The meter blown up when i use to measure LV DC 12V but I accidentally left in ohm mode. As you said no protection at all. It is a dangerous tool ! lucky it was free ! now i know why it was free !
افیونو کاک نو
That instruction manual killed me!
Genuinely amazing video :')
That "free" multimeter looks like one I borrowed from a friend to help me fix his friend's TV set. Fortunately it was adequate, and it was just a failed fuse with no obvious cause. I had the set working again in under an hour, including going to a shop for the part. Transistor sockets are definite frippery.
That Harbor Freight meter is certainly not great, but they work ok if you just want to see if batteries are dead.