1456 Results for "《 예약문의 OIO≡⑧④89≡83O⑥》레깅스룸비용㉩강남레깅스룸hearingБ레깅스룸강남레깅스룸선릉레깅스law 선릉레깅스ь레깅스룸비용Ψっ선릉레깅스룸two"

More 2369, with more caps !
Log from Hackaday TTLers
Back to the workshop for the revenge of the return of the son of the Vintage Ring Oscillator ! This time with a new ally : the ceramic capacitor ! TL;DR : it's 60% faster ! But the V/F curve might look different from @Tim 's experiments... As usual,...

From XOR to MUX
Log from Hackaday TTLers
You might remember my musings with the XOR gate with interlocked NPN transistors discussed at Bipolar XOR gate with only 2 transistors But thinking about how XOR is done with pass transistors in CMOS and the structure often creates a MUX, I wondered...

My own try at a RingO9 with 2N2369A
Log from Hackaday TTLers
Edit: See also More 2369, with more caps !With a sporadic and limited access to the workshop (at last !) I can finally try new ideas ! I have meanwhile received 9K PMBT2369 in SMD but I decided to use the old stock of 50pc 2N2369A in metal can, that...

Uploaded PDFs to Git - Small Mods
Log from Arduino-Compatible FPGA Shield
Made a cosmetic change the schematic (top level) and also uploaded PDFs to Git. One small change to PCB was required to get the cost down (increased via hole dia for QFN LDO from 2mm to 2.54mm...makes "low cost" standard mfg avail)

Works first time! :)
Log from Arduino-Compatible FPGA Shield
Boards have been built and worked the first time. Woohoo! Only thing I've noticed so far is that I neglected to tent the vias (cover them in soldermask) under the super small BGA SRAM. This has a nasty effect of making it very hard...

Hacklet #4 - PCB Tools and Wristwatches
Log from Hackaday.io Project
The Hackaday Prize is heating up! When we set up the prize, we expected to see some incredible entries, and you guys haven’t let us down. Projects like SatNOGS, which aims to create a global network of satellite ground stations, or OpenMV, a low-cost...

HACKLET 44 – TEARDOWNS
Log from Hackaday.io Project
Just about every hacker, maker and tinkerer out there received their early education the same way: A screwdriver in one and a discarded bit of electronics in the other. There is no better way to find out how something works than cracking it open and...

HACKLET 52 – BREAKOUT BOARD PROJECTS
Log from Hackaday.io Project
Starting a design with a new part can be hard. What power supply voltage(s) does it need? Are there any support component requirements? What is the footprint? What about the I/O voltage levels? Breakout boards are designed to answer all those questions...

HACKLET 108 – SIMPLE FUNCTIONAL 3D PRINTS
Log from Hackaday.io Project
We featured 3D printer projects on last week’s Hacklet. This week, we’re looking at a few awesome projects created with those printers. Trying to pick great 3D printed projects on Hackaday.io is a bit like staring at the sun. There are just way too many...

Testing the inrush current the quick & dirty way
Log from Mooltipass Offline Password Keeper
I'm guessing that very few of you know that USB certifications impose a very strict limit on a USB connected device's inrush current.What's the inrush current? It is basically the current that a device receives when it is connected to a USB port....

Voltage regulating
Log from Lamp Lamp
Ok, turns out, an op-amp with a transistor don't really make a good voltage regulator. It worked fine for a while, but the transistor got really hot. So i figured, it is temporary anyways (I am waiting for a decent 3.3v regulator), so the worst thing...

HydraBus v1 Rev1.5
Log from HydraBus v1 Rev1.5
HydraBus v1.0 Rev1.5 Schematic/Board Layout are available on github, everything is done with KiCad PCB v6.0.11 HydraBus: Hardware license CC BY-NC 4.0 (for commercial license contact info@hydrabus.com) For more details on the hardware see also http://hydrabus.com/hydrabus-1-0-specifications...

More Turbos
Log from Vacuum System for Deposition
I got another turbo pumps, this time a complete set, pump and controller. It is an Osaka Vacuum TG2003 rated for 2000l/s at 24,000 rpm. It is mag lev like the other pumps I had been trying to get going but a little more friendly. I plan on keeping an...

Gate valve cleaning and installation
Log from Vacuum System for Deposition
I installed the valve today, it was a total mess on the inside. There was a layer of rust coating the inside of the valve body which just should not happen. The entire thing is made from stainless. It must have been from whatever was being pumped in...

More fun...
Log from Vacuum System for Deposition
I have not updated this in a while. Some of the things I have been working on:Calibrate the Film Thickness Monitor. To calibrate the crystal thickness monitor you coat a sample and compare the what the thickness monitor says you coated with what you...

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