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Construction of a power district.From left to right : 4A fuse, 24V indicator bulb, red (right power bus to the direction of travel) , black (left power bus to the direction of travel).
There was absolutely no service at the ranch before Wilson Electronics. The Wilson Electronics Sleek provides service in the Jeep while in the pasture.
TN9 System
electronics
The showcase is totally safe thanks to the key locking system supplied as standard.
Le ante scorrevoli della vetrina Joy sono dotate di serrature di sicurezza a spillo
Electronics = [Brohogan's] DIY Geiger Counter board.
Box: Velleman G1189BC, this is a roomy enclosure with a 9V/2xAA battery space. Currently using 9V NiMH, planning to upgrade to 2xAA + 5V boost converter (in the mail from China).
Buttons: On/Off, sound On/Off, a menu and up/down buttons to change items in menu.
Software is crude, main features are exponential smoothing for CPM and background measurement in menu to compare current measurement with.
The counter has a 1/8"/6.35mm TRS socket for removable probes, currently an SBT11A.
For the challenge at photochallenge.org. Nothing like old tubes for great guitar tone.
Strobist: Bare 285HV @ 1/16 power camera left, bare 540EZ @ 1/16 power at camera right. Sepia done in camera. Added vignette in PS.
Please critique if you have time. For more info: PBPHOTO
I recently got the other nixie tube clock working as it should, also changed it to have a battery backup, and white LED's.
15V, made in China, iHome ITE power supply.
Not working. Unfortunately it looks like the transformer secondary winding is shorted. Pity, I was hoping to reuse the transformer for perhaps a properly regulated supply.
One of the pins had been misrouted in the original design. Easiest fix turned out to be to jumper from one of the output USB ports to the input cable, then do a little scratching to cut the original output route.
Micrographs via Celestron handheld microscope. Electron gun assembly.
More details on CRT manufacture in this Tektronix video (1955): www.youtube.com/watch?v=q5dhfhMItQc&feature=youtu.be
This is what my first generation of irrigation electronics looks
like. I am using a plastic container with clamp on lid to hold the
circuit board and transformer. The small mint tin has a slice in it
so the LEDs can easily be viewed to see just how dry the soil is.
There are four sets of wires running out of the box to the solenoid,
moisture probes, circuit power and transformer power.
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Cracked and Broken Laptop Screen Replacements
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Water Damage Diagnosis
TN9 Systen
electronics
Inclined uprights and full Height bay dividers to create sectors.
La struttura TN9 consente l'installazione di montanti inclinati e divisori a tutta ltezza per separare vari settori merceologici
Photos from an article about some different identifying marks on chips. You can read that article here.
Changed coefficient DACs to the same modern part I am using for position and limit: MCP4922. Results are slightly more linear but there is still distortion on long lines that I need to track down.
Displayed on Tektronix 604. There is also overwhelming EMI on these signals that I haven't tracked down/suppressed.
The PCBs for my nixie tube clock arrived, and I even got twice as many as I ordered! Hurrah for Gold Phoenix.
At any rate after a marathon soldering session they are finally assembled and awaiting testing and programming and all that. The power supply works, and the AVR was programmable, so that's a good sign!
My lifelong quest to get electrocuted continues.
This is an electronics proof of concept for a table lamp that I want to make, it's called "North" and is brighter the closer it is pointing to north.
I was also, rather self-centeredly, thinking about making one that burns brighter the closer it is pointing to the place where I was born, a hospital in Stockholm, although the idea would be that a person would choose a place that means something to them personally, whatever it is.
I'll have to get a little GPS module chip and see if it could work.
Usability wise where the lamps needs to point doesn't really matter as all you would be looking for is to get the right level of light.