Reddit reviews 12V DC Power Adapter Supply 2.1mm 1A, CCTV

A 12V Power Supply

Simple PC Fan, 12V

PWM Controller

The wall wart will supply 12V with a max of 1A of current. 12V computer fans of that size use at most 0.5A. The PWM controller will control the fan speed. It works by sending out DC pulses, also known as a square wave, of different lengths based on where the knob is set.

To hook up:
There are 4 terminals on the PWM Controller. Look on the bottom to see the polarity. Should be +,- Power and +,- Motor. They're screw terminals so she won't need to solder anything.

Simply hook up the red fan wire to the Motor + terminal, and the black fan wire to the Motor - terminal.

Next, WHILE THE WALL WART IS UNPLUGGED, splice the cable so you have some copper showing at an end. If it has red and black, simply repeat what you did with the fan but use the Power terminals. If the wires are the same color, you can use a multimeter to figure out the polarity.

Schematic

https://www.tindie.com/products/emergentdevices/pc-fan-power-breakout-board/

+ this to power it: http://smile.amazon.com/gp/product/B00452YFZU

seriously, the first thing you need to do is go buy one of these, and get that bulky PC power supply out of there.

Hope this helps
2 12V Photoelectric relays
12V motor
6mm bore pully to match motor shaft
Project box
2 limit switches
Solar panel
Battery
If not solar powered. Aka no solar panel or battery

If you have any other questions let me know I am at work and I will answer what I can on my phone

Edit: I forgot a pully to run the rope from, but the motor I linked has so much torque you could go direct no problem, and lumbar to build the door. I estimated about 10$ for wood. I used all treated, as that's what I had laying around, but its probably not necessary as most of the door on my design was in the coop. I can make you a wiring diagram as well if you are interested. That reminds me you should use 4 zener diodes (just because you only need 4 doesn't mean you shouldn buy a 100 for future projects :) also if you goto an electronics store you will pay 5-6$ for 6 diodes) to stop flash back through the whole circuit from the reversing of polarity with the motor.

I'd pick this up from Amazon - http://www.amazon.com/Power-Adapter-Supply-2-1mm-CCTV/dp/B00452YFZU

You can get barrel to bare lead adapters or cut the cord and make your own.

Any 12vdc supply rated higher than what the fan demands should be fine.

Example: https://www.amazon.com/Power-Adapter-Supply-2-1mm-CCTV/dp/B00452YFZU

Will this work? Can I just cut the end off and splice it onto the tables wires? How do I figure out which wire to splice to which? (Sorry these are probably idiot tier questions - I've never done this before and I saw you worked in a Sanyo shop)

http://www.amazon.com/Power-Adapter-Supply-2-1mm-CCTV/dp/B00452YFZU

Also on the off chance this does need to take a/c power, will hooking up a d/c supply cook the motor?

Edit: As a matter of fact, I just took a look through the "old power adapters" box at work and found two. One is 120v ac to 12v ac - would that work or will the extra four volts cook the table? I also found a 120v ac to 12v DC adapter which I think is pretty much what you describing earlier. Pictures: http://imgur.com/sKkYGeB

I would recommend you buy this and this.

I have a few big bench supplies, but like 95% of the time, you just need a few hundred milliamps at 3.3 or 5v or whatever. Save your capital funds for an oscilloscope.

Yeah, if you need a ton of power at 3.3/5/12v on the cheap, salvaging power supplies out of computers people leave out for the trash man is a good strategy. But most of the time, that's a bad idea.

Are we talking about something as simple as this: https://www.amazon.com/Power-Adapter-Supply-2-1mm-CCTV/dp/B00452YFZU

Makes me wonder why they don't just include this power supply with the preamp instead of the stock one.

From quick look on the end from youtube I imagine a dc wall adapter like this one would work. However this is not a sure fire promise of it working as there are a couple different diameter of dc plugs around.

Thanks to /r/Jim-Jones I found a great product I can use. It was a few amazon suggestions away.

Seco-Larm E-931-S35RRQ Enforcer Indoor/Outdoor Wall Mounted Photoelectric Beam Sensor with 35 Foot Range

and the timer!

Altronix Timer, Multifunction, 12/24VDC

and I can use a 12VDC power supply

[http://www.amazon.com/Power-Adapter-Supply-2-1mm-CCTV/dp/B00452YFZU](Amamax Wall Adapter Power Supply - 12VDC 1A)

Thank you everyone for guiding me. I think this will finally work! I'm excited I finally found the correct parts.

So itll look like this? Imgur

And would this power supply work?
http://www.amazon.com/Power-Adapter-Supply-2-1mm-CCTV/dp/B00452YFZU

http://www.amazon.com/dp/B00452YFZU

Something like this, or basically anything that outputs 12V or 9V.

Fans use ~0.1-0.2 A each, and they can be connected in parallel, so a 12V 1A power supply can power 5-10 of those.

As I said, the issue is converting from that circular plug to something, from which you can convert to one of PC connectors, for which there are adapters and splitters. And doing it without accidentally shorting it.

https://www.amazon.com/Power-Adapter-Supply-2-1mm-CCTV/dp/B00452YFZU

Something like this will be what you need.

Input voltage will obviously be 120v you need the output to be 9-12vdc I believe is the working range of most LED strips. 12v most common. Output amperage for a 12" strip should not exceed 1A. As long as you cover those bases you should be good. If you get the stuff I'm more than happy to help build you a wiring diagram for a switch if you choose

12 volt, max 350mA. Could i wire them in parallel to a 12V 1A supply like this one ?

Thanks for the info(im kind of new to CB so I wanted to ask and see if this kinda of set up would work).Now that you mention dipoles,I was think about getting either the indoor firestik or this[ https://www.gigaparts.com/radiowavz-20dbz.html?gclid=EAIaIQobChMIkMGgybus2QIVk7rACh38LQHWEAQYASABEgIgNfD_BwE ],lets say I get the dipole from the link,would I have to set it up with a mast(s) or could I kinda just run it around the perimiter of my house's roof(kinda hugging it)for ease of setup(it also looks pretty low profile so I kinda thought it was a good idea)






(also can i use this for plugging one of these handhelds to the wall? https://www.amazon.com/dp/B00452YFZU/ref=asc_df_B00452YFZU5373047/?tag=hyprod-20&creative=395033&creativeASIN=B00452YFZU&linkCode=df0&hvadid=198056450525&hvpos=1o11&hvnetw=g&hvrand=7112004044057022446&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9028207&hvtargid=pla-384041315683)