Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
cause I already have to koralia 1's rated at 450gph each. and a "squid" will only switch direction of flow from a direct flowpower head(witch is harder on fish and coral where as it is like a jet of fast moving water) my koralia moves large voulums of water with a wide direction. if you put your...
The constant changing creates different levels of flow at all times. Thrashing the corals/fish around the tank in a more "ocean like" way. The idea is I will make two controllers to run two power heads on opposite sides of the tank, and have them run bipolar of each other eg. When the one on the...
yes. the amount of time it take to go back down to V1 can be the same as the amount of time it take to get to V2. of couse having 4 points of adjustment would work just fine if not perfered, i would not want to over complicate this device. unless there is a schematic already in existance of one...
I cant get a data sheet, where as I cant find one. the current is 310 milliampere. a powerhead is an under water pump that does not "pump" water just simply moves it at a certain flow rate eg 400gph. it is basicaly an imperler that is housed in a cage with no direct flow just a direction of...
so If i take a LM317 and put the adjutment resister from 100 to 2k then it will oporate from 1.7 to just under 12 volt. is there a way to make or buy a sweeping resiter that has an adjustable bottom and top range that can be adjusted for sweep time?
here is a link to a retail unit, ther reson I want to build one is that I think they are way too expensive, and I built a 500k volt tesla coil in my garage when I was a kid. so I was hoping is was up to the chalang of build this...
current is from 0.6 watt to 13.7 watt I want it to contiualy go from the adjustable low point to the adjustable high point, and just loop this in the adjustable time frame, withch I would realy like to have even more range, like from 2 sec to 2 min then up to a couple hours. Idealy I would like...
I have been able to read about the opamps, but the buffer and others i cant google, is there a more specific name for the other parts? and just to add I know nothing about electronics exept how to soider, am I in over my head or is this something that I will be able to read enough about to build?
I am trying to make I timed varyable voltage dc power supply. here what it has to do:
1- vary voltage from 1-12 volts dc.
2- allow me to adjust the top end voltage
3- allow me to adjust the bottom end voltage
4-allow me to adjust how long it take to get from say 2volt to 12 volts(like to...
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