| Headset with aux input circuit board |
Asked by Wanntrepreneur, Yesterday 02:28 PM in Electrical Engineering
I bought an aviation headset from China that works great until you plug in an aux source such as music from an iPhone / iPod / iPad.
| Rotary switch question |
Asked by frmig, Jan 14, 2017 11:30 AM in Electrical Engineering
This shouldn’t be that hard but I can’t figure it out.
I have an old European combination woodworking machine with three separate and identical...
| Bulding current limiter? |
Asked by notthebrightest, Feb 21, 2017 03:26 AM in Electrical Engineering
I'll describe the issue I'm having, since maybe there is a commercial product I can buy that won't be mistaken as a bomb as I travel through air port...
| Measurement Sample Data |
Asked by raazi91, Feb 23, 2017 06:09 AM in Electrical Engineering
Hi, I am looking for some sample measurement data of devices like Volt, Current, Power and Energy meters. I want to obtain statistical information...
| Please can anyone help me out with this project topic |
Asked by aguero25, Feb 22, 2017 03:09 AM in Other Engineering
What are the effect of guinea corn husk ash on the mechanical and water absorption properties of epoxy matrix composite
| Schedule 40 |
Asked by batal009, Oct 15, 2008 04:30 AM in Mechanical Engineering
What is schedule 40?
| Do I need an IS enclosure if the electrical components are already IS |
Asked by gfriske, Jan 17, 2017 12:38 PM in Electrical Engineering
I have electrical items that are UL rated for class 1, div 2 a-d. I need them in an area that is class 1, div 2 group c. Can I just use any Nema 4x...
| Equipment grounding in Antarctica |
Asked by micale24, Jan 10, 2017 05:07 AM in Electrical Engineering
I'm airfield systems tech at McMurdo Station, Antarctica. My issues is the grounding of the electronics that are located on a 200-300 meter thick...
| Can we construct a light bulb that matches the sun's blackbody spectrum? |
Asked by TShackel, Jan 5, 2017 06:32 PM in Electrical Engineering
Hi, I have a question for electrical engineering experts about light bulbs and producing one most like the solar blackbody spectrum. I understand...
| Transmission line impedance matching and frequency changes |
Asked by portablevoid, Dec 27, 2016 06:24 AM in Electrical Engineering
If we have a certain transmission line at f0 , it has a load at its end ZL=R+jX then we insert a quarter wave transformer at the first position of...
| DImming |
Asked by ddddd1234, Dec 16, 2016 07:53 AM in Electrical Engineering
I have a problem with dimming lights
1) house is 2 story and 1 family with basement
2) i Have a 100 amp panel[/SIZE]
3) I showed this problem to...
| 3 phase 3 wire 240v old system all 3 phases to ground |
Asked by Joewat, Dec 8, 2016 10:26 AM in Electrical Engineering
I had to put a 5 jaw meter securely back on pole it's a 3phase 3 wire 240v no ground from transformer. So Pg&e shut of power I secured box and tested...
| Is thwn rated at 600V both ac and dc? |
Asked by Louisa 9999, Nov 27, 2016 01:43 PM in Electrical Engineering
Installing a solar system panels to power optimezers combined string out put is less than 500v dc Is thwn rated for dc?
| Can a power tool designed for 220V 60hz be used on a 230V 50hz power source safely? |
Asked by s3rialthriller, Nov 28, 2016 02:54 AM in Electrical Engineering
I would like to purchase a specific power tool (Groove cutter) not available in my country but would like to import it from a country were the power...
| Physics |
Asked by 75676rytjfj, Nov 23, 2016 05:56 PM in Mechanical Engineering
For lunch, you and your friends decide to stop at the nearest deli and have a sandwich made fresh for you with 0.120 kg of turkey. The slices of...
| Root cellar |
Asked by Heidee91, Nov 21, 2016 06:41 PM in Civil Engineering
I'm wanting to build a 12'x12' root cellar out of foundation grade treated lumber. The walls are 2x8 construction 16" o.c. sheathed in .75" plywood. ...
| If we alter the connection between T1 and gate of a TRIAC (BT139 600E) then what migh |
Asked by rumman_bd, Oct 8, 2016 09:36 AM in Electrical Engineering
In a Ceiling Fan Speed Regulator circuit by mistaken T1 and Gate connection is altered but regulator is still working good. Fan speed can increased...
| What is the ripple effect of different Mobile charger on lithium ion battery ? |
Asked by rumman_bd, Oct 7, 2016 11:34 AM in Electrical Engineering
In Market there are different kind of charger like mobile chargers that are provided with mobile, USB Wall Charger, Travel adapter. All these...
| Proper thickness of different copper items normally used in Electric switch and socke |
Asked by rumman_bd, Oct 4, 2016 01:57 PM in Electrical Engineering
When I open the plastic casing of electric switch and socket normally used in household like (250 V AC 16 A Switch , 250 V AC 13 A Socket) then I...
| Msc scholar ship for mechanical engineering students |
Asked by getnet wale, Sep 20, 2016 04:21 AM in Mechanical Engineering
I want a tuition free Msc scholarship in mechanical ingineering. I have Bsc in mechanical ingineering from jimma university institute of technology, ...