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In January of this year I bought an old motorcycle, a 1946 Harley Davidson WL. This is a civilian model of a motorcycle that HD made several hundred thousand of during WW II. The engine has two cylinders displacing 45 cu. in., in what they call a "side-valve" configuration, what I've always...
This project was made by my group at Newcastle university in UK. It fades a LED while you are pressing a button. The LED has a red and green colour. It starts from the red colour and fades through several colours to green. Then it starts from red again and so on...
Primary stall sensor.
Under normal forward drive conditions the motor current would flow from positive supply
through the series 2-6 ohm resistor causing a small voltage drop to be seen across it
than through motor and through its drive circuitry to ground.
(I'm so used to analyzing circuits...
This car was made by my group at Newcastle university in UK. It follows the magnetic field of a wire which lies on the floor and carries an AC current.
Here is a video:
http://www.youtube.com/watch?v=StNJlRTWs9k
This is a schematic of a full adder.
Different switch inputs supposed to be 8 pictures. max. is 6 per post.
I wish I could delete fig.1. which didn't show up and replace it with the proper picture.
As the emitter resistor (RE) is increased by 10 ohms at a time
the dc voltage (VC) changes from a lower output voltage to a higher output voltage.
This is due to the fact that as RE gets larger in value less current flows
to RC, therefor voltage drop across RC becomes less so VC rises.
Now...
I will try to add basic circuit designs to this blog.
It will be like a design diary where I will try to explain my methods of designing transistor circuits.
First a little background of my experiance with electronics.
I started out in the 1980's with an interest in learning how to program a...
On HHO.
(A reply I'm tired of retyping)
Yes, HHO can be generated. Yes, it burns. We agree on that much.
The issue is the source of the energy to produce HHO, and the impact on vehicle performance.
A mechanic working on this a bit back calculated an additional 3 HP load on the engine to...
Here are some tutorials I made a while back, covering some test equipment and circuits that all budding EEs will eventually encounter.
PWM (Pulse Width Modulation) tutorial
Oscilloscopes (3 parts)
Function generators
Replacing capacitors
I started out here: http://forum.allaboutcircuits.com/showthread.php?t=22652
with a question about automatic current switching on an electromagnet. Allow me to explain somewhat.
The goal: Detect magnetism and then tell the DC power supplied to an electromagnet to reverse current. Stay in...
This machine drills almond seeds and puts them along a needle. A string is attached on the bottom end of the needle and the seeds move on the string when you take the needle and lift it.
This machine is used to produce a traditional sweet of Cyprus called 'soujioukos'.
The whole process is...
How many guest are using the info on
A.C.C. to rework drawings and info to
get patents. There is big concern that
we are losing control of patents world-
wide.The patent laws mean nothing in
some countries.So how do you monitor
your work. Every one is in the Patent
business.All...
Ampex a reel to reel tape recording company
was one of the most Important companies
that was sold to japan. Ampex also had a wire recorder on the market,It not take off here, but I think the information was used to discover a lot of devises that Japan
hold close,with out giving Information. I...
I was driving insulated small truck,an older
model. The back of the truck had a thick
insulated body with no opennings.The back door was thick with a latch type handle. I stopped quickly in six lane intersection.I
was concerned that the devise I was transporting has hit back of body with
force...
We were about to enjoy the unexpected
dinner of our life.The dinning room had a
Orchestra had about 20 members,it
was in a lower orchestra pit surrounded Brass railing.
The sounds of music filled the room,We
were in an atmosphere of eligances. My wife
ordered Prime Rib,I ordered Lobster,there...
I received An invitation to dinner,hosted by
a electronic company which I was a repair
station. The dinner was at the Fontanbeau
Hotel,which is a famous hotel on Miami Beach,florida.It is in the news all the time
with the names of World leaders. The area
is now famous for being called (SOUTH...
Working every day enjoining life,setting up
color tv's. After starting radio & tv shop,
walking neighbor hood asking if they needed
radio repair. Turned out very good but long hours,starting family. Color t v came along
had to get up speed,became good at setting
color t.v.s,got several good...
