omniomni/omni-engineering huggingface dataset:
Schematic capture. Schematic capture or schematic entry is a step in the design cycle of electronic design automation (EDA) at which the electronic diagram, or electronic schematic of the designed electronic circuit, is created by a designer. This is done interactively with the help of a schematic capture tool also known as schematic editor.

The circuit design is the first step of actual design of an electronic circuit. Typically sketches are drawn on paper, and then entered into a computer using a schematic editor. Therefore schematic entry is said to be a front-end operation of several others in the design flow.

Despite the complexity of modern components – huge ball grid arrays and tiny passive components – schematic capture is easier today than it has been for many years. CAD software is easier to use and is available in full-featured expensive packages, very capable mid-range packages that sometimes have free versions and completely free versions that are either open source or directly linked to a printed circuit board fabrication company.

In past years, schematic diagrams with mostly discrete components were fairly readable. However, with the newer high pin-count parts and with the almost universal use of standard letter- or A4-sized paper, schematics have become less so. Many times, there will be a single large part on a page with nothing but pin reference keys to connect it to other pages.

Readability levels can be enhanced by using buses and superbuses, related pins can be connected into a common bus and routed to other pages. Buses don't need to be just the traditional address or data bus directly linked pins. A bus grouping can also be used for related uses, such as all analog input or all communications related pin functions.

Other considerations
After the circuit design is captured in a schematic, most EDA tools allow the design to be simulated.

Schematic capture involves not only entering the circuits into the CAD system, but also generally calls for decisions that may seem more appropriate for later in the design, such as package choice. Although you may be able to change the package later, many PCB CAD systems ask you to choose both the part and package when placing it into the schematic capture program.

This also brings into play such considerations as prototyping and assembly. In a high-volume assembly environment, there will be plenty of opportunities for DFM analysis. However, in a rapid prototyping environment such as at assembly houses specializing in low-volume/high-mix and quick turnaround times, the pick and place machines are programmed directly from the board layout files. Careful package selection during schematic capture will save time during the assembly and debug process.

With new parts, the CAD system may not have your chosen component in its parts library, so you may need to create the parts library yourself. Again, you may at the time not be overly concerned with the package, but careful creation of the part library will save time and risk later.

See also 

 Comparison of EDA software

Further reading

References

Electronic design automation
Schematic editor. A schematic editor is a tool for schematic capture of electrical circuits or electronic circuits.

Schematic editors replaced manual drawing of schematic diagrams, but they still retain the capability of outputting schematics on specially formatted sheets. At the same time modern schematic editors capture schematic data in a way suited for automatic processing by further stages of the design cycle.

Besides basic drawing and visualization capabilities, modern schematic editors typically provide the following capabilities:
 Capture electrical properties and other attributes of components, wires, nets and pins.
 Hierarchical way of design.
 Generate netlists and other common representations of the designed circuit from schematic.
 Generate documentation.
 Generate Gerber files to CAM.
 Libraries of standard components.
 Automatically detect and report errors in the schematic.
 Input designs from various formats, such as VHDL, Verilog, EDIF.

They are also used for prototyping and test circuits before create them in real life.

See also 
 Comparison of EDA software
 Comparison of computer-aided design editors

References 

Electronic design automation
Rokal. ROKAL is an acronym for RObert KAhrmann Lobberich, a manufacturer of metal castings that produced a line of model railway equipment in TT scale from 1947 to 1969, based in Lobberich 80 km north of Cologne, Germany at the Dutch border.

The Rokal product line was sold to Willy Ade of Röwa. Röwa issued at least one catalog that included items from the Rokal product line, but apparently only sold existing inventory from the Rokal purchase rather than manufacturing these items. Ade later sold his company to Roco of Salzburg, Austria and the Rokal TT line was not issued again.

The Rokal product line was of slightly different proportions from other TT scale lines. In later years of production, Rokal worked in joint venture with firms located in the former country of East Germany. The products of these companies were offered by Rokal with the Rokal style coupler and offered in their own product line with their proprietary coupler. These companies apparently used the same set of manufacturing tooling, marketing these items under names such as Zeuke, Zeuke & Wegworth, Berliner TT-Bahnen (now Tillig) and possibly others.

External links
 webpage by Rokal Friends Lobberich, in German language
 A ROKAL enthusiast's website

Model railroad manufacturers
Toy train manufacturers
Model manufacturers of Germany
AEG B.I. The AEG B.I was a German two-seat biplane unarmed reconnaissance aircraft produced in very small numbers in 1914. It formed the basis for the more successful B- and C-type aircraft from AEG.

Operators

Luftstreitkräfte

Specifications (AEG B.I)

See also

External links

AEG B.I at the Virtual Aviation Museum

B.I
Single-engined tractor aircraft
Biplanes
1910s German military reconnaissance aircraft
Aircraft first flown in 1914
Aircraft with fixed conventional landing gear
Single-engined piston aircraft
AEG B.II. The AEG B.II was a two-seat biplane reconnaissance aircraft produced in small numbers from 1914. It was a slightly smaller version of the B.I and proved more successful. They were used in limited numbers throughout 1914 to 1915, but were quickly replaced, as they were often derided for lack of speed and armament.

Operators

Luftstreitkräfte

Specifications (AEG B.II)

See also

References

External links

AEG B.II at the Virtual Aviation Museum

Biplanes
Single-engined tractor aircraft
1910s German military reconnaissance aircraft
B.II
Aircraft first flown in 1914
Aircraft with fixed conventional landing gear
Single-engined piston aircraft
AEG B.III. The AEG B.III was a German two-seat biplane reconnaissance aircraft produced in very small numbers from 1915. It was a further refinement of the B.I and B.II, with a fresh tailplane assembly, but was still only just adequate in performance and did not attract much interest. The B.III was put into reconnaissance and training roles in 1915, but was soon replaced by armed aircraft in the German military.

Specifications (AEG B.III)

See also
 Aerial reconnaissance
 Surveillance aircraft

References

External links
AEG B.III at the Virtual Aviation Museum

Single-engined tractor aircraft
Biplanes
1910s German military reconnaissance aircraft
B.III
Aircraft first flown in 1915
Aircraft with fixed conventional landing gear
Single-engined piston aircraft
AEG C.I. The AEG C.I was a two-seat biplane reconnaissance aircraft produced in small numbers from March 1915 by the German company Allgemeine Elektrizitäts-Gesellschaft (AEG). It was essentially an AEG B.II armed with a single 7.92 mm (.312 in) Parabellum or Bergmann (rarely) machine gun mounted at the rear of the cockpit for the observer and a more powerful engine. The Benz engine increased maximum speed to a more respectable 130 km/h (81 mph). By October 1915, it had begun to be replaced by the AEG C.II.

Specifications (AEG C.I)

See also

References

Further reading
 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910-18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914-18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001, 

Biplanes
Single-engined tractor aircraft
C.I
1910s German military reconnaissance aircraft
Aircraft first flown in 1915
Aircraft with fixed conventional landing gear
Single-engined piston aircraft
AEG C.II. The AEG C.II was a German two-seat biplane reconnaissance aircraft produced in small numbers from October 1915. It was a slightly smaller version of the C.I with better performance, redesigned cockpit for both pilot and observer/bombardier, new rear mounting for a 7.92 mm (.312 in) Parabellum MG14 machine gun, and the ability to carry four 10 kg (22 lb) bombs for light attack duties.

Only one C.II was shown in German front inventory, on 30 April 1916.

Operators

Luftstreitkräfte

Specifications (AEG C.II)

References

Further reading

 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910–18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914–18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001, 

1910s German military reconnaissance aircraft
C.II
Single-engined tractor aircraft
Biplanes
Aircraft first flown in 1915
AEG C.III. The AEG C.III was a two-seat biplane reconnaissance aircraft, a single prototype of which was built during World War I. The aircraft featured an unusual fuselage design that completely filled the gap between the upper and lower sets of wings, to provide the pilot with improved vision, and to allow the observer a wider field of fire for his 7.92 mm (.312 in) machine gun. The pilot sat to the rear of the observer, who was stationed over the upper wing. This design was not as successful as had been hoped, and the C.III was never entered into service. Despite being heavier than the C.II, its maximum speed increased to 158 km/h (98 mph).

Specifications (AEG C.III)

See also

References

Further reading

 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910-18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914-18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001, 

C.III
Biplanes
1910s German military reconnaissance aircraft
Single-engined tractor aircraft
Aircraft first flown in 1915
AEG C.V. The AEG C.V was a prototype two-seat biplane reconnaissance aircraft of World War I. Designed to use a more powerful engine than previous AEG C-class reconnaissance aircraft, results were disappointing enough that further development was cancelled.

Specifications (AEG C.V)

See also

References

Further reading

 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910-18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914-18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001, 

C.V
Single-engined tractor aircraft
Biplanes
1910s German military reconnaissance aircraft
Aircraft first flown in 1916
AEG C.VII. The AEG C.VII was a prototype two-seat biplane reconnaissance aircraft of World War I. It was developed from the C.IV but did not enter production. The C.VII was tested with two different wing arrangements, one with slightly tapered single bay wings and another with sharply swept upper wing.

Specifications (AEG C.VII)

See also

References

Further reading

 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910-18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914-18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001, 

C.VII
Single-engined tractor aircraft
Biplanes
1910s German military reconnaissance aircraft
Aircraft first flown in 1916
AEG C.VIII. The AEG C.VIII was a prototype two-seat reconnaissance aircraft of World War I. 
Two examples were built, based on the successful C.IV design, one of biplane configuration, the other a triplane (the latter sometimes referred to as the C.VIII.Dr). Neither version offered enough of an improvement on the C.IV to make mass production worthwhile.

Variants 
 C.VIII - Biplane prototype two-seater fighter/reconnaissance aircraft.
 C.VIII Dr - Triplane version of C.VIII, no improvement in climb and speed reduced to 165 km/h (103.12 mph)

Specifications (AEG C.VIII)

See also

References

Gray, Peter and Thetford, Owen. German Aircraft of the First World War. London:Putnam, 1970 2nd. Ed.

C.VIII
Single-engined tractor aircraft
1910s German military reconnaissance aircraft
Aircraft first flown in 1917
Aircraft with fixed conventional landing gear
Triplanes
Single-engined piston aircraft
AEG D.I. The AEG D.I was a biplane fighter of World War I. Three prototypes were ordered, but after the first two were involved in serious crashes, one of which killed flying ace Walter Höhndorf on September 5, 1917, development was cancelled. A triplane version was built as the Dr.I. The second and third prototypes differed little from the first except in detail.

Variants 
AEG. D.I
1917 prototype single seat biplane fighter.
AEG Dr.I

1917 prototype single seat triplane fighter.

Aircraft numbers 
 AEG D.I first prototype – D4400/17.
 AEG D.I second prototype – D4401/17.
 AEG D.I third prototype – D5002/17
 AEG Dr.I prototype – no. not known

Specifications (AEG D.I)

See also

References

Further reading

 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910–18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914–18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001, 
 Wagner, Ray and Nowarra, Heinz. German Combat Planes: A Comprehensive Survey and History of the Development of German Military Aircraft from 1914 to 1945. New York: Doubleday, 1971.

D.I
1910s German fighter aircraft
Aircraft first flown in 1917
AEG DJ.I. The AEG DJ.I was a highly streamlined biplane ground attack aircraft of late World War I that was undergoing evaluation at the time of the Armistice.

Design and development
The single seat attack biplane, which began evaluation in September 1918, carried a pair of 7.92 mm (.312 in) "Spandau"-type machine guns and a light bomb load. The design featured aluminium fuselage coverings, I-type interplane struts with no flying or landing wires, and protective armour.

Specifications (AEG DJ.I)

See also

References

Further reading

 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910–18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914–18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001, 

Single-engined tractor aircraft
Biplanes
DJ.I
1910s German attack aircraft
Aircraft first flown in 1918
AEG Dr.I. The AEG Dr.I was a triplane fighter of World War I, based on the D.I. Only a single prototype was built and its poor performance meant that no production ensued. The Dr.I was a Dreidecker (triplane) variant of the D.I and had been inspired by a Sopwith Triplane that had been captured intact. A number of proposals for fighters with comparable characteristics were put forward, and AEG's contribution to the program appeared in October 1917. Other than the triple wing it was a D.I, the aircraft had the same fuselage, engine and twin gun armament of its earlier brethren.

Specifications (AEG Dr.I)

See also

References

Notes

Further reading
 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910–18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914–18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001,

External links

AEG Dr. I — The Virtual Aviation Museum

Dr.I
1910s German fighter aircraft
Triplanes
AEG G.I. The AEG G.I (originally designated as the K.I) was a three-seat, twin-engined German biplane bomber aircraft of World War I. It was tested and found to be viable for air-fighting in the latter half of 1915 but performed poorly, necessitating the development of the AEG G.II.

Specifications (AEG G.I)

See also

References

Bibliography

Gray, Peter and Thetford, Owen. German Aircraft of the First World War. London:Putnam, 1970 2nd. Ed..

G.I
1910s German bomber aircraft
Biplanes
Aircraft first flown in 1915
Twin piston-engined tractor aircraft
Aircraft with fixed conventional landing gear
AEG G.II. The AEG G.II was a German biplane bomber aircraft of World War I developed from the AEG G.I, with more powerful engines. The G.II was typically armed with three 7.92 mm (.312 in) machine guns and 200 kg (440 lb) of bombs. The bomber suffered stability problems, and many G.IIs were fitted with additional vertical tail surfaces on each side of the fin and rudder to improve flight handling characteristics.

This aircraft was the second assignment of Baron von Richthofen prior to becoming a pilot.

Specifications (AEG G.II)

See also

References

 Taylor, John W. R., and Jean Alexander. "Combat Aircraft of the World" New York: G.P. Putnam's Sons, 1969 Library of Congress Catalog Card Number 68-25459 (Pg.134-135)

Further reading

 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910-18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914-18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001, 

G.II
1910s German bomber aircraft
Aircraft first flown in 1915
Aircraft with fixed conventional landing gear
Twin-engined piston aircraft
AEG G.III. The AEG G.III was a German biplane bomber aircraft of World War I developed from the G.II. Like its predecessor, it was only built in small numbers and saw limited operational use, mainly far from the main fronts of the war.

Operators

Luftstreitkräfte

Specifications (AEG G.III)

See also

References

 Taylor, John W. R., and Jean Alexander. "Combat Aircraft of the World" New York: G.P. Putnam's Sons, 1969 Library of Congress Catalog Card Number 68-25459 (Pg.134-135)

Further reading

 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910-18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914-18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001, 

G.III
1910s German bomber aircraft
Aircraft first flown in 1915
Aircraft with fixed conventional landing gear
AEG G.V. The AEG G.V was a biplane bomber aircraft of World War I, a further refinement of the AEG G.IV. The type saw limited production before the Armistice, and never entered operational service. It featured a 600 kg (1,320 lb) bombload.

After the war, several were converted into 6-passenger airliners. It was the only large German World War I aircraft to see commercial duties in any significant capacity. Initially, passengers sat in an open cockpit, but a Limousine version was soon developed. AEG attached a cabin fairing to enclose the passenger area and outfitted the nose with a hinged door for baggage. Finally, a toilet was provided aft of the passenger cabin.

Operators

Luftstreitkrafte

Swedish Air Force

Specifications (AEG G.V)

See also

References

Further reading

 Kroschel, Günter; Stützer, Helmut: Die deutschen Militärflugzeuge 1910-18, Wilhelmshaven 1977
 Munson, Kenneth: Bomber 1914–19, Zürich 1968, Nr. 20
 Nowarra, Heinz: Die Entwicklung der Flugzeuge 1914-18, München 1959
 Sharpe, Michael: Doppeldecker, Dreifachdecker & Wasserflugzeuge, Gondrom, Bindlach 2001, 

G.V
1910s German bomber aircraft
Aircraft first flown in 1918
Aircraft with fixed conventional landing gear
Twin-engined piston aircraft
AEG PE. The AEG PE (Panzer Einsitzer – "armoured one-seater") was a triplane ground-attack aircraft of World War I, one of the first aircraft designed from the outset for that role. The Idflieg  rejected it on the grounds that its poor maneuverability made it too vulnerable to enemy fighters.

Specifications (AEG PE)

See also

References

PE
Single-engined tractor aircraft
1910s German attack aircraft
Triplanes
Aircraft first flown in 1918
Aircraft with fixed conventional landing gear
Single-engined piston aircraft
AEG R.I. The AEG R.I or Riesenflugzeug 1 (meaning "giant aircraft") was a four-engined biplane bomber aircraft of World War I manufactured by AEG.

Design and development
The R.I was unusual for a multi-engined aircraft in that rather than connecting propellers directly to the engines and mounting the engines in nacelles, the R.I carried all its engines within the fuselage and turned its propellers via a system of drive shafts. A single prototype was completed and flew in 1916. Initial flights were quite successful, the aircraft being considered very manoeuvrable, but on 3 September 1918, a newly assembled propeller, which had not been given sufficient time for glue to cure, disintegrated. The vibrations resulting from that failure caused the complex transmissions and shafting connecting all four engines to both propellers to tear loose, which then cut a center section strut, resulting in the breakup of the aircraft, killing all seven crew on board. Of the seven further AEG R.1 aircraft planned or under production when the war ended, (R.21, R.22, R.59, R.60, R.61, R.62, R.63 and R.64), only R.21 was finished and R.22 partially complete.

Specifications

See also

References

R.I
1910s German bomber aircraft
Four-engined tractor aircraft
Biplanes
Aircraft first flown in 1916
Four-engined piston aircraft
LTO. LTO may refer to:

Science and technology
 Linear Tape-Open, a computer storage magnetic tape format
 Link-time optimization, a technique used by compilers to optimize software
 Low Temperature Oxide, a form of silicon dioxide used in microfabrication
 Lunar transfer orbit, in orbital mechanics
 Lithium titanate (Li2TiO3), a compound containing lithium and titanium
 Lithium-titanate battery, a type of rechargeable battery using a lithium-titanate anode
Long-term orientation vs. short-term orientation (LTO), a Geert Hofstede's cultural dimension that associates the connection of the past with the current and future actions/challenges

Other uses
 Lambda Tau Omega, an American college sorority
 Land Transportation Office, a government agency in the Philippines
 Light tight oil, a type of crude oil
 Loreto International Airport (IATA code), Mexico
 Limited time only, a type of sales promotion