scispace - formally typeset
Search or ask a question

Can you replace a vacuum tube with a transistor? 

Answers from top 17 papers

More filters
Papers (17)Insight
Therefore, it can be used to replace the evacuated collector tube which has poor performance due to long-term operation.
We propose a new vacuum-driven blood pump having a tubular shape with active valves.
The Carbon Nano Tube Field Effect Transistor is an efficient device to supplant the current Complementary Metal Oxide Semiconductor technology for its excellent electrical properties.
It does not involve the replacement of the vacuum tube and the transistor by their equivalent circuits, and hence does not require a redrawing of the circuit diagram.
This demonstration of a lateral vacuum transistor at microelectronic scale is essential to the development of the vacuum electronic integrated circuit.
In order to tackle such challenges, in this talk, we propose a nanometer scale vacuum channel transistor that combines the advantages of both vacuum as transport media and wafer process as fabrication method, providing compactness as well as high performance.
These innovative transistors could replace MOS-transistors, like MOS replaced vacuum tubes.
Journal ArticleDOI
J. A. Becker, John N. Shive 
19 Citations
Used as a semiconductor amplifier, it works on an entirely different principle and is capable of performing the same tasks now done by the vacuum tube triode.
Basic transistor characteristics with distinct cutoff, linear, and saturation regions were observed, revealing the practical application of the device for vacuum microelectronics and integrated circuits.
We propose and demonstrate a nanoscale vacuum-tube diode triggered by few-cycle near-infrared laser pulses.
The transistor in a high vacuum outperforms that in air.
This study is the first to use vacuum tube solar collectors in distillation systems.
It is relatively simple to construct an inverted vacuum tube with wide clearances between plate and the rest of the tube, so that potentials of hundreds of thousands of volts can be applied to the plate, while the effect of this high voltage stepped down in almost any desired ratio is obtained in a low-potential circuit.
It is shown that the circuit properties of such a device are very similar to those of a vacuum tube for many applications.
Such a circuit has the advantages over vacuum‐tube circuits of much shorter triggering time, simplicity, small size, absence of filament power supply, and low operating voltage.
Proceedings ArticleDOI
John Covert, David L. Livingston 
04 Apr 2013
16 Citations
The disadvantages of vacuum tubes compared against solid-state implementations, such as power consumption, reliability, cost, etc., are far outweighed by the desirable sound characteristics of the overdriven vacuum-tube amplifier.
Journal ArticleDOI
P.M. Schultheiss, H.J. Reich 
01 Jun 1951
Improvement in some respects is obtained if a transistor is used in conjunction with a vacuum-tube cathode follower.

See what other people are reading

What is mechanisms of theX-ray detection?
5 answers
The mechanisms of X-ray detection involve various components and processes. X-ray detectors typically consist of vibrating disks, conveying devices, guide rails, detection devices, and sorting mechanisms to facilitate efficient detection of materials. These detectors utilize the Shockley-Ramo theorem to operate, incorporating ionization energy for electron-hole pair creation and responsivity formulation. In medical imaging, flat panel X-ray imagers (FPXIs) play a crucial role, utilizing direct conversion technology where X-ray photons are converted to charges in a photoconductor, then read by sensors like TFT-AMA or CMOS arrays. Additionally, a guiding mechanism with lead screws and sliders enables precise adjustment for optimal X-ray source reception, ensuring clear image quality and easy maintenance. These combined mechanisms enhance detection efficiency and accuracy in X-ray applications.
What is the advantage and disadvantage of MC-ICPMS compared to TIMS during stable metal isotopic measurement??
5 answers
Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS) offers advantages and disadvantages compared to Thermal Ionization Mass Spectrometry (TIMS) for stable metal isotopic measurements. MC-ICP-MS provides rapid sample throughput and simultaneous measurement of multiple isotopes, enhancing efficiency. However, MC-ICP-MS may face challenges in achieving the same level of precision as TIMS due to potential spectral and non-spectral interferences, impacting accuracy. TIMS, on the other hand, is known for its exceptional precision in isotopic analysis but is slower and less efficient in processing samples compared to MC-ICP-MS. Therefore, while MC-ICP-MS offers speed and multi-isotope analysis capabilities, TIMS excels in precision, highlighting the trade-offs between the two techniques in stable metal isotopic measurements.
How does 2D ice contribute to green energy?
5 answers
2D ice plays a significant role in contributing to green energy by enabling innovative technologies for sustainable practices. It can be utilized in various ways such as in ice-assisted electron-beam lithography (iEBL) for nanofabrication, as a template for assembling colloidal nanoparticles into large 2D nanosheets, and in a multi-level ice and snow energy utilization system for power generation. These applications demonstrate how 2D ice can be leveraged to enhance energy efficiency, reduce environmental impact, and promote the utilization of renewable resources. By incorporating 2D ice into different green energy technologies, it contributes to the development of sustainable solutions for energy generation and utilization, aligning with the global efforts towards a more eco-friendly future.
Where are most digital devices produced?
5 answers
Most digital devices are produced in China, known for its efficient manufacturing processes and cost-effective electronic products. The production of digital devices heavily relies on components like Rare Earths, which are essential for electronics and are often extracted in China, leading to the creation of by-products like radioactive mud used in artworks like Rare Earthenware. The success of digital devices is attributed to the use of three-terminal devices like relays, vacuum tubes, and transistors, which have been crucial in the development of large computing machines. Additionally, digital signal-producing devices play a significant role in generating digital signals representative of various characteristics, showcasing the intricate technology involved in the production of digital devices.
What are the difference between Online versus Offline HAR ?
5 answers
Online and offline techniques differ in various aspects for different applications. In the context of Raman pump power optimization, machine learning (offline) and evolutionary strategy (online) methods were compared. Online methods in distributed systems involve server operations triggered by online or offline instructions, ensuring client stability. On the other hand, an online and offline real-time interactive game system integrates cloud servers, internet clients, and offline player equipment for rapid synchronization and enhanced gaming experience. While online approaches are suitable for real-time interactions and quick data synchronization, offline methods are preferred for certain tasks like optimization where time-consuming reconfigurations are acceptable. Each method has its strengths and is chosen based on the specific requirements of the system or application.
What names are applied to the two types of BJT transistors?
5 answers
The two types of Bipolar Junction Transistors (BJTs) are named based on the arrangement of semiconductor materials within them. The first type is called NPN, which stands for Negative-Positive-Negative, while the second type is known as PNP, which stands for Positive-Negative-Positive. In an NPN transistor, the switch turns on when a current flows through the base, whereas in a PNP transistor, the switch turns on when there is no current through the base. These configurations are essential in determining the behavior and functionality of the transistors, influencing their applications in amplification, switching, and digital circuit elements.
What is application or daily use of adder and subtractor?
5 answers
Adder and subtractor circuits play a crucial role in digital circuits for performing arithmetic operations like addition and subtraction. These circuits are essential components in processors, where the Arithmetic Logic Unit (ALU) utilizes them for executing mathematical functions. In the realm of quantum-dot cellular automata (QCA), novel adder/subtractor designs have been proposed, leveraging the benefits of quantum technology for efficient and cost-effective computing systems. Additionally, the Universal Verification Methodology (UVM) is employed for verifying the functionality of adder-subtractor circuits, offering automation and ease of building verification environments. Overall, adder and subtractor circuits find widespread application in daily computing tasks, ensuring accurate and reliable arithmetic calculations in various digital systems.
How does temperature could result to more radiation?
5 answers
Temperature can influence radiation emission in various ways. Higher temperatures lead to increased energy emission from objects, with visible energy emitted around 650°C. For instance, in the case of parametric x-ray radiation (PXR) from a Si crystal bombarded by electrons, cooling the crystal to liquid-nitrogen temperature enhances radiation intensity compared to room temperature. Moreover, studies on human peripheral blood lymphocytes show that aberration frequency post-irradiation is significantly higher at 37°C compared to 5°C, indicating a temperature-dependent effect on radiation-induced damage. Additionally, research on radiation absorption in living tissues at different temperatures suggests that radiation effects may be more pronounced at higher temperatures, highlighting the potential risks of combining elevated temperatures with x-radiation, especially in patients with body temperatures around 40°C.
What are the challenges in single molecular electronics can large language model can solve?
5 answers
Challenges in single-molecule electronics, such as connecting molecules between wires for device functionality, persist despite advancements in theory and experiment. Machine learning models, like MoLFormer, trained on vast unlabeled molecular datasets, offer a solution by providing accurate property predictions with reduced complexity. These models, leveraging transformer-based language learning, outperform traditional supervised methods by capturing structural information from SMILES sequences of billions of molecules. MoLFormer's ability to learn spatial relationships between atoms within molecules enables it to predict various molecular properties, including quantum-chemical properties, showcasing the potential of large language models in addressing challenges in single-molecule electronics and advancing fields like drug discovery and material design.
What is premises?
5 answers
Premises can be defined in various contexts. In the realm of arguments, a premise is a statement that supports a conclusion. It can also refer to a broadcasting system component that monitors and controls audio amplifiers to prevent energy waste and abnormalities. Moreover, in the field of data collection, "Premise" is a mobile-phone platform that incentivizes citizens to gather reliable data for economic indicators in developing countries like Nigeria and Liberia. Additionally, in electrical engineering, the National Electrical Code uses the term "premises" to describe the wiring within a facility, distinguishing it from internal equipment wiring. Lastly, in legal theory, "premise theory" is proposed to explain how international courts adapt legal principles to reflect the legal field, court premises, and individual cases, enhancing judicial transparency and predictability.
What are the benefits of writing by hand?
5 answers
Writing by hand offers numerous benefits for learning and cognitive development. Research suggests that when individuals write by hand, they engage in sensory-motor integration, leading to optimal conditions for memory encoding and learning. This process involves synchronized brain activity in key regions associated with memory and learning, particularly in the theta range. Additionally, the act of handwriting allows individuals to actively see and feel the letters being written, aiding in symbol recognition and information retention. Furthermore, writing by hand involves fine and controlled hand movements, promoting neural oscillation patterns crucial for learning, especially in children. Overall, the benefits of handwriting include enhanced memory, sensory-motor integration, and cognitive development, making it a valuable practice even in today's digital age.