Menu
Circuits
Power Supply
Amplifier
Audio
Radio Frequency
Oscillator
Timer & Pulse
Sensor
Digital Logic
Microcontroller
Arduino Projects
Transistor
Operational Amplifier
Lighting
Battery Charger
Voltage Regulator
Inverter & Converter
Switching
Motor Control
Timer/Delay
Alarm & Security
Remote Control
Communication
Wireless
Measurement & Instrumentation
Telecommunication
Computer Interface
Home Automation
Automotive
Energy
Metal Detector
Educational
Miscellaneous
Robot
Electronic Tutorials
AC vs DC theory
Analog circuit analysis
Analog communication
Arduino tutorials
Audio electronics
Basic electronics principles
Battery management systems
Breadboarding and prototyping
Circuit debugging techniques
Control systems
Digital communication
Digital logic design
Diodes and rectifiers
Electromagnetic interference (EMI)
Electronics safety
Filter design
Home automation
Impedance and reactance
Inductors and coils
Inverters and converters
IoT and embedded systems
Lighting systems
Linear power supplies
Logic gates and digital ICs
Microcontrollers and development boards
Motor control systems
Multimeter usage
Ohm’s law and resistance
Operational amplifiers
Oscilloscope tutorials
PCB design and layout
Power and energy
Power factor correction
Raspberry Pi tutorials
Resistors and capacitors
RF and wireless basics
Sensors and transducers
Signal conditioning
Signal types and waveforms
Simulation software (e.g., LTspice)
Soldering techniques
Switching power supplies
Transistors and FETs
Voltage and current
Voltage regulators
AI Tutorials
AI ethics and safety
AI for cybersecurity
AI fundamentals
AI in education
AI in finance
AI in healthcare
AI in marketing
AI in mobile apps
AI in robotics
Autonomous systems
Chatbots and conversational AI
Data labeling and annotation
Datasets for AI
Deep learning theory
Dimensionality reduction
Edge AI and IoT
Explainable AI (XAI)
Face recognition
Generative AI (GANs, VAEs, diffusion)
Generative vision models
Hugging Face Transformers
Image classification
Image segmentation
LangChain & LLM frameworks
Large language models (LLMs)
Machine learning basics
Model evaluation & metrics
Model serving & deployment
Multimodal learning
Named entity recognition
Neural networks
NLP fundamentals
Object detection
OCR and image-to-text
Optimization algorithms
PyTorch tutorials
Reinforcement learning
REST APIs for AI
Sentiment analysis
Supervised learning
Text classification
Text generation
Transfer learning
Unsupervised learning
Calculators
Antennas
Basic Electrical
Converters
Filters
Op-Amps
Oscillators
Passive Components
RF & Microwave
Thermal & Power
Datasheets
Audio ICs
Communication ICs (IR/RF/BT)
Diodes
Display Drivers & LED Controllers
Logic ICs
Memory ICs
Microcontrollers & SoCs
Miscellaneous Components
Operational Amplifiers (Op-Amps)
Oscillators & Timers
Power Management ICs
Semiconductors
Sensors (Temp, Light, etc.)
Transistors
Voltage Regulators
Home
›
Circuits Tags
›
Bd139
Results tagged
#Bd139
in Circuits
Making a BD139 voltage follower buffer
Schematic shows R4 at the emmiter of the transistor, as amb and majkel have suggested it should be between the opamp and transistor, this is...
