Circuits of delabs

• Analog Circuits
• Industrial Process Control Circuits
• Mini RTD Pt-100 3W Transmitter
• RTD Mains Power Transmitter
• Analog Temperature Controller
• Instrumentation and Measurement
• Auto range 4-1/2 Digital Voltmeter
• 3-1/2 Digit ICL7107 DPM DVM
  
• Current Source mA for calibration
• Mixed Circuits Analog with Digital
• Fluid Level with Reed Relays
• Basic Opamp Circuits
• Square & Triangle Oscillator
  
• Inverting Amplifier Op-Amp
• Non-Inverting Amplifier Op-Amp
  
• Differential Amplifier OpAmp
  
• 3 OpAmp Instrumentation Amp
  
• Buffer or Unity Gain Op-Amp
• Two Op-Amp Differential Amplifier
• Temperature Measurement Control
• Digital Circuits
• Basic Digital Circuits
• Digital Timers, Counters and Clocks
• Mixed and Interface Circuits
• 555 Timer based Circuits
• Pulse width modulation 555
• Fixed frequency var DC 555
• Watchdog for uC uP systems
• OR gate with two 555
• Drive SCR thyristor with 555
• LM555 Voltage Doubler
• 555 based Reset Generator
• Power Electronics
• Power Electronic Circuits
  
• Power Supplies Section
• Regulated High Voltage Supply
• Switching Battery Charger L296
• WorkBench Dual Power Supply
• Solid State Relays - SSR
• DC Load DC Control SSR
• DC-AC Solid State Relay
  
• NO AC Load SSR DC control
• PCB AC Load SSR DC control
• NC AC Load SSR DC control
• AC-AC Solid State Relay
• High Energy Circuits
• MicroController
• 80C51, SBC, Firmware Circuits
  
• Microcomputer Process Control
• Interface 80C51 to ICL7135
  
• 80C39-8749 MCS-48
• Electrical Diagrams
• Control Panel Wiring Diagrams
• Circuits with Discrete devices
• Isolated dual supply from 5V
• Telephone LED status indicator
• Music Sound to light converter
• Simple Water operated relay
• LED Voltage Level Indicator
• Basic Relay or Solenoid Driver
• Electronic Tables and Charts
• Exponents - Giga Tera Pico Nano
• Ohms Law  Amps Volts Watts
• Types of Resistors - Color code
• Binary and Hexadecimal System
• Thermocouple and Pt-100 RTD
  
• High Resistance Materials
• Mains Voltage Transformers
• Mains Voltage Stabilizers
• Stabilizer Step up 230V AC 500VA
• Solid-State Stabilizer 110V AC
• Mains V and I LED Indicators
• Mains Voltage monitor LM324
• Mains Voltage monitor LM3914
• Triac Lamp Dimmer power control
• Hobby DIY Circuits
• Insulation Tester
• Insulation Tester pico amplifier
  
• Insulation Tester power supply
• Insulation Tester Theory  
• Catalog of Insulation Tester
  
• Simple Test Equipment
• High Resistance Indicator
  
• Digital Potentiometer
• Function Generator ICL8038
• Home Made Circuits
• Battery Level Indicator.
  
• Optical Obstacle Switch.
• Test and Measurement
• DMM or digital multi meter
• LM3914 analog display
• 3-1/2 digital display
• Power supply with battery
• DMM range and AC-DC mode
• AC conversion continuity
• Voltage attenuator amp
• Current Shunt Amplifier
• Resistance Current Source
• Analog Buffer and Inverter 
• Small Electronic Testing Tools
  
• Low cost Dial AVO meter
  
• Computer Data Interface
• Analog Interface for PC Ports
• ICL7135 to Printer port
  
• Milli Volt Source Printer Port
• Control Interface to PC Ports
• Simple Printer Port Interface
  
• Test Circuit for Logic Analyzer
  
• 256 Relays 16K Dot Matrix
  
• Byte Blaster in Quartus

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Electronics Theory

• Process Control Application notes
• Temperature Control - Molding
• Temperature  Applications
• Connection Diagrams AC DC SSR
• Fire Retardant SSR Enclosures
• Pressure and Flow Control
• Process Control Instrumentation
• Temperature Controller Production
  
• Thermocouple with DPM - DMM
  
• Proportional Controller Specs
  
• Process Scanner and Calibrator
• Instruction Manuals - Control Panels
• Test & Measurement Instruments
• Telecom or Communications T&M
• Custom Built Test Instruments
• Lab Benchtop Test Instruments
• Instruments used in Calibration