Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 45,000+ electronic circuits, cross-referenced into 500+ categories.
We have searched the web to help you find quick solutions & design ideas.

Got Designs?
Please eMail
if you want me to link to and/or post your original design
NOTE:  We make every effort to link to original material posted by the designer. 
Please contact us if our link is not to your site!  Thanks.

DiscoverCircuits Schematics List - N through R

A  B  C  D     E through M      N  O  P  Q  R     S through Z      Dave's Circuits

The contents & graphics of Discovercircuits.com are copyrighted.

LINKING to Dave's circuits is permitted
but DO NOT COPY and/or POST ANY text or ANY graphics to your WEB SITE.

My lawyer insisted that I add a DISCLAIMER.

   N Next   
 Nickel Battery Chargers        Noise Reduction Filters Notch Filters - Active
 Noise Generator Notch Filters - Passive

TOP    O Next     Previous

Optic Circuits   Oscillator Circuits Continued
Optical Fiber Circuits       Square wave 
Optical Sensors      Triangle wave
Opto Coupler Circuits       Variable-Frequency 
Opto-Isolator Couplers       Voltage controlled
Oscilloscope Circuits         Wien bridge
  Oscillator Circuits
One Shot Circuits        RF
Opacity Circuits       Sine wave  
Operational Amplifier Circuits

TOP    P

Next     Previous
PA (Public Address) Circuits Photovoltaic Circuits

PDA Circuits   Pierce Oscillators   
PLL (Phase Locked Loop) Circuits Piezoelectric Circuits
PWM (PulseWidth Modulation) Pink Noise Generator Circuits
Particle Detector Position Monitors 
Passive Filters Potentiometer Circuits
Power Amplifiers
Power Control Circuits   
Power Failure Alarm    
Power FET Circuits
Passive Infrared Circuits Power Line Circuits    
Peak Detectors   Power Meters / Monitors
Pedometers   Power Supplies Probe Circuits  
Period to Voltage Converter      AC to AC    Programmable Device Codes  
Pest Control Circuits        AC to DC    PROJECTS TO BUILD  
Phase Detector        DC to AC   (PUT) Circuits  
Phase Locked Loop (PPL) Circuits      DC to DC Protection Circuits
Phase Modulation (PM) Circuits        High Voltage Proximity Circuits
Phase Shifting Keying (PSK)        Low Voltage Drop Public Address (PA) Circuits
Photo Cell Circuits      Switchmode Pulse Generator
Photodiode Circuits      UPS Pulse Width Modulation (PWM)
Photoelectric Circuits      Variable Push-Pull Circuits 
Photo-Flash Circuits Preamplifiers
Photography Circuits Pressure Sensors

TOP    Q

Next      Previous
Quadraphonic Circuits Quadrature Detectors

Got Designs?
Please eMail
if you want me to link to and/or post your original design Thanks.

TOP    R

Next     Previous

Radio Control Circuits   RF (Radio Frequency) Circuits  
Radio Frequency ID Devices     RF (Radio Frequency) Amplifiers
Rain Detector     RF (Radio Frequency) Converters
Ramp Generators     RF (Radio Frequency) Detectors 
Receiver Circuits  (AM, FM. IF, RF)        RF (Radio Frequency Mixers
Rectifier Circuits     RF (Radio Frequency Oscillators   
Reference Circuits  
Regulated Power Supply Circuits  
Regulator Circuits   RFID Circuits
Relay Circuits     Root Mean Squaren (RMS) Meters  
Remote Control Circuits Robot Circuits   
RFID Circuits Repeater Circuits    Rocket Circuits  
RMS (Root Mean Square) Meters  Resistance Meters Rotation Monitors
Radar Circuits Revolutions Per Minute Monitors RPM Monitors
Radar Detectors
Radiation Detectors / Monitors

Please check out our Media Kit to see if placing an ad is right for you.

Note:   Circuits are added and bad links removed frequently.  Please check back often.

A through D         E through M         N through R         S through Z      Dave's Circuits

HOME Schematics Index Hobby Corner Dave's Circuits Contact Info
Imagineering Ezine Dave Johnson, P.E. Faraday Touch Switches

 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |   Link to DiscoverCircuits.com  |  Privacy Policy

Copyright  January, 1998 - June, 2021     David A. Johnson  All Rights reserved. 

 COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED!