Electrical Attenuator Symbols

PDF: https://www.electrical-symbols.com/electrical-electronics-pdf/Electrical_Attenuator_Symbols.pdf

WEB: https://www.electrical-symbols.com/electric-electronic-symbols/electrical-attenuator-symbols.htm

Tv & Radio Distribution Symbols

PDF: https://www.electrical-symbols.com/electrical-electronics-pdf/Tv_Radio_Distribution_Symbols.pdf

WEB: https://www.electrical-symbols.com/electric-electronic-symbols/tv-radio-distribution-symbols.htm

Waveguides Symbols

PDF: https://www.electrical-symbols.com/electrical-electronics-pdf/Waveguides_Symbols.pdf
WEB: https://www.electrical-symbols.com/electric-electronic-symbols/waveguides-symbols.htm

Symbols of Antennas / Aerials

PDF: https://www.electrical-symbols.com/electrical-electronics-pdf/Antennas_Aerials_Symbols.pdf
WEB: https://www.electrical-symbols.com/electric-electronic-symbols/antenna-aerial-symbols.htm

Other basic electrical and electronic symbols

https://www.electrical-symbols.com/electronic-electrical-symbols/basic-electrical-electronic-symbols.htm#other_basic_symbols

Electrical test & control equipment symbols

https://www.electrical-symbols.com/electronic-electrical-symbols/basic-electrical-electronic-symbols.htm#electrical_test_control_symbols

Basic Electrical and Electronic Symbols

Basic symbols of  Digital Electronic

https://www.electrical-symbols.com/electronic-electrical-symbols/basic-electrical-electronic-symbols.htm#symbols_logic_gates

Basic Electronic Symbols of active components

Basic Electrical and Electronic Symbols 

Basic symbols of active components

https://www.electrical-symbols.com/electronic-electrical-symbols/basic-electrical-electronic-symbols.htm#symbols_active_components

Basic symbols of passive electronic components

https://www.electrical-symbols.com/electronic-electrical-symbols/basic-electrical-electronic-symbols.htm#symbols_passive_components

Basic Electrical and Electronic Symbols

Summary of main Basic Electrical Symbols and Electronic Symbols

https://www.electrical-symbols.com/electronic-electrical-symbols/basic-electrical-electronic-symbols.htm

Symbols of Transmission Lines (Electrical Distribution)

The transmission lines and the electrical distribution systems form the set of structures and devices (transformers, cables, poles ...) responsible of transporting electricity from the source of generation to the final consumption centers.

https://www.electrical-symbols.com/electric-electronic-symbols/lines-electrical-distribution-symbols.htm

Symbols of Transistors MOSFET and IGFET

Transistors of field effect (MOSFET and IGFET) are transistors constituted by a filament generally made of semiconductor silicon, called channel, and an associate diode called door. 
These symbols can be represented inside a circle.

https://www.electrical-symbols.com/electric-electronic-symbols/transistor-mosfet-symbols.htm

Waveguides Symbols

A waveguide is a physical structure through which energy is transmitted in the form of electromagnetic waves. The modes of propagation depend on the wavelength, the polarization and the dimensions of the guide.

https://www.electrical-symbols.com/electric-electronic-symbols/waveguides-symbols.htm

Transistor Symbols

The Transistor is a device semiconductor provided with three terminals called base, issuer and collector. It is used to work in electronic circuits as rectifier, amplifier, switch...
These symbols can be represented inside a circle.

https://www.electrical-symbols.com/electric-electronic-symbols/transistor-symbols.htm

Symbols of Single-Line Switches / Unifilar

Representation single-line of switches, push-buttons and other devices responsible for establishing, sustaining and interrupt the electrical current in low power circuits.

https://www.electrical-symbols.com/electric-electronic-symbols/switches-unifilar-symbols.htm

Disconnectors / Unipolar Switch Symbols

https://www.electrical-symbols.com/electric-electronic-symbols/switch-symbols.htm#symbols_disconnectors_switches_unipolar

Thermocouple Symbols / Temperature Detectors

https://www.electrical-symbols.com/electric-electronic-symbols/sensors-transducers-symbols.htm#symbols_thermocouple_temperature_detectors

Symbols Optocouplers / Photoelectric Detectors / Optoisolators

https://www.electrical-symbols.com/electric-electronic-symbols/sensors-transducers-symbols.htm#symbols_optocouplers_photoelectric_detectors

Proximity Sensors Symbols

https://www.electrical-symbols.com/electric-electronic-symbols/sensors-transducers-symbols.htm#proximity_sensors_symbols

Effects Switches Symbols or Dependencies

https://www.electrical-symbols.com/electric-electronic-symbols/sensors-transducers-symbols.htm#effects_switches_symbols