How to Read a Schematic

How to read a schematic, follow electronics circuit drawings to make actual circuits from them. This starts with the schematic for a very simple circuit with just some batteries, resistor, switch and an LED. Then it talks about Earth ground and chassis ground. Finally it moves on to a crystal radio amplifier schematic and adds a diode, potentiometer and capacitors.

For more electronics symbols, see my webpage here (more coming soon):

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See also:

How to Make Crystal Radio Amplifier for Speaker (1280×720)

How to Make Joule Thief Light a CFL – Jeanna’s Light (1280×720)

555 Timer Chip Music Player for Maker Faire (1280×720)

Follow behind-the-scenes on:




Music used throughout except endboard:
Bicycle Kevin MacLeod (
Licensed under Creative Commons: By Attribution 3.0
ISRC: USUAN1100870

Music used during endboard:
A Darker Heart – music by


34 Comments on “How to Read a Schematic”

  1. fuuuuuuuuuuuck yeahhhhh, finally somebody knowledgeable enough to go back to the fundamentals. Its like cooking metaphorically speaking, once you understand the platform, and develop a baseline, building from that comes easily. Trying to remember parts over and over become redundant in never convincing the circuit simplicity!
    Thank you so much! means a lot, should have millions of views, should be taught in schools, goddam!!! πŸ˜€

  2. im taking HVAC …i want to say i just seen the international symbol for fuse in a previous video from a huge corporation which had ready to confront my instructor tommorrow about this confusion. i find your video more instructive an clearly presented…you do not miss the details various thank you….please keep that style and i always watch.

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