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10 votes
1 answer
3k views

How many "grounds" are there and what is the difference?

I stumbled upon many terms for ground, naturally as newbie I got very confused. ground earth chassis ground earth ground common ground signal ground Are there any more? I assume some are for AC and ...
komrad2236's user avatar
2 votes
3 answers
2k views

What are these "X"s / crosses on this schematic's wiring? Traces attached to the metal housing (ground)?

Below is a section of the schematic for the RF modulator of a Nintendo NES-001 system. I am curious what these Xs are that I've boxed in red below. Looking at my own NES-001 and matching locations, I ...
rossy__'s user avatar
  • 21
2 votes
4 answers
3k views

Difference Between - (Minus Sign) and Chassis Ground in Schematics

I was working on building some projects from the book Electronic Projects for Musicians and I noticed that in most of the schematics there are two symbols for what seems to be ground. One is a - (...
Emmett P's user avatar
  • 356