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Q&A What component is this (a +/- labeled symbol)?

This type of symbol isn't standard or common. Those are electrolytic capacitors. The short bar is the positive terminal.

posted 1y ago by Nick Alexeev‭

Answer
#1: Initial revision by user avatar Nick Alexeev‭ · 2025-07-06T20:35:56Z (about 1 year ago) 
This type of symbol isn't standard or common.  Those are electrolytic capacitors.  The short bar is the positive terminal.

![AC-coupled input channel](https://electrical.codidact.com/uploads/9lp20vsvjd94q05o9fq34v5ibv9r)

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![power conditioning](https://electrical.codidact.com/uploads/uhxr8xil7zywd9zu2ktjlaow1rg3)