From 90eeb0f44ca5f54675645db25b8a2a33c55713a0 Mon Sep 17 00:00:00 2001
From: eggy <danielchen04@hotmail.ca>
Date: Sun, 15 Jan 2023 17:53:30 -0500
Subject: [PATCH] ece140: add applications

---
 docs/1b/ece140.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/docs/1b/ece140.md b/docs/1b/ece140.md
index bc0a8b0..65ed1c8 100644
--- a/docs/1b/ece140.md
+++ b/docs/1b/ece140.md
@@ -71,3 +71,9 @@ $$
 <img src="https://upload.wikimedia.org/wikipedia/commons/5/55/Voltage_Source_%28Controlled%29.svg" width=100>(Source: Wikimedia Commons)</img>
 
 <img src="https://upload.wikimedia.org/wikipedia/commons/f/fe/Current_Source_%28Controlled%29.svg" width=100>(Source: Wikimedia Commons)</img>
+
+### Applications
+
+A **cathode ray tube** produces an electron beam of variable intensity depending on the input signal. Electrons are deflected by the screen to produce imagery.
+
+<img src="/resources/images/crt.png" />