diff --git a/content/DIY半導体.md b/content/DIY半導体.md
index 7504d785..4c7d0f3f 100644
--- a/content/DIY半導体.md
+++ b/content/DIY半導体.md
@@ -52,12 +52,9 @@ https://web.archive.org/web/20121027074518/http://groups.yahoo.com/group/home_tr
 
 [[Sam Zeloof]]
 
+[[Ryan Jordan]]
 
-#### Ryan Jordan
-
-https://makezine.com/article/science/making-transistors-out-of-iron-pyrite/
-http://www.ryanjordan.org/home.html
-https://monoskop.org/Ryan_Jordan
+[[Robert Adams]]
 
 ### その他
 
diff --git a/content/Nyle Steiner.md b/content/Nyle Steiner.md
index 6561f560..74c36f6a 100644
--- a/content/Nyle Steiner.md	
+++ b/content/Nyle Steiner.md	
@@ -1,2 +1,8 @@
 ---
-title: Nyle 
+title: Nyle Steiner
+tags:
+- person
+- semiconductor
+---
+
+http://www.sparkbangbuzz.com/  
\ No newline at end of file
diff --git a/content/Robert Adams.md b/content/Robert Adams.md
new file mode 100644
index 00000000..4d314506
--- /dev/null
+++ b/content/Robert Adams.md	
@@ -0,0 +1,25 @@
+---
+title: Robert Adams
+tags:
+- person
+- semiconductor
+---
+
+The lost transistor? (Makezine, 2009)
+
+https://makezine.com/article/technology/the-lost-transistor/
+
+[[点接触トランジスタ]]の類型
+
+The Transistor Enigma
+
+https://web.archive.org/web/20090404052348/http://www.aethmogen.com/wri/radams/tenigma1/toc.shtml
+
+
+"THE ADAMS CRYSTAL AMPLIFIER
+
+The Adams Crystal Amplifier was invented, 1933, by Robert G. Adams, at the age of thirteen years, at 418 Queen Street West, Hastings, Hawkes Bay, New Zealand, the assembly of which is depicted, as Adams described it, in the artist's impression."
+
+https://web.archive.org/web/20100105122933/http://www.aethmogen.com/wri/radams/tenigma1/07ada/01txt.shtml
+
+
diff --git a/content/Ryan Jordan.md b/content/Ryan Jordan.md
new file mode 100644
index 00000000..3b233d5d
--- /dev/null
+++ b/content/Ryan Jordan.md	
@@ -0,0 +1,20 @@
+---
+title: Ryan Jordan
+tags:
+- person
+- semiconductor
+- art
+---
+
+https://makezine.com/article/science/making-transistors-out-of-iron-pyrite/
+
+[[点接触トランジスタ]]を[[黄鉄鉱]]で自作するWS
+
+[[Robert Adams]]の Crystal Amplifier (1933)というのが元になってるらしい
+
+
+https://unframed.lacma.org/2014/02/12/3-d-printing-and-derelict-electronics-at-the-art-technology-lab
+
+http://www.ryanjordan.org/home.html
+
+https://monoskop.org/Ryan_Jordan
\ No newline at end of file