技術と技能 Technology and skills

https://note.com/multihuman_222/n/ndfbca7927606

省エネ大賞受賞技術開発の軌跡 (62)：

第2章 誰でもできる発見や発明

2.2 常識よ、サヨナラ

2.3.4.2 技術と技能

Trajectory of Energy Conservation Grand Prize-winning Technology Development (62)

Chapter 2 Discoveries and Inventions That Anyone Can Make

2.2 Good-by for common sense

2.3.4.2 Technology and skills

添付写真は節電虫技術の開発の参考にした黒電話機（回線電話機）とその周辺機器のベルです。

The attached photo shows the black telephone (landline phone) and its peripheral bell that served as a reference for developing the power-saving technology.