triode
|
||||||||||||||
|
|
|
||||||||||||
|
||||||||||||||
Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
triode |
||||||||||||||||||||||||||||||||||||||||
| navigate by keyword : analog blackboard book brainy burlesque capable card chart circuit clever concept constructor design device diagram drawing education electron electronics element engineer engineering exclusive eyeglasses figure fun funny history idea illustration intellect intellectual invention joke knowledge layout learning lecture man mortarboard parody pattern portrait principle professor projection radio schematic scheme school student teacher teaching textbook transistor triode tube unusual vacuum valve |
||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||
| Funny education, vacuum triode illustration |
||||||||||||||||||||||||||||||||||||||||
|
Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
||||||||||||||||||||||||||||||||||||||||