33
/pt/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
5258674
497122
2
Create a timeline
Public Timelines
For educational institutions For teachers For students Cabinet
For educational institutions For teachers For students Open cabinet
FAQ Receber premium
Create a timeline
Public timelines
FAQ
About & FeedbackAcordoPrivacidadeFAQ
Support 24/7  
CabinetGet premium
Donate

1 jan 1910 ano - AT&T buys audion patent

Descrição:

The audion is sold in order to pay de Forest's legal bills. AT&T's R&D department discovers that the audion was almost completely wrong, but that de Forest did get the three electrode design right (in theory). This three-electrode design leads to the creation of vacuum tube

Adicionado na linha do tempo:

Sound Timeline

ByKaroline Herkamp
23 abr 2021
0
0
251

Data:

1 jan 1910 ano
Agora
~ 115 years ago
About & FeedbackAcordoPrivacidadeFAQ
Support 24/7  
CabinetGet premium
Donate
The service accepts bank transfer (ACH, Wire) or cards (Visa, MasterCard, etc). Processed by Stripe.
Secured with SSL