• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

TODAY IN HISTORY

Sonar

Sr. Member
Apr 8, 2016
1,501
1,016
173
On this date I906 Le de Forest patented the Audion. A 3 diode valve. The birth of the tube today in history. 73
deforest2.jpg
 

dxChat
Help Users
  • No one is chatting at the moment.