Junt Hoong Chan
-
2015-11-25 12:17:59+0800
- Updated: 2015-11-25 12:17:59+0800
http://engineeeringcomputerworks.com/Beam_Power_Amplifier.jpg
RCA-807 The "Little Magician" of Beam Power Amplifier Tubes as advertised in IEEE SPECTRUM Magazine in November 2015. from Alexander B.Magoun, IEEE History Center
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