![Electronics. Vacuum tube. Thermionic emission. Diode. Triode. Rectifiers. Cathode heaters. Triode oscillator. Semiconductor diodes. Transistors. Cathode-ray tube. X-ray tube. Electron microscope. Photocell. Dielectric, induction heating. Neon and ... Electronics. Vacuum tube. Thermionic emission. Diode. Triode. Rectifiers. Cathode heaters. Triode oscillator. Semiconductor diodes. Transistors. Cathode-ray tube. X-ray tube. Electron microscope. Photocell. Dielectric, induction heating. Neon and ...](https://solitaryroad.com/c1051/ole.gif)
Electronics. Vacuum tube. Thermionic emission. Diode. Triode. Rectifiers. Cathode heaters. Triode oscillator. Semiconductor diodes. Transistors. Cathode-ray tube. X-ray tube. Electron microscope. Photocell. Dielectric, induction heating. Neon and ...
![Old vacuum tube AZ1 dual diode rectifier. Used in the power supply section. European socket Stock Photo - Alamy Old vacuum tube AZ1 dual diode rectifier. Used in the power supply section. European socket Stock Photo - Alamy](https://c8.alamy.com/comp/EHXBNP/old-vacuum-tube-az1-dual-diode-rectifier-used-in-the-power-supply-EHXBNP.jpg)