  Eveready Raytheon ER-226 |
 Eveready Raytheon ER-231 |
  Raytheon VT52 |
 Eimac 100T |
 Vaic Valve Marconi I |
 50 globe |
   Telefunken RS241 |
 Telefunken RGN4004 |
  Siemens & Halske Ce |
  Arcturus 126 |
 STC 4212E |
 Cunningham CX310 |
 RCA UV201 |
 RCA UV203 |