Dual GI-7B Socket
for VK4TZL, November, 2007
This socket was a special order by VK4TZL for experimental use on 432 MHz. The sockets have a common grid plate that is 0.125" thick. The grid ring of each tube sits in a machined groove 0.065" deep .
The cathode and filament connection circuit boards were mounted facing each other but can be rotated to another position if needed.