Instruction 1 for my Mk 3 octal boards requires a jumper from Pin 1 to Pin 6 on V1. This connects the v1 grid to the unused side of the tube's cathode.
What does this do? Is it really to be installed on the tube socket before the socket is fitted to the board?
thanks for any input.
What does this do? Is it really to be installed on the tube socket before the socket is fitted to the board?
thanks for any input.