The NB-7 dummy board, a.k.a. IF Switching Board, was not a part of the Drake extender kit. It was only used for TR7s that did not have the NB-7 option.
73
-Jim
NU0C
On Mon, 13 Mar 2023 17:56:33 -0500
"Tom Evans" <Tom.AG9X@...> wrote:
John,
I scanned a full set of original Drake extender boards as well as the DR-7
jumper board and a NB-7 jumper board.
Hopefully this provides what you need.
I'll leave them in a Dropbox folder for a week or so and then delete.
73,
Tom, AG9X
On Mon, Mar 13, 2023 at 11:49?AM JP Nery via groups.io <jpnery=
[email protected]> wrote:
Hi Folks,
Can anyone here write back and tell me the height of TR7 boards. I am
building sets of extender boards and need that dimension.
Also, if there are technicians here willing to test my extender sets,
please write back.
Tu & 73
John WA1ESO@...
401-624-4576
_._,_._,_
Jim Shorney