The 3A6 is actually a 3A1 with delay line, intended for use in the 561 and 564 main frames, both have 10MHz bandwidth. The 9A1 high bandwidth plugin is for use in the 506 mainframe.
The 3A6 is actually a 3A1 with delay line, intended for use in the 561 and 564 main frames, both have 10MHz bandwidth. The 9A1 high bandwidth plugin is for use in the 506 mainframe.