????? ? Attached is a pdf of some of circuit details of the early model FT-101 Serial No. < 25,000 (I have that model).?
a) The main circuit diagram attached, is for the early model FT-101, note the internal details of the plug in modules identified as 'MJ(1), (2), ...' are not provided on that circuit 'assembly' drawing, but the interface pins of the plug-in circuits (MJs & PB numbers) are provided.?
b) The numbers of the plug in modules for the early model to look for (early model) are PB-1077B for the main receiver RF plug-in PCB, High Frequency IF Unit (PB-1084C) and the low frequency IF unit PB-1080A, for example. If the circuit diagram does not reference the PB-1xxx numbers listed, it is a circuit diagram for a later model.
c) The Fox Tango site does have a readable pdfs of early model circuit diagrams with circuits of the early model plug in modules included.
????? ? I hope this is of help.
Regards.
On Sunday 23 February 2025 at 06:40:41 pm AEDT, dreynolds273 via groups.io <dreynolds273@...> wrote:
