which receiver used around 1982

[V12]

I´m looking for information which receivers for the old Futaba servoplugs were used around 1982. I have a Futaba R2GS what seems a little older, maybe there are also other receivers with a smaller size.

[CAT3K]

I think they might be a bit earlier, but the M series receivers would be about right. I forget the exact model numbers, but i think the 2M was the 2 channel used for cars, although there were loads of versions up to 6M.

Paul.