WTB 2 receivers compatable with the 3PDF's

[tmunn]

I am looking for 2 reasonably priced RX's for the Futaba 3PDF system on channel 74 or 75 on the FM band.

I know the R113F, R123F and R133F will work but not sure what else is if any are compatable.

Thought I would try here and The Dock before Flea-bay.

Thanks