Sorry the Futaba Receivers are R123F and R133F, got the letters the wrong way round.
I am having trouble getting the photos on my PC but the link shows what it looks like.
R133F
http://www.updaterc.com/V2/catalog/i...taba/R133F.jpg
R123F
http://catalogo.hobbymacias.com/images/1270150.jpg
Not sure about compatability with Sanwa / Airtronics, would think they would work fine as they are not the HRS ones, also they worked fine with my Hitec Transmitter and obviously my 3vcs