Hey guys, anyone making a fully compatible "after-market" spectrum receiver for with the Airtronics RDS or Futuba spectrum radios???

I use 72MHz radios, have been since my last HAM band died some 20+ years ago. I have many - 6 Hitecs and 3 Airtronics (2 Vanguard 6ch and a one year old RD8000, which I love to fly with) and one Futaba. I've also got a strong collection of 30 to 35 receivers from various major brands, mostly after-market brands that match either - or + or are auto-switching. ALL were very cheap in comparison to the VERY high cost of spectrum receivers.

And that is the crux of why I haven't switched to 2.4GHz, as much as I'd like to buy a RDS8000 - I have too many 72 RXes, they are dirt cheap even for high quality and 2.4 RXes are over-priced.

Are there any after-market spectrum receivers fully compatible with Airtronics or anyone of the major brand spectrum radios?

Will there ever be Corona, BlueBird, Hitec compatibles at near 72's prices? Till then, there is no prying my fingers from all my 72's.