Mode Zero

Does anyone have any single conversion Futaba receiver crystals on channel 67 they no longer need?
Tried Ebay but they seem to rarer than hens teeth.

Cheers, Must have missed that Ebay sale.

I have a couple of 4 channel Corona synth receivers and 3 Futaba 6 and 7 channel receivers that I want to use with a Futaba Gold 7 channel transmitter and my converted Staveley digital.

2.4 is much simpler eh