Just buy a pair of 114 or 115 milimeter internal diameter holder rings.
Attach those rings in the plate of the GP-DX mount and that's all.

Carlos


wrote in message
ups.com...
Hi, I'm planning to purchase a takahashi fs102s OTA with a GP-DX mount.
Could anyone tell me what kind of mounting plate do I need for the
takahashi tube holder. Visual only. Thanks