[R-390] Another source for new gear clamps

[Richard]

Stock Drive Products at https://sdp-si.com/eStore/ has a large section 
of gear clamps that look almost identical to the ones in the R-390A.  
They are made with hex screws of course.  They are "Inch > Gears > 
Clamps > Rect. 1 End Radius (type C)".   They also have an assortment of 
oldham couplers "Inch > Couplings > Oldham > Commercial Series"  Minimum 
order is $50 or a $10 service charge is added but considering they want 
about $10 a clamp you can make that up pretty quick.   I haven't used 
them yet so YMMV but did add them to the "maybe list" for a prototyping 
project at work.

73 de Richard W5SRB