[Boatanchors] Shaft coupling of Bandswitch and RF Plate choke for SB-220

[Olaf Madsen]

I am fixing up a ''butchered'' Heathkit SB-220 for a friend and still need a 
couple of parts.---- the coupling used for the Bandswitch (Heath # 456-16) 
and the 50 mH RF Plate choke(Heath #45-61)

The bandswitch shafts are 1/4'' dia and have flats on both sides---

Haethkit used a coupling that has these flats to make sure that the switch 
segments get properly indexed.--in an ordinary coupling with just the round 
1/4'' hole ,the setscrews, by themselves, do not  necessarily provide 
reliable indexing.

Where can I buy or find these ''animals''--

 tnx fr ur help.---73 de Olaf,KF4TP---