Yes, they used to make a Damper width "cookie" - just plug the damper tube into the cookie, then into the set. In the cookie was just a low-pF cap, around 100pf or so.
I still have a NOS one, from Workman (before they were Workman, they were Dunwell)
http://www.videokarma.org/showpost.p...5&postcount=10
Yours for 5 bucks, postage included.
Cheers,