[CR]Spoke-to-cog spacing?

Example: Framebuilders:Alex Singer

From: "bit_eimer" <bit_eimer@cox.net>
To: <classicrendezvous@bikelist.org>
Date: Thu, 19 Oct 2006 14:58:04 -0700
In-Reply-To: <MONKEYFOODfpT8vWyu900001610@monkeyfood.nt.phred.org>
Subject: [CR]Spoke-to-cog spacing?

Hi all,

I've been refurbishing my last Ellis-Briggs and run into a little problem. Three different rear derailleurs (NR, Jubilee, off-topic newer Campy "Rally") that I've tried all want to run into spokes on the top cog. At first I attempted to deal with this by using a freewheel spacer, but now it really looks like that gap is too large. Now I'm suspecting that the drop out is bent in a tad, thereby angling the der cage in too far.

So my question is: what is typical minimum cog-to-spoke spacing (70's era components)?

...Derek Davis, Phoenix