...has finally given up the ghost. (7-speed triple, '92 Schwinn Crosscut.)
The second pic shows the exact piece that failed, resulting in no spring.
Might have something to do with it being about 28 years old?
I believe any long cage 6/7/8/9 speed RD will work, and since I'm leaving in ten days for a camping trip I'm kind of under the gun to get it replaced. So, I'm wondering if anyone has a parts bin RD, black, in a decent-quality model (Deore?), that they'd be willing to sell me.