:I've recently acquired and repaired two Delco R-1235 sets and both have speakers that would probably benefit from a reconing. However, as previously discussed on another thread Electronix is out of stock of 5" cones. I've heard that Delco may actually be made by RCA and relabeled - the speakers are 5" PM type and mount from a bracket on the rear of the speaker in two places. Are these in fact common to RCA and any other AA5 sets or has anyone retrofitted a newer replacement speaker in place of one these type? Thanks!