[Ron Ramirez]

Mike

I will have to look at the parts list again to see whether Philco specified an electrolytic for part (151). I assumed that if it is electrolytic, then it must be a nonpolarized electrolytic. The nonpolarized electrolytics were widely used for speaker crossovers, as you know, until fairly recently when polypropylene and metalized foil replacements became affordable. Nonpolarized electrolytics are still being sold, but I think the foil and poly units are edging electrolytics out for speaker crossovers.