I'm in the process of fixing up my semi working Delta Labs DL-4 delay, and making good progress.. I've fixed one fault (dying Tantalum) and pretty much diagnosed another fault (Faulty 4011 CMOS). My question is, with one of the PCB's, It's a total arse to get out etc.. too many jumpers etc. This raised a small thought, if I cut out the old IC, and removed the remaining pins etc, and wanted to solder in a IC mount, do you think it would be possible to do it all with no access to the underside of the PCB? I was thinking about getting one of those long wire wrap IC holders, cutting the legs a bit, and solder it so it's base is a fraction above the PCB, and use the solder to 'wick' to the underside of the PCB. Has anyone done this before? Any thoughts? PS - If this is in the wrong category, please move/remove. Regards Mike