I've got some recordings made on a W-G Special Recordio in the late 50's. Most of the recordings are at 7.5ips. Can any one confirm that all W-G tape recorders were NAB eq? Or did they offer CCIR for export use? I ask because the machine was used in Chile (which is a whole other can of worms...a 115V 60Hz machne used in a 220V 50Hz environment...it's a mess). Thanks, Jeff