SPECTROL 63S SERIES TRIMMER POTENTIOMETER STOCK NO. 594-63S501 The Spectrol 594-63S501, a 3/8 inch square, single turn, 500 ohm trimmer potentiometer, will no longer be stocked by Mouser. Availability is limited to present inventories. It will continue to be available as a non-stock item, subject to minimum order requirements. NON-STOCK P/N REPLACEMENT 594-63S501 652-3386C-1-501 5-1200-17