For sale 1 x E188CC tube Philips SQ, factory code printed on tube VR4 4814. Sold as is, collectible item, as not working, very old and used tube we dont guarantee its function, it can work well 10 years, 1 year or one day. Also we tested it, in pics can be seen full test protocol, Ip 99/80%, gm 92/82%, gain identical 36.4 for both sections. Tested using radiomuseum specs, 100V plate -1.2V grid, for 100% expected results Ip 15mA gm 12.5mA/V gain 33.Listened in an amp, excellent sound.Price is for one tube, exact one + box seen in pics.Tested with Roetest V10, the Rolls Royce of tube testers [emissionlab quote], a wonderful german professional system for testing tubes, it shows everything about a tube. Just ask if you need more details, well answer fast.Please look to our other listings, many items bought with only one shipping paid, we combine shipping. We send next day after payment, priority airmail with tracking number. Please be patient with shipping time that can be surprisingly fast or disappointingly slow, depends only by post services. LOT: D118