We use a 24 hour courier service but please allow up to 3 days handling time as a lot of our items are large and timeconsuming to package. Many thanks :) We reply to emails between 9am - 5pm (Monday - Saturday) 17x 6336B and 1 6336A valves. I cant test these safely on my tester as they pull too much current ... but these were all from the stock of the late, great Glenn Croft’s, i personally collected them from his work shop.There were a few with ‘low’ written on them.. which i ahve disgared, so i’m confident in these all being good. Mostly Cetron. Please inspect the pictures (please also use the zoom function on the photos) and be sure of what you are buying, please don’t buy this if you are at all unsure, I will answer any questions you have, just email BEFORE PURCHASING. This is a used item and has been fairly described to the best of our ability, it has not been serviced by us, just described in it’s current operational and cosmetic order. If you are not happy with any item, we can arrange collection from you for a full refund (even if you are outside the UK) We will not provide any partial refunds and will not cover any restoration, detailed or internal cleaning, repairs or modification costs. Any questions regarding out of eBay deals will be ignored Any items suspected missing in transit, must be reported to us within 10 days. Shipping We ship using a 24 hour courier. Please allow up to 3 days handling time as a lot of our items are large and take time to package well. Collections Collections from our unit in Bordon are available on Wednesdays and Fridays. Visit our storeHi-Fi Hangar Vintage hifi specialists Other PROJECTS, SPARES & REPAIRS HI-FI & AUDIO EQUIPMENT AMPLIFIERS DISK PLAYERS (CD/DVD/MD/SACD) TUNERS CASSETTE/TAPE DECKS SPEAKERS STUDIO EQUIPMENT TURNTABLES/RECORD PLAYERS CARTRIDGES TONEARMS MERCHANDISE T-SHIRTS ACCESSORIES Payment We take payment through the ebay managed payment system, Shipping We ship using a 24 hour courier. Please allow up to 3 days handling time as a lot of our items are large and take time to package well. _gsrx_vers_1634 (GS 9.6 (1634))