100% Guaranteed Tubes We use only the best serviced & calibrated testers including: Hickok TV-7D/U, Triplett 3444, Space Tech 2.0, Maxi-Matcher & many more . Always checked for shorts, leaks, gas and Gm, Emissions or Plate Current where applicable. Visit our store to view our inventory of thousands of tubes.  A true NOS NIB matched quad of the famous original Genalex / GEC KT88 vacuum tubes. These are the more sought after 3 getter version. These are nearly impossible to find these days, especially in this condition. Most of what is sold on eBay as new, isn't, but these are. We know these are new because there are no signs of use, the getter flashing is full, silver and has no coloring or wear. Two of these also having matching date codes, and all of the codes a very close. Further, most sellers only test and match by Gm which really means nothing in circuit. The only real way to match power tubes is by plate current and that's what we matched these by, as well as Gm. We have a rock solid reputation - you can count on us. Tube Type / Number: KT88 Gm Test Results: 4610 & 4470 & 4570 & 4590 Plate Current Test Results: 38.00 Ma & 36.60 Ma & 40.40 Ma & 38.10 Ma
** Please note, many tubes will test NOS but will actually have a few hours of use on them. A truly NOS tube will have excellent getter flashing condition, no dirt/grime, usually in the original box, and no filament deposits. If a tube is listed as "tests NOS" but is listed as "not True NOS" please expect the tube to have a small amount of use *
Shipping WE COMBINE SHIPPING - EVEN IF YOU ACCIDENTALLY OVER-PAY FOR SHIPPING, WE WILL REFUND YOU THE DIFFERENCE! One Day or LESS Handling Time
Domestic & International buyers can choose USPS First Class Mail or USPS Priority Mail. USPS First Class Mail is our default shipping method. Other options available only by request.
Rates: For Domestic (USA) buyers shipping for the first tube, pair, or quad will cost $4.99 + $1.00 for each additional tube, pair, or quad. For International buyers, shipping for the first tube, pair, or quad will cost $9.99 + $2.00 for each additional tube, pair, or quad.
Typical transit times: Domestic USPS First Class Mail: 3-5 Days, includes tracking. Domestic USPS Priority Mail: 1-3 Days, includes tracking. International USPS First Class Mail: 3-6 weeks but up to 3 months! - NO TRACKING. International USPS Priority Mail: 6-10 Days - Includes Tracking.
INTERNATIONAL CUSTOMERS - READ ALL international orders will be shipped by USPS First Class Mail International by default, which is the cheapest method at . This shipping service is very cost-effective, but you will not be able to track your package. It usually takes 3-6 weeks for a First Class Mail International package to arrive, but can take UP TO 3 MONTHS FOR DELIVERY. We guarantee all of our shipments, but we do ask that our customers wait 3 months before we grant a full refund due to a lost package. We have shipped thousands of items internationally using First Class Mail and while we have had plenty take months to arrive, we have almost zero packages ever go missing. DEPENDING ON YOUR COUNTRY'S POLICIES, YOU MAY BE RESPONSIBLE FOR IMPORT TAXES WHEN ORDERING OVERSEAS FROM US. WE ARE NOT RESPONSIBLE FOR ANY TAXES, DUTIES, OR CUSTOMS FEES. WE WILL NOT FALSIFY THE VALUE OF AN ITEM TO AVOID CUSTOMS TAXES. DOING SO IS ILLEGAL AND CAN RESULT IN SEIZURE OF YOUR ITEM. Terms & Guarantee All of our tubes are 100% guaranteed to arrive as described, test as described, and sound as they should unless otherwise noted in the description. We even guarantee our tubes to arrive without having any sound-quality issues like microphonics or noise. You may return the item for any of these reasons up to 30 days after receipt and we pay for the return shipping. We do not accept returns for buyers remorse or in the even that you ordered the wrong item, please be sure before placing your order. Please NOTE - WE DO NOT ACCEPT RETURNS FROM CUSTOMERS WHO DECIDE THEY DON'T LIKE THE SUBJECTIVE "SOUND" OF A TUBE. Tube rolling is a lot of fun, but we cannot predict if you will think a tube is too "thin, bass heavy, etc" - everyone likes something different. Any returned tube must test within 10% of the original value. Any larger variation would indicate many hours of use or abuse and voids our guarantee. About Us |
