Description

Historic TubeMuseum, Tuxedo Park, New York Established in 1928 as a premier research facility in Tuxedo Park, New York, that attracted such brilliant and most visionary minds of the twentieth century - Albert Einstein, Werner Heisenberg, James Franck, Niels Bohr and Enrico Fermi to name a few. The Tuxedo Park lab attracted these top-flight scientists who experimented with audio, sound, time measurement, and radar (first klystron tube). Welcome to the ... Visit this seller's eBay Store! TUBE MUSEUM NEW YORK Made in Holland TUBE MUSEUM "CERTIFIED" TUBE CERTIFIED TUBE MUSEUM TESTED HOLLAND FRAME-GRID DESIGN AMPEREX HOLLAND E88CC 6922 ACTUAL PICTURES PHILIPS S.Q. LOGO! TUBEMUSEUM CERTIFIED TESTED ON AMPLITREX AT1000 NEW NEVER SOLD FROM THE 1960's! ..."NEW IS NEW IS NEW !!!"... FACT: Most tubes on the internet test poorly with only 70%-80% or less mA! Here you have exemplary testing Matched pairs with the following test results: TUBE 1: ( AVAILABLE ) in A ctual Pictures tube 1: 12,500mA/V / 12,500mA/V (100%/100%) DELTA Δ 8D2 CODE IMPOSSIBLE TO FIND IN "REAL NOS" ANYWHERE ELSE CERTIFIED TRUE MEASUREMENTS TESTED ON AMPLITREX AT1000 NEW NEVER SOLD FROM THE 1960's! HEERLEN HOLLAND FACTORY ALL ARE PICTURES OF THE TUBE YOU WILL RECEIVE WITH THE DELTA Δ CODE GENUINE 1968 HEERLEN HOLLAND AMPEREX 6922 E88CC ALL TUBE MUSEUM TUBES ARE TESTED IN THE "FIXED-BIAS" MODE Most vintage tube testers test tubes by using fixed bias. So, if you are trying to compare test results between the AT1000 and other testers, this is the best way. The Tube Museum ALWAYS choose the "fixed bias mode" while testing our tubes. We only test in the "fixed-bias" circuit, this way drift or aging of the tube will not be compensated for, and your tube’s TRUE performance will be displayed on the LCD display, so you KNOW what you are REALLY buying! Here is the "6922" Amplitrex Set-Up Data Screen. The heater is a TRUE 6.3 volts, testing at the correct 90 eP with a mA Specification of the true factory data of 15.0mA and a GM or mutual-conductance (also known as mA/V) of 12.5mA/V or 12,500 Gm. There's no fooling around at the Tube Museum with meaningless claims like "tests strong!", or some arbitrary number like "the tube test 82 with a minimum of 75" and no maximum stated! We always give you the test results FACTORY-DATA so you can compare with the real factory data sheets in mA and mA/V, just like the original factory data sheet! (specifications). PASSED THE AMPLITREX DIGITAL TESTS = NO GAS and NO HEATER-TO-CATHODE LEAKS! zero (0) Heater-to-Cathode leakage ACTUAL PICTURES OF THE TUBE WITH THE DELTA Δ CODE Δ = PHILIPS AMPEREX HEERLEN HOLLAND "O" Getter and Frame-Grid GRAY ELECTROSTATIC-SHIELD As you can see, this tubes has a CLEARLY VISIBLE 1968 Factory Code! The "musicality" and test measurements of these tubes are phenomenal TubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be. Terms of Auction PLEASE READ: 1. IMPORTANT: PLEASE VERIFY YOUR PREAMP No zero (0) status bidders without permission, or we reserve the right to cancel your bid. International Buyers – Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These Import tax charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. Per eBay's terms of service which every eBay account holder must agree to as part of being an eBay member, a bid is a legally binding contract. Please read the Terms & Conditions carefully before bidding. By bidding on this auction, you understand and agree to eBay's terms of service as well as all terms and conditions mentioned here. Buyer pays all shipping, Item must be in original condition including cosmetic lettering on tubes so handle with white-glove care, un-used with all original boxes, packing material, environmentally safe cornstarch pellets, and shipping box. ALL RETURNS subject to a 10% handling charge. Absolutely NO RETURNS on special orders or best-offer deals. All sales are final with NO RETURNS on self installed mic tubes. All exchanges must be pre-paid and returned in original packing, complete with no sign of wear or abuse, exactly the same condition as it was when you received it. In the event that the product is not in the same condition, and does not test the same as you received it, you will be subject to a refusal and return, a determined restocking fee, repair charge, or disqualification. RETURN AUTHORIZATION (RA) number and instructions is required before sending any items. Shipping and handling charges are non-refundable. We do not guarantee that your tester, or your tester's measurements will be the same as the Amplitrex AT-1000. Older testers, different testers, or the same tester may report different test measurements, and may not measure the same tube meaningfully (due to current dependency), accurately (due to calibration difficulties) or consistently (due to internal circuit drift) There is no warranty or returns based on what any other tube tester reports. THE COST OF ALL USA SHIPPING INCLUDES INSURANCE, TRACKING NUMBER AND DELIVERY CONFIRMATION No zero (0) status bidders without permission, or we reserve the right to cancel your bid. Buyer is responsible for all import duties at price paid for item(s). Visit this seller's eBay Store! TUBE MUSEUM NEW YORK NOTICE: All text & images © 2002-2023 Copyright © of The Tube Museum New York © All Rights Reserved By entering this site you are agreeing to be bound by the terms of this agreement. All photographs and text appearing in the Tube Museum New York (TubeMuseumUSA) site(s) are the exclusive property of The Tube Museum New York © (except where stated otherwise) and are protected under international copyright laws and treaties. They are made available for your personal viewing enjoyment only. No images or unique text are within the Public Domain. The photographs and text may not be copied, reproduced, redistributed, manipulated, projected, used, or altered in any way without the prior express written permission of The Tube Museum New York ©. The unauthorized reproduction or distribution of a copyrighted work, pictures, and text is illegal. 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