SYLVANIA VT-231 "1940's Mil Spec" BAD BOY Tubes PLATINUM MATCH on AT1000 6SN7GT

SYLVANIA VT-231

$254.91 Buy It Now or Best Offer
free,30-Day Returns

Seller Store nova.76
(2946) 100.0%,

Location: Brunswick, Maryland
Ships to: US,
Item: 266826842544

Restocking Fee:No
Return shipping will be paid by:Seller
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
SYLVANIA:SYLVANIA
Type:Preamp Tubes
VT-231:VT-231
MPN:10-20015 / 10-21009
Country/Region of Manufacture:United States

Sylvania VT-231 1940’s “Military Spec” Tubes2-Hole “Bad Boy” Plates – Bottom “Foil” Getter – TESTS NOS Tube 1 Labeled SYLVANIA JAN-CHS-6SN7GT: Vintage 1944 MAY (E4)Tube 2 Labeled SYLVANIA JAN-CHS-6SN7GT: Vintage 1945 MAR (C5) Triple Platinum Matched on AT1000These 2-Hole Military Spec Bad Boy Tubes were made in 1945 for the US Military for use in Radar Equipment and also the servo motors that opened the bomb bay doors… Almost impossible to find in matched pairs anymore as they have been all gobbled up by audiophiles… THESE ARE THE REAL DEAL!!! Please Read My Feedback and Buy with ConfidenceI Stand Behind Everything I Sell Amplitrex AT1000 Test Results GM 95%+ = Within NOS Specs EM 90%+ = Within NOS Specs (GM) Mutual Conductance 2600 = SPEC (EM) Emission 8.0 gV = SPEC Noise Test (Mu) Tube Gain TUBE #1 2600/2550 (100.0/98.1%) 7.7/7.6 (96.3/95.0%)5/5 20.7 19.7 TUBE #2 2530/2600 (97.3/100.0%) 7.6/7.8 (95.0/97.5%)5/5 19.4 20.8 TUBE #3 N/A N/A N/A N/A TUBE #4 N/A N/AN/A N/APERFECT = 0.0% (5% or Less = Outstanding)Balance (Balance Goal = Mhos < 5% / Gv < 10%)Tube 1: A to B = Mhos - 1.9% Gv - 1.3%Tube 2: A to B = Mhos - 2.7% Gv - 2.5%Match (Tube 1 to Tube 2) (Match Goal = Mhos < 5% / Gv < 10%)Tube 1A to 2A = Mhos - 2.7% Gv - 1.3%Tube 1B to 2B = Mhos - 1.9% Gv - 2.5%Noise Test Scale: 5 = Ultra Low; 4 = Very Very Low; 3 Very LowTube Gain Scale : 20 Mu (+ or -) 3 Mu = Nominal About BULLzTUBEz:I've been an Audiophile for over 50 years, 2 time National Champion in Car Audio and owned a chain of Car Stereo Stores... I have a massive collection of vacuum tubes specializing in mostly esoteric tubes but I have just about any tube you need. Just check the store for the listed inventory. If you have a request just send a message to NOVA.76 through the eBay messaging system... I stand behind everything I sell... My goal is to "Create a Positive Experience" for my customers... About our TUBEz:All tubes are tested with the Audiophile in mind for SHORTS, GAS, MUTUAL CONDUCTANCE and NOISE (large tube lots are not tested for noise). All our tubes are tested thoroughly on an Amplitrex AT1000... My backup tube testers are an AVO MKiv and another Amplitrex AT1000... I WILL NOT GUARANTEE THAT MY READINGS WILL MATCH YOUR READINGS... Warranties:Used or vintage items are sold as is with no warranty beyond the description and photographs provided on the listing. Returns will NOT be accepted for reasons such as: ordered the wrong item, changed mind, not what I thought it was, wrong color ordered, wrong item ordered or tube readings don't match my tester. Any exceptions are on a case by case basis and subject to a 15% restocking fee... Shipping:Domestic Shipping to the continental United States will be by the US Postal Service (USPS) including free tracking. Some items listed will ship free and will be clearly listed as "free Shipping". Items not listed as free shipping will be for the cost of packaging plus shipping only, no extra charge will be added to the USPS fee. INTERNATIONAL BUYERS PLEASE CHECK THE SHIPPING CHARGES PRIOR TO BIDDINGInternational Shipping will be offered for select items and will be clearly identified in the listings Shipping & Payment tab. Shipping will be by the "eBay International Standard Shipping" and be made available as a shipping option at check-out. Shipping costs to international locations will be paid by the buyer. The shipping and handling cost will be clearly identified at check-out. THERE ARE NO RETURNS ON INTERNATIONAL SHIPPING, apart from the exceptions as dictated by eBay... Please note the following:Import duties, taxes and charges are not included in the item price or shipping charges. These charges are solely the buyer’s responsibility.Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying.These charges are normally collected by the delivering freight (shipping) company or when you pick the item up – do not confuse them for additional shipping charges.We do not mark merchandise values below value or mark items as ‘gifts’ - US and International government regulations prohibit such behavior.

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