Check the listing for details. BEST NOS RCA 6CX8 Vintage Tube for Fender Super Twin Amp CB-19 Hallicrafters. Condition: New. Listed at 9.95 USD. Visit this seller's eBay Store! TubeMuseum Price is each!Bid one (1) for one (1) tube, or Bid two (2) for a Pair! Medium Mu Triode - Sharp Cutoff PentodeTypeSubstitutes6CX86AU8*, 6BH8, 6JL8, 6KR8, 6BL8, 6EB8, 6GN8, 6HF8, 6JA8, 6JE8, 6AU8A*, 6AW8*, 6AW8A*, 6JV8*Notes:* - Parallel filamentsAUTHENTIC 1960's RCA USARadio Corporation of AmericaMade in the UNITED STATES OF AMERICA 6CX8 Fender used this valve in the Fender Super twin amplifiers and used the RCA valve as original equipment If you own this amp it's worth getting a few Museum Quality Amplitrex Tested sparesALL PICTURES ARE OF THE ACTUAL TUBE YOU WILL RECEIVE MADE IN 1960's How can anyone buy a tube without knowing the real specifications? How can anyone take a chance with their precious amp? Most of the tubes sold elsewhere just say "tested" on xyz tester! Consider the reality of purchasing this tube for your precious Fender without "full-disclosure" of the ACTUAL test measurements! You most likely will get a weak, mismatched, noisy, under factory spec in multiple sections tube - that's why others just say "tested" or "tests good", which is not acceptable for your equipment. ! You MUST be sure that EACH section of the 6CX8 "triode-pentode" tube is near or above 100% and there are no heater-to-cathode uA leaks. At the Tube Museum we make sure each of the 4 sections of the tube are at RCA factory spec. and with zero (0) no uA H-to-K leaks!RECOMMENDED IN:- CB-19, CB-17, CB-9, HT-20 MK 1, Hallicrafters - FENDER SUPER TWIN MUSICAL INSTRUMENT AMP - HP 214A PULSE GERERATOR - Ray-Tel TWR-2 Reverb Driver: 6CX8 (pentode Section) Reverb Recovery TEST MEASUREMENTS FOR THESE TUBES WERE TESTED IN THE FIXED-BIAS MODE Reverb Recovery: 1/3 6C10 Active EQ: 6CX8 (triode section)GREAT TUBES from 1960's USA! ALL TUBES HAVE THE "RCA STOP-SIGN U.S.A. ACID CODES" ALL PICTURES ARE OF THE ACTUAL TUBE YOU WILL RECEIVEYOU CAN NOT GO WRONG IN YOUR GUITAR AMP OR AUDIO AMP WITH A NOS RCA USA MADE TUBE! CERTIFIED LOW-NOISE TESTED 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 Auction100% SATISFATION 30-DAY MONEY-BACK GUARANTEEInternational Buyers - Please note: Import duties, taxes, and charges are not included in the item price or shipping cost. These 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. We do not low declare and we insure for full value.100% SATISFATION GUARANTEE Please SEE my other ebay Auctions : Visit this seller's eBay Store! TubeMuseum.0 Price is each!Bid one (1) for one (1) tube, or Bid two (2) for a Pair!