These tubes don’t have Sylvania boxes, as they were originally packaged in a bulk box. I assure you they are NOS. Excellent feedback from prior quad sold. I matched this quad from a group of 20 tubes. Tested 78, 78, 79, and 79 on restored, calibrated B&K 747. Everything in the group tested 77-81. AS-IS - no returns unless faulty.

Sylvania 6CA7 / EL34 Fat Bottle Matched Quad This listing is for one quad (4 tubes) Sylvania 6CA7 - EL34 Fat Bottle tubes. . Tubes test as NOS and are matched within 5% across the entire quad. These tubes sound fantastic in our Willsenton R8 amp when paired with Bugle Boy 12AX7s and Telefunken 12AU7s in the phase splitter position. Buyer pays calculated USPS Ground Advantage shipping.Expedited shipping available for additional fee. Free 30 day returns.

I have one Sylvania 6CA7 / EL34 Fat Boy Vacuum Tube. I tested it today on my calibrated TV-7D/U and with minimum of 30 it tested NOS at 52. Tube has double OO solid getters. $4.45 shipping in the US.

Sylvania 6CA7 / EL34 Fat Bottle Matched Quad This listing is for one quad (4 tubes) Sylvania 6CA7 - EL34 Fat Bottle tubes. . Tubes test as NOS and are matched within 5% across the entire quad. These tubes sound fantastic in our Willsenton R8 amp when paired with Bugle Boy 12AX7s and Telefunken 12AU7s in the phase splitter position. Buyer pays calculated USPS Ground Advantage shipping.Expedited shipping available for additional fee. Free 30 day returns.

Sylvania 6CA7 / EL34 Fat Bottle Matched Quad This listing is for one quad (4 tubes) Sylvania 6CA7 - EL34 Fat Bottle tubes. . Tubes test as NOS and are matched within 5% across the entire quad. These tubes sound fantastic in our Willsenton R8 amp when paired with Bugle Boy 12AX7s and Telefunken 12AU7s in the phase splitter position. Buyer pays calculated USPS Ground Advantage shipping.Expedited shipping available for additional fee. Free 30 day returns.

Sylvania 6CA7 / EL34 Fat Bottle Matched Quad This listing is for one quad (4 tubes) Sylvania 6CA7 - EL34 Fat Bottle tubes. . Tubes test as NOS and are matched within 5% across the entire quad. These tubes sound fantastic in our Willsenton R8 amp when paired with Bugle Boy 12AX7s and Telefunken 12AU7s in the phase splitter position. Buyer pays calculated USPS Ground Advantage shipping.Expedited shipping available for additional fee. Free 30 day returns.

For your consideration are two Sylvania 6CA7 EL34 Vintage Tubes. Matching date codes of ac. These tubes were tested on a Hickok 539C where the minimum reading is 3800gm and the reading for a new tube is 5846gm or better. The tubes tested at 6750gm & 7000gm

Sylvania NOS EL34 6CA7 Vacuum Tubes For sale I have a new in original box Sylvania Fat Bottle EL34 6CA7 vacuum tubes. An exceptional match. Notice I am testing transconductance at 250 and 400 plate volts and current draw at 400 plate volts. Tubes carefully tested for transconductance, current draw, shorts, gas, life and leakage. No tube is sold that has any gas, leakage or fails life and strength tests. Photo is of the actual tubes on auction. I take a great deal of pride in the honesty of my representation and the quality of my customer service. There will be no unwelcome surprises with my tubes....guaranteed. Test Results:7200 and 7300 gm (Triplett 3444)49.0/5.61 and 49.5/5.66 ma/gm (Maxi Matcher) Minimum:3800 gm (Triplett 3444) Test Equipment: Hickok 539C w/ Fluke 73III multimeter Triplett 3444 Hickok KS-15874-L2 Cardmatic Maxi Matcher w/ Sola CVS Regulated Power Supply The Hickok 539C is a highly regarded transconductance tester. The Triplett 3444 is one of the finest testers ever made. Exceptional in every aspect. Superb with directly heated triodes. The Hickok KS 15874-L2 is a commercial version of the wonderful 118 Cardmatic. In my opinion, and the opinion of many tester experts, this is the best tester that was made by Hickok. A real gem. The Maxi-Matcher is a useful tester for measuring current draw and transconductance at 325/400 plate volts with 5 bias voltage settings. Very good with 6V6s and EL84s, this tester falls a bit short of true operating levels on 6550s, EL34s, 5881s and 7027s. Still much better than most suitcase testers for measuring power pentodes. I do not trust the minimums on this tester and they are therefore not listed. The industry standard by default. ALL of my testers (except Maxi) have been calibrated and redone by Chris Haedt. ===== Fully Guaranteed! ===== Money back on these tubes if they do not operate and test as described! ALL my items on eBay are genuine, authentic and original. As with all of my auctions, authenticity is assured so please feel free to bid with confidence! Shipping: U.S./Canada: FREE First Class/ Ebay International: Ebay All tubes shipped within 24 hours of payment verification. Tubes are shipped upright, in oversized boxes with packing peanuts and bubble wrap. Additionally, I insert filler in each tube box to prevent movement of the tube within the box. Bulk lot tubes will not be individually boxed. Looking for more quality tubes? Check out my other auctions. Take a look at my feedback and bid with confidence. Combine auctions and save on shipping! Fine Print Only place a bid when you are seriously interested in this particular piece and when you are truly willing to fulfill all the obligations according to eBay rules. After Winning an Auction, according to eBay rules, please respond within three days! Payment including actual shipping & insurance fees is expected within 10 days. I use the U.S.P.S. exclusively for shipping. Quoted shipping prices DO NOT include insurance. Often, I will require Paypal users to insure shipments and/or use trackable shipping methods with signature verification. If the buyer chooses not to insure a parcel, I am not liable for loss, damage or theft. If payment is not received within 10 days, the item will be relisted and negative feedback will be given. I reserve the right to refuse Paypal payments from buyers without verification or a confirmed address. Thanks!

Here are five NOS Sylvania 6CA7 EL 34 tubes. Check pictures. All in original boxes, never used. Tested on my TV-7/U where minimum good is 30, new reading is 46. Tubes = 56, 56, 54, 54, 48. No shorts or gas. Multiple items combined to save on shipping costs. (DS EL34 box)

I have 1 Excellent nice sylvania fat bottle welded plate EL34 Tube.This tube test 42 where 30 is the minimum good and new tubes test 48 to 50 on are tv7 tube tester.

Sylvania 6CA7/EL34 vacuum tube NOS/NIB tested Germany. Tested on my Jackson tester with no shorts or leakage detected. Results were 100%. Needs put into service not sitting on my shelf!

I have 2 Excellent very Strong lightly used or new sylvania fat bottle EL34 tubes.The boxes for these tubes was unsavable