6sn7w sylvania. This tube has a split 1945 Sylvania 6SN7W labeled for GE. Number Pulling the 6N8P driver (two sections paralleled in CC stage) and replacing it with NOS Sylvania 6SN7 made a HUGE improvement. Fantastic tubes. Sylvania 6SN7w on top A_5. Lot of two - JAN-CHS 6SN7W Vacuum Tubes. This is a strong tube that provides an You are bidding for one pair Sylvania 6SN7W Short Bottle Fat Base Black Plate Chrome Top Matched Pair carefully tested on my TV-7 as shown in photos and sound Sylvania 6SN7W-ECC33 Is Similar To: Tested 10-60 Tube Precision 6kd6 Sylvania(12. A perfect Gm match, and tested quiet on the Amplitrex AT1000. I use them in my Cary SLP-05 - and they're the best all around tube in the Cary that I tried. Number JAN CHS 6SN7W. Condition: Used, tested, and in good working condition. Identical 1945 date codes. Actual manufacturer Sylvania. 6% similar) Made by Sylvania, type 6KD6 vacuum tube as pictured. Made during WWII. 00 + $8. These pass gas and shorts tests and measure as new. It has a SYLVANIA JAN CHS 6SN7W Metal Base TALL BOTTLE Vacuum Tube Amplitrex Strong $325. 2 x CHS-6SN7gt Sylvania Tubes. The W designation is a special quality version of the GT variant designed to withstand severe Quad 6SN7W Sylvania Audio Tubes are a set of four high-quality vintage audio tubes, each individually encased in a durable glass envelope. The only other tube is as revered is Tung-Sol round plates. Very good testing and great sounding tubes! Close in Gm & Ip; Item description from the seller Matched pair 6SN7W Sylvania tall glass. One of the 6SN7W SYLVANIA (6SN7GT). Number 6SN7W. Tests 2300/2400 where 1640 is min good in a calibrated Hickok 539-B tester. Sylvania - Made in USA. They sound superb, Having never heard a Tung-sol 6SN7GT round plate, Sylvania 6SN7W with metal base, Swedish 33S30A, Mullard ECC33, and a few You are bidding for ONE pair slightly used Sylvania 6SN7W B65 Metal Base Black Plates Chrome Top NOS Tested Matched carefully tested on my TV-7 at 84-86 and 84-88 as Explore discussions and questions about audio tubes and glowing gear on Tubes Asylum, a dedicated forum for tube enthusiasts. The Sylvania 6SN7 6SN7A 6SN7W Metal Base Black Plates Chrome Top NOS Tested Matched $1,280 May 31, 2024 - Sep 12, 2025 [6SN7W / 6SN7A / 6180] 10000hrs minimum life. Outstanding pair of Sylvania JAN CHS 6SN7W short bottle tubes, with original boxes. Use Hifi Shark to monitor pricing and global availability Sylvania 6SN7 6SN7W B65 Metal Base Black Plates Chrome Top NOS Tested Matched $885. One of the first military types was Sylvania’s 6SN7W with its unique metal shell base. These tubes have 2 hole Bad Boy plates, foil getters and were made in the late 1940's. Will see how they compare to the Toshibas and RCA Greys. These test new and may be unused but I cannot confirm because I do not know their full history! Quad 6SN7W Sylvania Audio Tubes are a set of four high-quality vintage audio tubes, each individually encased in a durable glass envelope. The Sylvania tubes were just what I 6H8C, RUSSIAN 6SN7GT, MARKED MADE IN THE USSR MAY 1983, NOS 6SN7GT, BRIMAR, FAT BLACK BASE, ORANGE PRINT, FOOTSCRAY 실바니아 6sn7w 블랙 버전입니다. This is a very The metal base Sylvania 6SN7W is regarded as the best sounding USA made 6SN7 variant of all times. You are bidding for one pair slightly used 6SN7GT 6SN7W B65 Delco Made By Sylvania Metal Base Black Plates Good Tested carefully tested on my TV-7 and sound Tube 6SN7W or Röhre 6SN7W ID71332, Double Triode, Octal (Int. Often labeled with JAN-CHS (equals Sylvania-made military stock) The A is generally a You are bidding for one pair Sylvania 6SN7W Long Bottle Fat Base Black Plate Chrome Top Good Testing Values carefully tested on Sylvania 6SN7W Date codes? « on: 10 May 2013, 04:48 pm » Anyone assist with identifying a "G 5 Date" code for a Sylvania JAN CHS 6SN7W Any particaular WWII vintage best Logged Sylvania Gold Brand JAN-CHS-6SN7WGT I have always been a very big fan of this tube. Octal, IO) K8A, USA 1935 and Universal shown. The 6SN7 is basically two 6J5 triodes Sylvania JAN CHS 6SN7W Radio/Audio Tube, Metal Base, Military, Fair US $225. Still better and rare tall bottle version, tests very strong 2550/2600 (2600 as new). Tubes may also be operated under the 6SN7W Tested Audio Amp Preamp Audio Stereo Vintage Radio Vacuum Tube See Picture Box for Test Results , Tested Strong , 6SN7 vacuum tube dual triode made by Raytheon 6SN7 is a dual triode vacuum tube with an eight-pin octal base. See photos for full description. Sylvania 6SN7W tubes are also found in an assortment of high end electronics thanks to their durability and consistently high level of performance. 1 x JAN-CHS-6SN7gt Sylvania Tube. These are the same construction as the metal base but with bakelite bases. These were tested with a Hickok 6000A tube tester. Register today and start One pair extremely rare and very strong Sylvania JAN-CHS-6SN7W tubes with nickel collar base made in USA in 1940s. Value being 50/50 or same Welcome to USAudioMart, a classifieds site for used audio and hifi. It provides a medium gain (20 dB). Tubes may also be operated under the test conditions for extended periods to Find many great new & used options and get the best deals for Sylvania 6SN7W 6SN7A 5692 B65 6SN7GT Metal Base Tested NOS Matched Pair at the best online prices at eBay! Free Classified: FOR SALE - Sylvania 6SN7W nickel base, early military type, unique to Sylvania stiffening rod, single asking for $188. Used Tested. These tubes are one of the most Sylvania 6sn7w - Black base, SHORT Bottle - JAN (joint army/navy) tubes. An early type with a very smooth, well balanced sound. Tested on Enhanced Triplet E3444 Laboratory Tester. 00 + $18. Listening tested in a Maxi-preamp 2 noise tester for Can someone tell me the aprox age of the green lettered Sylvania chrome top tubes? They are slightly smaller in height tan the GE 6SN7 GTB tube. Early and very rare A versions of these tubes. We specialized in thoroughly These are quite rare and are superb. Navy anchor on the bases. These tubes are one of the most famous and sought after 6SN7 tubes made because I was told by some very experienced tube nuts that the best 6SN7 is the earliest version of Sylvania VT-231. IMHO, it is not significantly better I'd like to show you two couple of tubes, two Tung Sol 6SN7 GTB that are actually Sylvania made (I think from the 1960's) and a pair of Sylvania made JAN Philips 6SN7 GTA (I Tubes: our philosophy why same tubes have different prices Brand: SYLVANIA Type: 6SN7W Manufacturer and factory: SYLVANIA USA 3100 TWD 露天 2025-09-17 Sylvania JAN-CHS-6SN7W electronic tubes Matching pair 260 USD Audiogon 2025-09-14 Sylvania Sylvania USA 6SN7W Black 2 Rivet T Plate Chrome Dome S- Rods Tube 96% (No reviews yet) Write a Review SKU: BT9049 UPC: 6SN7 MPN: 6SN7 Availability: Ships in 1 Sylvania JAN CRC-6SN7W metal base military tubes made for the Navy. Thanks J You are bidding for ONE NOS Pair jan chs Sylvania 6SN7/6sn7gt Bad Boys 3 holes carefully tested on my TV-7 tightly matched at the NOS range of over 100/50 min good JAN-CHS-6SN7WGTA, 6SN7W, SYLVANIA, SHORT BOTTLE, GREEN PRINT, USN, OCTOBER 1954 PRODUCTION, 6SN7 5U4G, Mullard, Amerty, CV575 U52 Black 3 Rib Plate, Triple On sale is one matching pair of used vintage Sylvania JAN CHS 6SN7W electronic tubes. Use Hifi Shark to monitor pricing and global availability On sale is one matching pair of used vintage Sylvania JAN CHS 6SN7W electronic tubes. B5 manufacturing code - february 1945 production. Nominal values are given for reference on many tubes. Acid etched 6SN7A. Matched to about 9% difference and checked quiet on the Amplitrex AT1000. Fantastic Used Sylvania 6Sn7 for sale on 400+ second hand hifi sites & shops. Find many great new & used options and get the best deals for Pair of Sylvania 6SN7W Tubes – JAN CHS Military Grade, Short Bottle, TESTED at the best online prices at eBay! Free Tubes: our philosophy why same tubes have different prices Brand: SYLVANIA Type: 6SN7 WGTA Manufacturer and factory: SYLVANIA You are bidding for ONE pair unused Sylvania 6SN7A B65 Metal Base Black Plates Chrome Top NOS Tested Matched carefully tested on my TV-7 as shown in the photos Tested on Enhanced Triplet E3444 Laboratory Tester. MATCHED PAIR (2 TUBES). This is a suitable replacement for any The early Sylvania 6SN7W types from the 1940s had a metal collar around the base, then later a black base. 6SN7A on top k_4 & L_4 = Nov & Dec 1944. guys I have the triangle arts amps that came with the NOS rca 6sn7 which sound good BUT would like a little more air to the top end- what is the best on About this listing This listing is for one (1) Sylvania-made JAN-CHS-6SN7W dual triode vacuum tube in the straight-walled glass tube shape. I will include a couple pictures to give you an idea of what I’ve got. Is there any truth in it? I thought the RCA Used 6Sn7W Sylvania for sale on 400+ second hand hifi sites & shops. 00 shipping Very strong pair of these acclaimed tubes. Both tested with matching "Good" reading numbers of 110/110 on each using a SECO Model 78 There is a pair of tested (good) Sylvania JAN-CHS-6SN7W tubes. Radio tubes are valves. 실바니아 w급 답게 고음은 메탈과 비견할정도로 영롱하지만 저음에서 양감이 살짝 메탈보다 적습니다. Black ladder anodes. These Quiet and non-microphonic, as tested on the Amplitrex AT1000. That listing Sylvania JAN CRC-6SN7W metal base military tubes made for the Navy. I found a pair of Sylvania chrome tops 6SN7W in the box. The 6SN7W is an American glass tubular version of the mid 1930s metal double triode valve. Sylvania logo and print. One tube, circa 19, us. Actual Date code: A5. Soooo, how about the sound? Well. Utterly pristine perfect condition with shiny pins and excellent Sylvania 6SN7W £ 800 pair Sylvania 6SN7W £ 1400 quartet Category: Dual triode valves with eight pin octal base Description Reviews (0) Find many great new & used options and get the best deals for 2 x CHS-6SN7w Sylvania Tubes*Metal Base*Very Strong Testing*1944*#R21 at the best online prices at eBay! Free Further information: For sale is a pair of rare and very closely matched Sylvania 6SN7W short bottle tubes. You are bidding for ONE slightly used Sylvania 6SN7W B65 Long bottle (super rare) Metal Base Black Plates Chrome Top NOS For Sale: 2 Sylvania JAN-CHS-6SN7W short bottle tubes. ( Brand: Sylvania ), ( Model: JAN-CHS-6SN7W METAL BASE ), ( Type: Vacuum Tube ), ( Country////region Of Manufacture: Usa ), ( Country/region Of Manufacture: United States ) Does anyone have a good timeline for the different types of 6sn7 and 6sl7 that Sylvania made? Common wisdom is that the loctal versions of 7n7 and 7f7 plus the 12v 14n7 Find many great new & used options and get the best deals for SYLVANIA Jan Chs 6SN7W Preamp Vacuum Tube NOS 1945 at the best online prices at eBay! Free shipping for many Yes the point is that I'm not looking for the Sylvania bad boys (Which I believe is the 6SN7GT), but the Sylvania 6SN7W, which is why I linked that listing on ebay. These tubes are designed for use in a It was officially registered in 1941 by RCA and Sylvania as the glass-cased 6SN7GT, originally listed on page 235 of RCA's 1940 RC-14 Receiving Tube Manual, in the Recently Added Enjoy peace of mind with your new gear. . It is a metal base 6SN7W with black pates, support rod, incomparable USA 1950s design, Find many great new & used options and get the best deals for SYLVANIA Jan Chs 6SN7W Preamp Vacuum Tube NOS 1945 at the best online prices at eBay! Free shipping for many Although all Sylvania tubes of the WWII era are superb, some stand out above the rest. The Metal based versions have always struck a cord in my heart for their musicality and Legendary 6sn7 tube. Parcels Rare pair of Sylvania JAN CHS 6SN7W tubes. I bought these as spares, never used,. Both tubes are coded G5 on their tops and dated I5 with a marine stamp on their bases. I just currently finished a tube preamp using a 6SN7 dual-triode,I've heard of really good NOS tubes to use,like the RCA red base,Mullards,and other various tubes,but these are Review (MPN # 6SN7W for sale) SYLVANIA 6sn7w/a Nos Nib 100% Testing Free Strong Tubes I no longer ship to China Vietnam due lost packages in Custom's. WWII stock. Postings are free for hobbyists. This is a military grade/spec tube. Pair of Sylvania JAN-CHS-6SN7W vacuum tubes, tested on Amplitrex tube tester. New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is Read OK. Perfect for tube You are bidding on a matched pair of Sylvania 6SN7W ECC33 Chrome Top JAN Mil-Spec Tubes. (Note the lack of “GT”!) This had a stiffening rod added to the You are bidding for ONE used 6SN7GT 6SN7W B65 Sylvania Metal Base Black Plates NOS Tested Balanced carefully tested on my TV-7 and sound wonderful in my hifi system. Presentation was clean, but there was less gain than others. 00 The holy grail of 6SN7 type tubes for sound quality, musicality, naturalness, transparency, and open dimensional spacious sound. These tubes are designed for use in a Pr Sylvania JAN CHS 6SN7W Military Spec Tubes, Chrome tops-straight parallel plates with support rod, largest black phenolic bases, 1940s, Test Strong/Balanced. 50 Sun, Aug 31, 06:13 PM See original listing Sylvania JAN-CHS-6SN7W / 6SN7A Tested 67/65 on both sections in my calibrated Hickok Cardmatic Tube tester (no shorts, no gas, no rattle, no leakage). As pictured these tubes measure 96-91 / 50 and 95-100 / 50. Tested by Sylvania JAN CHS 6SN7W Mil-Spec Short Bottle Black Plate Chrome Top Made in USA The early Sylvania 6SN7W types from the 1940s had a metal collar around the base, then later a black base. These look internally alot like the early Sylvania GTA types listed above. 65 shipping Sponsored The Sylvania 6SN7W (black-base/short bottle) is still collecting yet higher prices, though the worst craziness seems to have slowed down. These look internally alot like the early 70 Sylvania 6SN7W (metal base ring, top getter early 1940s). You are bidding for one pair Sylvania 6SN7W Long Bottle Fat Base Black Plate Chrome Top Good Testing Values carefully tested on Find many great new & used options and get the best deals for 1 Pair Early Sylvania 6SN7W tubes at the best online prices at eBay! Free shipping for many products! 6SN7A 6SN7W Sylvania Valve. Made for the US Military and of vintage production. ls qq kl qa aw pv dg zc lb bh