SVETLANARare Matched Pair 6550C Winged C Valves TubesIndividually Tested & MatchedValve 1) Ia 84 - Gm 8.4Valve 2) Ia 85 - Gm 8.4Supplied in White BoxesMade in St Petersburg, RussiaUnused, New Old Stock As Per Photo PayPal Payment Only Please

SVETLANARare Matched Quad 6550C Winged C Valves TubesIndividually Tested & MatchedValve 1) Ia 89 - Gm 8.5Valve 2) Ia 89 - Gm 8.7Valve 3) Ia 89 - Gm 8.5Valve 4) Ia 87 - Gm 8.7Supplied in White BoxesMade in St Petersburg, RussiaUnused, New Old Stock

NEW GROOVE TUBES GT6550R (SVETLANA 6550 C ) VACUUM TUBE TESTED. THIS IS A BRAND NEW SVETLANA WINGED C 6550 C MADE IN RUSSIA THEN REBRANDED BY GROOVE TUBES IN CALIFORNIA. IT WAS RATED A 4 (1-10) TO INDICATE EARLY BREAKUP . THIS TUBE WAS PURCHASED AT THE GROOVE TUBES FACTORY IN CALIFORNIA WHEN GROOVE TUBES WAS SELLING OFF ITS INVENTORY AFTER THE COMPANY WAS BOUGHT OUT BY THE CHINESE (FENDER) IT HAS NEVER BEEN USED ASIDE FROM BEING PUT INTO MY JACKSON 648 TUBE TESTER. TEST RESULTS: LIFE TEST - PASS SHORTS/ LEAKAGE - PASS OUTPUT- 104% @ 39.5mA (70% is min good) MICROPHONICS- PASS THERE IS NO BOX BECAUSE IT CAME IS A PLASTIC TUBE THAT CONTAINED 4 OF THESE 6550’s. Sold as is seen in photos , test results may vary. Guaranteed NOS. This is a good tube with no issues. No returns unless the tube arrives damaged , I will package it properly.

For your consideration are two Svetlana 6550 Output tubes. These tubes were tested on a Hickok 539C where the minimum reading is 6250gm and the reading for a new tube is 9615gm or better. The tubes tested at 7,500gm & 8,500gm

NOS Svetlana 6550 Vacuum Tube Untested but never used

NOS Svetlana 6550 Vacuum Tube Untested but never used

NOS Svetlana 6550 Vacuum Tube Untested but never used

For your consideration are two Sevtlana 6550 Output Tubes These tubes were tested on a Hickok 539C where the minimum reading is 6250gm and the reading for a new tube is 9615gm or better. The tubes tested at 9000GM & 8000GM

NOS Svetlana 6550 Vacuum Tube Untested but never used

NOS Svetlana 6550 Vacuum Tube Untested but never used

NOS Svetlana 6550 Vacuum Tube Untested but never used

NOS Svetlana 6550 Vacuum Tube Untested but never used.

6550 Svetlana SEC Match Tested Pair. Up for sale is a rare pair of vintage matched Svetlana “Winged C” logo 6550’s. This is the best Russian production 6550 ever made. Fully Amplitrex tested strong in fixed bias mode @ 500V, see images for results. These saw light use in an Audio Research Power Supply. Tubes will ship in generic white tube boxes via USPS PRIORITY MAIL. Due to the nature of vintage/used vacuum tubes, these are being sold AS-IS with no returns accepted. I will guarantee them to NOT be DOA and to match test results on any Amplitrex AT1000 using the same settings and test parameters. Please ask any and all questions before purchase, thanks for looking!

NOS Svetlana 6550 Vacuum Tube Untested but never used

NOS Svetlana 6550 Vacuum Tube Untested but never used.

Wenn Sie von dem US Marktplatz bestellen, können für die Pakete Steuern und Zollgebühren anfallen, die der Käufer später tragen muss.Fabrik Platinum Passendes Paar Svetlana 6550 6550C Rohre, Brand Neu IN BoxDas Datenblatt dieses Produkts wurde ursprünglich auf Englisch verfasst. Unten finden Sie eine automatische Übersetzung ins Deutsche. Sollten Sie irgendwelche Fragen haben, kontaktieren Sie uns. Brandneue, werksseitig aufeinander abgestimmte Platinpaare von New Sensor Corp., NY. USA.   Alle Röhren sind eingebrannt, geprüft und gematcht in IP und GM, Datenaufkleber auf Röhrenbox.Der Preis gilt für ein passendes Paar (= 2 Röhren) Svetlana 6550/6550C-Röhren. Diese sind brandneu in Kartons, nie verwendet, hergestellt in Russland. ******* Dies sind KEINE Röhren der Marke „Winged C“, diese sind von New Sensor Corp. New York, USA, diese werden in Russland hergestellt ******** Brandneue, werksseitig aufeinander abgestimmte Platinpaare von New Sensor Corp., NY. USA.    Alle Röhren sind eingebrannt, geprüft und gematcht in IP und GM, Datenaufkleber auf Röhrenbox. Der Preis gilt für ein passendes Paar (= 2 Röhren) Svetlana 6550/6550C-Röhren. Diese sind brandneu in Kartons, nie verwendet, hergestellt in Russland. ******* Dies sind KEINE Röhren der Marke „Winged C“, diese sind von New Sensor Corp. New York, USA, diese werden in Russland hergestellt ******** MPN 6550C Brand Svetlana Type Vacuum Tube Model 6550C Country/Region of Manufacture Russian Federation

When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay.Factory Platinum Matched Pair Svetlana 6550 6550C tubes, BRAND NEW in BoxThis product data sheet is originally written in English. Brand New Factory Platinum Matched Pairs by New Sensor Corp., NY. USA.   All tubes are burned in, tested and matched in IP and GM, data sticker on tube box.Price is for one Matched Pair (= 2 tubes) of Svetlana 6550 / 6550C tubes, These are Brand New in boxes, Never used, Made in Russia. ******** These are NOT Winged C branded tubes, these are from New Sensor Corp. New York, USA, these are made in Russia ******** Brand New Factory Platinum Matched Pairs by New Sensor Corp., NY. USA.    All tubes are burned in, tested and matched in IP and GM, data sticker on tube box. Price is for one Matched Pair (= 2 tubes) of Svetlana 6550 / 6550C tubes, These are Brand New in boxes, Never used, Made in Russia. ******** These are NOT Winged C branded tubes, these are from New Sensor Corp. New York, USA, these are made in Russia ******** MPN 6550C Brand Svetlana Type Vacuum Tube Model 6550C Country/Region of Manufacture Russian Federation

Quando si ordina dagli Stati Uniti, i pacchi possono essere soggetti a tasse di importazione e dazi doganali, che lacqirente è tenuto a pagare.Fabbrica Platino Paio Combinato Svetlana 6550 6550C Tubi, Nuovo IN ScatolaQuesto foglio informativo sul prodotto è stato originariamente stilato in lingua inglese. Si prega di consultare appresso una traduzione automatica dello stesso in lingua italiani. Per ogni domanda, si invita cortesemente a contattarci. Coppie abbinate in platino nuovissime di fabbrica di New Sensor Corp., NY. STATI UNITI DAMERICA.   Tutti i tubi sono bruciati, testati e abbinati in IP e GM, adesivo dati sulla scatola del tubo.Il prezzo è per una coppia abbinata (= 2 tubi) di tubi Svetlana 6550/6550C, questi sono nuovissimi in scatole, mai usati, prodotti in Russia. ******** Queste NON sono valvole con marchio Waled C, queste sono di New Sensor Corp. New York, USA, queste sono prodotte in Russia ******** Coppie abbinate in platino nuovissime di fabbrica di New Sensor Corp., NY. STATI UNITI DAMERICA.    Tutti i tubi sono bruciati, testati e abbinati in IP e GM, adesivo dati sulla scatola del tubo. Il prezzo è per una coppia abbinata (= 2 tubi) di tubi Svetlana 6550/6550C, questi sono nuovissimi in scatole, mai usati, prodotti in Russia. ******** Queste NON sono valvole con marchio Waled C, queste sono di New Sensor Corp. New York, USA, queste sono prodotte in Russia ******** MPN 6550C Brand Svetlana Type Vacuum Tube Model 6550C Country/Region of Manufacture Russian Federation

Brand New Factory Platinum Matched Pairs by New Sensor Corp., NY. USA.   All tubes are burned in, tested and matched in IP and GM, data sticker on tube box.Price is for one Matched Pair (= 2 tubes) of Svetlana 6550 / 6550C tubes, These are Brand New in boxes, Never used, Made in Russia. ******** These are NOT Winged C branded tubes, these are from New Sensor Corp. New York, USA, these are made in Russia ******** Brand New Factory Platinum Matched Pairs by New Sensor Corp., NY. USA.    All tubes are burned in, tested and matched in IP and GM, data sticker on tube box. Price is for one Matched Pair (= 2 tubes) of Svetlana 6550 / 6550C tubes, These are Brand New in boxes, Never used, Made in Russia. ******** These are NOT Winged C branded tubes, these are from New Sensor Corp. New York, USA, these are made in Russia ********

Les commandes réalisées à partir des États-Unis, peuvent être soumises à des taxes dimportation et droits de douane, que lacheteur est tenu responsable de payer.Usine Platine Paire Assortie Svetlana 6550 6550C Tubes, Tout Neuf en BoîteCette fiche produit est originalement écrite en anglais. Veuillez trouver ci dessous une traduction automatique en français. Si vous avez des questions veuillez nous contacter. Nouvelles paires assorties en platine dusine par New Sensor Corp., NY. ETATS-UNIS.   Tous les tubes sont brûlés, testés et appariés en IP et GM, autocollant de données sur la boîte du tube.Le prix est pour une paire assortie (= 2 tubes) de tubes Svetlana 6550/6550C, ils sont neufs dans des boîtes, jamais utilisés, fabriqués en Russie. ******** Ce ne sont PAS des tubes de marque Winged C , ils proviennent de New Sensor Corp. New York, États-Unis, ils sont fabriqués en Russie ******** Nouvelles paires assorties en platine dusine par New Sensor Corp., NY. ETATS-UNIS.    Tous les tubes sont brûlés, testés et appariés en IP et GM, autocollant de données sur la boîte du tube. Le prix est pour une paire assortie (= 2 tubes) de tubes Svetlana 6550/6550C, ils sont neufs dans des boîtes, jamais utilisés, fabriqués en Russie. ******** Ce ne sont PAS des tubes de marque Winged C , ils proviennent de New Sensor Corp. New York, États-Unis, ils sont fabriqués en Russie ******** MPN 6550C Brand Svetlana Type Vacuum Tube Model 6550C Country/Region of Manufacture Russian Federation

When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay.Factory Platinum Matched Pair Svetlana 6550 6550C tubes, BRAND NEW in BoxThis product data sheet is originally written in English. Brand New Factory Platinum Matched Pairs by New Sensor Corp., NY. USA.   All tubes are burned in, tested and matched in IP and GM, data sticker on tube box.Price is for one Matched Pair (= 2 tubes) of Svetlana 6550 / 6550C tubes, These are Brand New in boxes, Never used, Made in Russia. ******** These are NOT Winged C branded tubes, these are from New Sensor Corp. New York, USA, these are made in Russia ******** Brand New Factory Platinum Matched Pairs by New Sensor Corp., NY. USA.    All tubes are burned in, tested and matched in IP and GM, data sticker on tube box. Price is for one Matched Pair (= 2 tubes) of Svetlana 6550 / 6550C tubes, These are Brand New in boxes, Never used, Made in Russia. ******** These are NOT Winged C branded tubes, these are from New Sensor Corp. New York, USA, these are made in Russia ******** MPN 6550C Brand Svetlana Type Vacuum Tube Model 6550C Country/Region of Manufacture Russian Federation