RCA 6SN7 GTB TUBE LEGENDARY 1957 TOUGH DOGS 2 HOLE BLACK PLATES MATCHING SET

Description: RCA 6SN7GTBLEGENDARY '1957' TOUGH DOGSBOTTOM D GETTER RECTANGULAR MICA TOP2 HOLE BLACK LADDER PLATESMATCHED SETExtremely Rare (Ships In *RCA Boxes) ★★★ Amazing Historic Tubes ★★★Production Year: 1957Matched Codes: KO Platinum Label Tall Black BaseSet of Two (2) Tubes***The Tubes Pictured are the Tubes Offered***Made In the U.S.A. ★★★ These Tubes are Very Rare in Good Working Condition ★★★ BEST TUBES ON THE MARKET... NO SHORTS... NO LEAKS... ★★★ HICKOK TESTED ★★★Tested on Hickok 750 for Emission, Mutual ConductanceWhere 50 mA is Good these tubes peg at 65/68 for EmissionWhere 2,600 μA is Good these tubes peg at 2,700/2,800 for Mutual ConductanceTube 1. Plate 1. - 65 mA - 2,700 μA at Idle Plate 2. - 67 mA - 2,700 μA at IdleTube 2. Plate 1. - 65 mA - 2,700 μA at Idle Plate 2. - 68 mA - 2,800 μA at IdleNicely Balanced - Rare and Exceptional - Full Tonal RangeEXCLUSIVE HIGH FIDELTY TUBE All of my Tube Inventory is Boxed and Thoroughly Tested... *Test Ratings are Specific to My Fully Calibrated Test Equipment! The tubes are put through a Life Test and each plate is warmed and measured for emission, leaks and shorts! Each tube is thoroughly inspected, they are described accurately and listed based on fair value... My Return Policy: 30 Days - Seller pays return shipping! All tubes are Guaranteed to be as described... You can buy with complete confidence! Please read listing thoroughly and ask any questions prior to purchase... Tube rolling will not be tolerated! Any and all returns must be in identical condition as when they were received... Test Driving Vintage NOS Tubes is completely unacceptable and highly unethical! Buyer will be charged for mishandled and damaged returns... All tubes manufactured emit some type of sound, hum or slight microphonic! Noisy tubes would always be auctioned or tossed... I mark every tube in order to avoid tube rolling! Variations in Line Output and Test Equipment excludes any claims regarding matching test results on any equipment other than mine... *Test results from different Test Equipment IS NOT Guaranteed!International Buyers Welcome! I use eBay Global and USPS 1st Class International exclusively, unless otherwise stated... I am unable to change declared value on customs forms, and International Buyers are responsible for all taxes, customs and additional fees! Each tube is fully insured, boxed and shipped safely... ★ Expedited Shipping ★★ Shipping times may vary based on region ★★ *Honesty, *Reliability and *Integrity are *Everything ★

Price: 58.75 USD

Location: Atascadero, California

End Time: 2024-09-11T12:56:13.000Z

Shipping Cost: N/A USD