SED TubesWinged C 6550usedSED Tubes Winged C 6550 2 Matched Quads NOS TubesRare and almost impossible to find SED 6550 Winged C Tubes. A full set which I purchased as a second set for my Audio Research REF 210 Monoblock Amplifiers. Check out listings on eBay for comparabl...798.00

SED Tubes Winged C 6550 2 Matched Quads NOS Tubes

Listing ID: lis9a7ja Classified 
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Time Left: 12 Days

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Asking Price: $798.00

New Retail Price: $1,000.00

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Condition
10/10
Payment methodsPaypal card

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Ships fromWestfield, NJ, 07090
Ships toUnited States
Package dimensionsunspecified
Shipping carrierFedEx
Shipping cost$20.00
Original accessoriesBox
Agon miniAverage Research Pricing

Rare and almost impossible to find SED 6550 Winged C Tubes. A full set which I purchased as a second set for my Audio Research REF 210 Monoblock Amplifiers. Check out listings on eBay for comparable prices. The good stock tubes are typically over $125.00/tube. After production ceased, some factory seconds made it to the market. These were purchased in 2013 and the original purchase receipt is included. If the buyer has a a pair of REF 210's, I will include the (2) 6N1P's with the sale.

Questions for the seller
what are the date codes on the tubes?
The only code present on the tube is 1136. I will post an additional picture.
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