Audio ResearchKT-88 NOS tubes, 8 matched tubes,Audio Research KT-88 NOS tubes, 8 matched tubes, Amplitrex testedI have for sale (eight) emissions matched Audio Research labeled KT-88 tubes, These are new old stock tubes and never used or installed in equipment. They all have the same date codes from 2006 a...250.00

Audio Research KT-88 NOS tubes, 8 matched tubes, Amplitrex tested [Template]

Listing ID: lis8bg0b Classified 
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eight Audio research KT-88 tubes
tube boxes with original test results
Time Left: 21 Days
This listing has ended.
Condition
10/10
Payment methodsPaypal card
Ships fromSt. Paul, MN, 55122
Ships toUnited States
Package dimensionsunspecified
Shipping carrierFedEx
Shipping cost$19.95
Agon miniAverage Research Pricing

I have for sale (eight) emissions matched Audio Research labeled KT-88 tubes, These are new old stock tubes and never used or installed in equipment. They all have the same date codes from 2006 as well. The KT-88 output tube is a deluxe version of the 6550 output tube....the KT-88 tube handle more Current and has a higher output. It's a drop in replacement for a 6550 tube plus you gain a few more watts per channel on your amplifier.
The tubes have been tested twice, once 11 years ago from the manufacturer using a vintage Hickok tester and again by me recently using a modern Amplitrex tubes tester. As can be seen in the pictures,the tubes have the test results from the Hickok tester written on the base of the tubes.

Here are the test results using the Amplitrex...the first number is emissions and the second number GM or transconductance
109E/109GM, 108/109, 109/108, 108/106, 109/109, 108/107, 107/107, 108/110

Please keep in mind, when replacing output tubes on tube amplifiers the tube bias settings must be re-calibrated. So make sure to check your owners manual or contact the amplifier's manufacturer for instructions to make sure you have the skills to re-bias your tube amp.
These tubes are from the estate of an long time audio research employee. Audiogon does not have a (new old stock) condition rating so they are listed as mint.

I will ship the tubes via Fed-ex ground fully insured. The tubes will come in generic white tube boxes. Continental USA sales only.
If you have any questions about the tubes please email me before buying them.

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Return Policy
Return Window

Item can be returned within 7 days of receipt.

General Terms

Items must be returned in their original condition, with all included packing materials and no signs of use. Buyer assumes responsibility for all shipping return costs unless the item was not received as described.

Refunds

Buyer will receive a full refund in the original payment method less any shipping charges.

Special Conditions

7 day return for defective tubes.

Seller Information

wethe22 

Last 12 months
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Member since April 2003

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