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A closely matched pair of RCA 6550 KT88 tubes with date code 7613 indicating manufacture in the 13th week of 1976. These are the "Dual Halo Getter" versions with the metal ring and brown base.

These tubes were recently tested with the following results:

Tube #1: 91/105

Tube #2: 94/100

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Listeda year ago
ConditionExcellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.Learn more
Brand
Model
  • 6550 KT88
Categories

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Dharma Sound

landers, CA, United States
Joined Reverb:2018

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