Description
Selling four vintage KT88 output valves that came with a pair of custom monoblocks which I recently sold separately.
The original glass markings have faded, so I cannot confirm the manufacturer. The tubes have different internal plate structures, indicating they are not a factory-matched quad. The handwritten numbers on the bases appear to be previous tube tester readings, but I cannot verify their meaning.
Condition
Vintage used valves
Glass is clear with no white getter (vacuum appears intact)
Pins are in good condition
No cracks or chips
Printing has largely faded
Sold as pictured
These tubes were working perfectly before I replaced them with a new matched quad of TAD KT88-STR valves. To my ears, these vintage tubes actually sounded better than the new TADs, but as always, sound quality is subjective and will depend on the amplifier and system.
Pickup is welcome, or I can post Australia-wide at the buyer's expense.
WARRANTY INFORMATION (Private Seller)
The item being advertised is sold "as is", and no warranty should be assumed unless otherwise indicated and agreed between the Buyer and the Seller. Photos representing the item being advertised form part of the description unless otherwise specified.







English (US)