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★This is a pre-stage vacuum tube for a KT88PP power amplifier★

★★★★★ 4.9 rating · 43 reviews · 427+ sold
$69.30 $90.0900039672852 30% OFF
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Product Details

These are vacuum tubes that were used in the preamplifier section of a KT88UL connected PP 100W power amplifier.
Each channel uses three tubes: 12AX7, 12AU7, and 12BH7A, making a set of six tubes for two channels.
All six tubes are TOSHIBA Hi-S tubes for telecommunications.

The markings are mostly gone, but the description is accurate.

As these are old items, their operation is not .

Category
Amplifier
Condition
Some scratches/marks
Shipping
Included in price (by seller)
From
Gifu

Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.

Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.

Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.

Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.

Customer Reviews (43)

4.9
★★★★★
Based on 326 reviews
5 stars
90%
4 stars
10%
3 stars
0%
2 stars
0%
1 star
0%
M
User3295958
★★★★★
2026-11-10

Satisfecho con el rendimiento general.