🔎 Historical Perspective
This King 3BF Tenor Trombone, built in the early 1970s, is a fine example of one of the most influential small-bore F-attachment designs ever produced. The King 3B family has been a jazz and commercial music standard since the 1950s, and the 3BF version adds useful low-range flexibility without sacrificing the classic King response.
This example showed typical lacquer wear for its age but remained a straight instrument with no signs of major trauma or bell repair. The slide was truly excellent — smooth, fast, and quiet — and the trombone had just received a full shop service including chemical cleaning, alignment, and mechanical inspection so it was ready for immediate use.
The 3BF features an 8" yellow brass bell paired with a .508 bore lightweight nickel silver handslide. This combination delivers a bright, focused sound with strong projection and a certain sweetness that players often associate with King instruments from this period. Many advancing students and developing professionals consider the 3BF an ideal first trigger trombone because of its balance, manageable weight, and versatility.
Equally at home in concert band, jazz band, pit orchestra, or small ensemble work, horns like this remain popular decades after production. It included the original case in good functional condition.
The Brass Exchange has been serving brass players and collectors since 2010, helping musicians evaluate instruments and preserving historically important models through our archive program.
📷 Older Photography Note – Archive Image Context
These photos on this listing come from an earlier period of our shop photography. They still accurately document the instrument and its condition, but may not reflect our current studio style. They are preserved as part of the historical record of this vintage King 3BF trombone.
✅ Common Questions
Is the King 3BF good as a first F-attachment trombone?
Yes. Its manageable weight, quick response, and classic tone make it one of the most recommended first trigger trombones.
What makes early-1970s King trombones special?
They are known for strong slides, consistent build quality, and the classic centered King tone.
How much is a vintage King 3BF worth?
Value depends on condition, originality, and service history. Archive examples like this help establish realistic market expectations.
🔧 Availability & Archive Status
This trombone has been sold and is now part of our Archive of Sold instruments. Archive listings remain online to help collectors and musicians research instrument history, specifications, and values.
📌 Archive Reference & Next Steps
Have a King trombone sitting in storage, downsizing a collection, or trying to decide the best way to sell? We help players and families determine value, explore trade-ins, and safely consign vintage brass instruments every week.
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This King 3BF tenor trombone is now shown as a historical reference for collectors and players. 📌
