Dent Removal - Brass Toff Instrument Repair

Euphonium Technical Repair and Bell Restoration | Brass Toff

Leave a Comment / Euphonium / Russ Marsh / April 18, 2026

The structural integrity of a euphonium bell is compromised when the brass substrate exceeds its elastic limit. Clients from Widnes often present instruments with severe bell flares, requiring a complete mechanical assessment of the rim wire and material thinning. In this instance, the bell section exhibited significant longitudinal creasing and a complete loss of the […]

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Technical Trumpet Repair and Bell Restoration | Brass Toff Lowton

Leave a Comment / Trumpet / Russ Marsh / April 9, 2026

A Vincent Bach Stradivarius recently arrived at the Brass Toff workshop in Lowton for comprehensive structural remediation. Serving clients from Macclesfield, we frequently analyze instruments with severe bell flare distortion. This specific trumpet exhibited multiple compound creases and significant radial deformation, which disrupts the standing wave patterns necessary for accurate pitch centering. Restoration of the

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Technical Restoration of Valve-less Hunting Horns | Brass Toff

Leave a Comment / Uncategorized / Russ Marsh / March 9, 2026

The diagnostic phase for this valve-less hunting horn revealed significant calcification and internal debris accumulation. When performing general mechanical assessments at our Lowton workshop, we prioritize the removal of organic matter that impedes airflow. The internal bore must be chemically cleaned to ensure the surface roughness does not interfere with the standing wave patterns required

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Conn 88H Restoration: Analyzing Deformation and Tolerances in Vintage Brass Repair

Leave a Comment / Trombone / Russ Marsh / February 7, 2026

The assessment of this Conn 88H trombone revealed severe plastic deformation across the bell flare and slide crook. Initial mechanical integrity checks indicated that internal bore alignment was compromised by localized impacts. Before addressing the geometry, standard procedure involved ultrasonic cleaning to eliminate internal calcification deposits and organic residue. These deposits, acting as internal friction

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Before and after dent correction on a vintage Boosey & Hawkes Imperial Baritone horn.

Vintage Brass Restoration: The Imperial Baritone Rescue

Leave a Comment / Baritone / Russ Marsh / January 12, 2026

We recently undertook a formidable restoration challenge: a classic Boosey & Hawkes Imperial Baritone Horn that presented significant cosmetic and structural compromise. These vintage instruments are revered for their tonal quality and robust build, yet decades of active use can leave them heavily scarred. This particular horn arrived with severe trauma, exhibiting deep indentations and

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