Telefunken 6550 Matched Pair Vacuum Tubes

The Telefunken 6550 Matched Pair Vacuum Tubes provide a factory-matched pair of high-output power tubes for compatible tube amplifiers. Designed for warm tone, smooth overdrive, and stable power-stage performance, these 6550 tubes suit guitar amplifiers, hi-fi applications, and amplifier circuits that support 6550-family power tubes.

Choose this matched pair of Telefunken 6550 tubes when buying replacement 6550 power tubes for a guitar amp, upgrading a compatible hi-fi tube amplifier, or sourcing matched vacuum tubes for balanced amplifier response. The 6550 design supports full-bodied dynamics and strong output for players, technicians, and audio enthusiasts who need dependable tube performance.

Each tube is part of a matched two-tube set and is intended for compatible 6550, KT88, and 6550A applications. For best results, confirm amplifier requirements and biasing procedures before installation. These power amplifier vacuum tubes are suited for professional audio service, guitar amplification, and tube-based hi-fi systems.

Key Features

• Matched Pair: Includes two factory-matched Telefunken 6550 vacuum tubes for compatible amplifier power sections.
• High-Output Power Tube: Delivers up to 35 watts of output for supported amplifier designs.
• Warm Tube Tone: Supports rich dynamics and smooth overdrive in compatible guitar amplifier applications.
• Hi-Fi Compatible Use: Works well in suitable tube-based hi-fi systems that accept 6550-family tubes.
• Replacement Flexibility: Works in place of 6550, KT88, and 6550A tubes where the amplifier manufacturer allows compatibility.
• Professional Applications: Suited for amplifier technicians, guitarists, and audio users maintaining tube-driven equipment.

Technical Specifications

• Brand: Telefunken
• Model: 6550
• MPN: 6550
• Product Type: Power vacuum tube matched pair
• Tube Quantity: 2
• Tube Type: 6550
• Output: Up to 35 watts
• Compatible Replacement Types: 6550, KT88, 6550A
• Applications: Guitar amplifiers, compatible hi-fi amplifiers, tube amplifier service

What's in the Box

• 2 x Telefunken 6550 vacuum tubes, factory matched