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User Manual for Telefunken 6550-TK Black Diamond Series Vacuum Tubes Click to enlarge the picture
Contents of the user manual for the Telefunken 6550-TK Black Diamond Series Vacuum
- Product category: Tube Microphones Telefunken
- Brand: Telefunken
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Telefunken Tube Microphones
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User manual for the Telefunken 6550-TK Black Diamond Series Vacuum contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Telefunken product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Telefunken user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Telefunken product will considerably shorten its lifespan!
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Product description This matched pair of Telefunken 6550-TK Black Diamond Series Vacuum Tubes is ideal for use in Leslie cabinets and guitar, bass, and keyboard amplifiers in homes, studios, and live stage applications. For personal enjoyment, live performance, or commercial recording, they grant the essence of a 6L6 with increased gain and enhanced stability. In a slightly larger footprint than a 6L6, each beam pentode (or power tetrode) tube delivers up to 35W of output power and extended longevity. - Ideal for use in Leslie cabinets as well as guitar and bass amplifiers
- Design based on the 6L6, but with more gain and enhanced stability
- Inspired by the classic 6550, which was developed by Tung-Sol in 1955
- Delivers up to 35W at the tube output
- Extended longevity means fewer tube changes over the years
- Each tube is meticulously measured for all critical parameters of performance including transconductance, gain, noise, and microphonics
- Tubes are selected by hand, rigorously tested, subjected to an extended burn-in period for stability, and remeasured before final packing
Table of Contents
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Technical parametersTelefunken MATCHED PAIR OF 6550-TK Specs | | | Type | A.F. beam pentode | | Base | Octal | | Number of Pins | 7 | | | | Voltage | 6.3 V | | Current | 1.6 A | | | | Capacitance | Grid #1 to All Except Plate: 14 pF
Plate to All Except Grid #1: 12 pF
Plate to Grid #1: 0.85 pF | | | | Voltage | Plate Voltage: 600 V
Grid #2 Voltage: 400 V
Grid #1 Voltage (negative bias value): -300 V
Grid #1 Voltage (positive bias value): 0 V | | Current | Cathode Current: 175 mA | | Dissipation | Plate Dissipation: 35 W
Grid #2 Dissipation: 6 W | | | | Voltage | Plate Voltage: 250 V
Grid #2 Voltage: 250 V
Grid #1 Voltage: -14 V | | Current | Plate Current: 140 mA
Grid #2 Current: 12 mA | | Transconductance | 11.8 mA/V | | Resistance | Internal Plate Resistance: 16 kOhms | | | | Dimensions (H x Diam.) | 4.33 x 1.69" / 110 x 43 mm (excluding pins)
4.92 x 1.69" / 125 x 43 mm (including pins) | | Weight | 3 oz / 85 g |
Rating70% users recommend this product to others. And what about you?
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