User Manual for Telefunken EL84-TK Black Diamond Series Vacuum Tubes Click to enlarge the picture
Contents of the user manual for the Telefunken EL84-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 EL84-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 EL84-TK Black Diamond Series Vacuum Tubes is ideal for use in guitar amplifiers and hi-fi equipment in homes, studios, and live stage applications. For personal enjoyment or commercial recording, they grant a detailed, bell-like chime and clearly distinguished sound. In a smaller footprint than an EL34, these pentode tubes deliver a characteristic "British" tone and up to 17W of output power. - Ideal replacement for any EL84/6BQ5 tube
- Thermionic valve of the power pentode type
- Great for guitar amplifiers and hi-fi equipment
- Originally designed for the output stages of audio frequency amplifiers
- Delivers up to 17W while remaining compact
- Similar to an EL34 with a lower output power
- When overdriven, EL84 power tubes contribute to a distinctive chiming and articulate sound when compared to 6L6 tubes
- 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 EL84-TK Specs | | | Type | R.F. output pentode | | Base | Noval | | Number of Pins | 9 | | | | Voltage | 6.3 V | | Current | 760 mA | | | | Capacitance | Grid #1 to Cathode: 10 pF
Plate to All Except Grid #1: 5.1 pF
Grid #1 to Plate: 0.6 pF
Grid #1 to Heater: 0.15 pF | | | | Voltage | Plate Voltage: 300 V
Grid #2: 300 V
Grid #1: -100 V
Cathode to Heater Voltage: 100 V | | Current | Cathode Current: 65 mA | | Dissipation | Plate Dissipation: 12 W
Grid #2 Dissipation: 2 W | | Resistance | Grid #1 Resistor (Automatic Bias): 1 MOhm
Grid #1 Resistor (Fixed Bias): 0.3 MOhms | | | | Voltage | Plate Voltage: 250 V
Grid #2 Voltage: 250 V
Grid #1 Voltage: -7.3 V
Grid #1 Driving Voltage (when PO = 50 mW): 0.3 V
Grid #1 Driving Voltage (when PO = 6 W): 4.3 V | | Current | Plate Current: 48 mA
Grid #2 Current: 5.5 mA | | Transconductance | 11.3 mA/V | | Resistance | Cathode Resistor: 135 Ohms
Plate Resistor: 5.2 kOhms
Internal Plate Resistance: 40 kOhms | | Output Power | 5.7 W @ 10% THD with fixed grid bias
6 W when Ig1 = 0.3
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