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The bias point for 6L6GC tubes depends on the plate voltage that the amplifier is designed to use. Most amps using this tube run between 430-450 volts DC. The 6L6 bias point at 60% dissipation for an amp designed to use 450 volts is: 30/450 x .6 = .04 or 40mA.
Use this calculator to determine the bias current for an amplifier’s power tubes. Enter the plate voltage and type of power tubes to get the bias current at various levels of plate dissipation. Amplifier Tube Values
20 cze 2024 · Is there a formula or chart for finding the correct cathode resistor for biasing a 6l6 tube? According to my math I have 380v plate voltage running .074ma I...
With the plate voltage and milliamp values go to my Tube Bias Calculator. Select your tube type, enter the plate voltage and click a Calculate button. The 5F6A is a Class AB Fixed Bias amp so 70% of max dissipation is your safe limit.
25 wrz 2017 · The number 30 on your tube is for reference and reordering purposes and directly related to the recommended bias settings for your amplifier. The 6V6 tubes are your power tubes. You can find more information about Power Tube Matching on our website.
With a properly biased amp, the amplifier will work more efficiently and will accurately amplify the sound of the guitar, pedals, and preamp. An incorrect bias setting can result in crossover distortion, inefficiency, and can cause damage to the tubes and amplifier. This guide will cover fixed adjustable bias amps.
Select your tube type and amp class (Class A, Class AB Low, Class AB, or Class AB High) and enter your Plate Voltage or B+. The calculator will give you the bias current for each tube. Use this as a guide for setting your bias.
