12au7 driver stage

 · It has a gain output of , making it perfect for the preamp stage of an amplifier, allowing it to drive the power section harder, and enabling it to reach high levels of overdrive and distortion. The 12AX7 is used in many audio preamps and in guitar effects pedals, and .  · The input stage of the amplifiers consist of a preamplifier and cathode phase splitter using a ECC82, a driver stage using a ECC99 and cathode followers using a ECC82 tubes. The output stage uses four B directly heated power triodes in a parallel push-pull configuration. The output power is .  · The topology is simple: 12AX7 initial gain stage using the grounded cathode topology, followed by a balanced load inverter using the other half of the 12AX7, followed by a 12AU7 grounded-cathode driver stage.

It has a gain output of , making it perfect for the preamp stage of an amplifier, allowing it to drive the power section harder, and enabling it to reach high levels of overdrive and distortion. The 12AX7 is used in many audio preamps and in guitar effects pedals, and comes in many different versions and brands. The 12AU7 is used as a power amplifier phase inverter (some people call this a driver) in many tube amplifier designs as it is capable of delivering much more current than a 12AX7. It's function is to balance the AC signal and to supply voltage and current for the power tubes. The topology is simple: 12AX7 initial gain stage using the grounded cathode topology, followed by a balanced load inverter using the other half of the 12AX7, followed by a 12AU7 grounded-cathode driver stage.

A 6N1P tube is used for the input (driver) stage. SRPP 12AU7 / EL34 SE. 1,, Electronic Audio Circuits: SRPP 12AU7 / EL34 SE. The differential pair (long tailed pair) is a phase inverter with two inputs, The ECC82 (12AU7) is an excellent choice for a clean / bass amp. The 12AU7 driver increases the 5V to approx 50V RMS to drive the KT88 These capacitors block DC from each preceding stage and only let.