2Pcs Low Distortion High Voltage OPA2604 Opamp Driver Board PCB for Tube Amp

Description

Description:
JCDQ199K amplifier push-pull operational amplifier OPA2604 phase-inverted push-pull amplifier empty board (42×49mm): This circuit uses OPA2604 dual-operation phase-inverted push-pull amplifier from the US "BB" company. OPA2604 is an operational amplifier specially developed for audio equipment. It adopts laser trimming technology and is suitable for driving 600Ω loads. It is currently one of the few operational amplifiers that can be supplied with a rated ±24V DC power supply. The supply voltage of most op amps is not greater than ±18V. OPA2604 is used in the inverting push-pull circuit of the tube amplifier. The positive and negative signals are symmetrical and the distortion is small, the conversion rate is fast, the linearity is good, the expanded bandwidth, the signal-to-noise ratio is high, the volume is small and the power saving is another shortcut to reduce the distortion of the tube.
In this circuit, the two amplifiers inside the OPA2604 dual op amp are respectively connected into inverting amplifiers and then connected in series. The gain of the first stage amplifier is 20 times, the gain of the second stage amplifier is 1, and the input signal is from the inverting input terminal. Input, so the output signals of the two amplifiers are opposite in phase and equal in amplitude, and the output complementary signal voltage amplitude reaches 44V-pp, which can fully drive 6P1, 6P14, 6P15, 6P6P, 6AQ5 and other electronic tubes for push-pull power output.
Board size: 48×40mm, high-frequency glass fiber board thickness 1.6mm, can work when connected to ±24V, and there are 4 fixed holes on the board for easy installation.
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2Pcs Low Distortion High Voltage OPA2604 Opamp Driver Board PCB for Tube Amp