Tda1308 Pre Amplificador Stereo 3 V-6 V Itytarg

Product description: Super-small volume microphone front stage amplifier dual channel design, suitable for single lithium battery power supply, philips original tda 1308, suitable for low voltage power supply (3v-6v). Note: the microphone amplifier board does not have a power supply voltage-stabilizing circuit, use only battery or linear voltage-stabilizing power supply, cannot use switch power supply, otherwise there will be interference.

Working voltage: dc: 3v-6v

Plate size: 33mm x 20mm

Note: if only one channel is needed, the input of another channel needs to be with gnd. Short-docking (avoid interference signal stringing) If the default magnification is deemed inappropriate, you can change the magnification by yourself, as follows: Magnification adjustment: R7, r5 is a magnification multiple set resistance(By default, the delivery is about 5 times larger, and can vary the magnification times depending on your own needs. the resistance can be selected from 5k to 47k. the larger the resistance, the higher the magnification times, and if the plug-in resistance is used, the original patch resistance can be removed and soldered to the solder plate set aside at both ends of the patch)