AVT1727 A

AMPLIFIER PHONE AMPLIFIER - PRINTED PLATE

Producer: AVT

People with hearing problems do not hear a phone call or intercom. Often the reason is the low volume of the bell built into the device.

The project is not an amplifier in the literal sense. Rather, it can be called a sound comparator, which detects exceeding the set signal intensity, and then emits its own, much more powerful.

The current consumption at rest is approx. 10 mA, and during sound emission it increases to approx. 80 mA (mean value). The devices must be powered with + 12V, not necessarily stabilized, but well-flushed.

PCB dimensions 65x38mm

The printed circuit board and documentation are included.

A detailed description in EP2 / 13 or