Intercom to the buggy in helmets

[Vermes]

This intercom is used to communicate during the buggy drive. It can be also used for motor.
The device was built from an old stereo amplifier from Samsung computer speakers and two preamplifiers. A great advantage of the system is that the people driving can talk in full duplex system, what means both of them can speak at once. This happens through a combination of the first input with the second output and vice versa. First input is connected by a cable with the microphone in the helmet and amplified signal will be heard at the first output in the second helmet.



Simple computer heasdet with microphone was used in the helmet.

Link to original thread (useful attachment) – Interkom do buggy w kaskach

 

[Li_ereunpisan]

whether I could see the schematic



thx