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Audio communications microphone preamp/compressor box with PCB - repost

This is for those with knowledge of radio and communications systems out there : I would like to build a small board for use with radio communications that would provide a small 3 channel mixer to allow using a condenser microphone with XLR connector. This will require a 48 vdc phantom supply with switchable on/offI would like to use the Signetics NE570 compandor to give me good compression - as in a broadcast station. I would like to have an LED VU display - LM3915 or equivelent, to be able to calibrate to avoid overrmodulation. There will be four inputs: condenser, dynamic/headset, OEM microphone. There should be two outputs - USB interface for audio out using CM??? USB-Audio IC. All powered from 12 vdc wall wart.

Milestone 1 - meet and discuss the project prior to making the final [url removed, login to view] to work with someone to arrive at a schematic (Milestone 2) and then have that schematic tested (I would order a PCB based upon the files you provide) Allow for 2 iterations of changes to schematic/PCB design.

Kỹ năng: PCB Layout

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Về Bên Thuê:
( 0 nhận xét ) taipei, Taiwan

Mã Dự Án: #4551003

3 freelancer đang chào giá trung bình $605 cho công việc này


Hello Sir. I can do what you need with quality and reliability. Please read more about me and about my proposal at on the Private Messages box. Thanks for your time!

$412 USD trong 10 ngày
(21 Đánh Giá)

Hi i can help you,see samples of works in portfolio

$526 USD trong 10 ngày
(14 Đánh Giá)

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of ha Thêm

$526 USD trong 3 ngày
(3 Đánh Giá)

Most interested in this project

$876 USD trong 3 ngày
(0 Đánh Giá)