HAM power deskmic with speech processor

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fjpompeo

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Hi all,

Want do build a power deskmic with speech processor based on the LA3210 or KA2220 or even TA7137 IC. Must have a magnetic (direccional) mic pre amplifier.

Input 600ohms, output 600ohms, Vcc=6Vcc.

Regards,

Fernando
 

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