Miniature dynamic mic pickups out of 140-160 Ohm earplug capsules

Pickups, magnets, microphones, amps, speakers, cabs, whatever...

Miniature dynamic mic pickups out of 140-160 Ohm earplug capsules

Postby Mikheil Tsitsishvili » Thu Jun 14, 2018 11:07 am

Hello,

I got recently interested in building new pickup-system for my new OM acoustics. In other instruments I do have installed little ECM Oktava microphones, however due to a significant costs and cutting the new guitar's body for some on-board preamp/EQ, I would like to build a new dynamic mic-based pickup this time .....

Being not sure of those little dynamic microphones available locally, I tried and tested few high-quality earplug capsules by Sennheiser, Nokia and others ....... the results were really impressive but only with higher coil-impedance 120-160 Ohm capsules by Samsung; Sennheisers and Nokias were only of 24-32 Ohm .....

So this is how the story begun! And now, I am searching for some PRE-preamp circuit to get the <1mV sensitivity capsules boosted up to 20mV ........

Does anyone experimented with such little dynamic capsules ? Any work-horse PRE-preamp circuits available ?

Thank you for your feedback!
Attachments
Samsungs _ 2 _ 140 Ohm.jpg
Samsung earplug dynamic capsule
User avatar
Mikheil Tsitsishvili
 
Posts: 5
Joined: Tue Aug 20, 2013 6:49 am
Location: Republic of Georgia

Return to Electronics

Who is online

Users browsing this forum: No registered users and 0 guests

Your purchase from these sites helps support the MIMForum, but only if you start at the links below!!!
Amazon music     Amazon books     Amazon tools     Rockler tools     Office Depot    

The MIMF is a member-supported forum, please consider supporting us with a donation, thanks!
 • Book store • Tool store • Links • 
cron