Hi all,
I'm looking for a cheap battery box that I can get fast to power my CA-14's. I have an STC-9100, but it's back for repair, so I just need something to power the mics and hold me over for some recordings while it gets fixed.
I looked at sound professionals but didn't see anything.
Or, perhaps alternatively, can someone provide me with a schematic of how to make one? I'm an electrical engineer so should be able to whip something together fairly easily.
I found the attached schematic online. Will this work with the CA-14's? Is it really as simple as a 4.7 k resistor, battery, and a 1u cap?
Thanks
Were the sound pros ones too expensive? They will definitely work with the CA14. I believe the cheapest one is $39 or so if I remember correctly..
Microphone Madness also makes them. $49.95 for cheapest. http://microphonemadness.com/categories/battery_filter_module_stereo.html
Interesting. Thanks for the replies guys. I finally found them on sound professionals (note they call them battery module as opposed to battery box). Cheapest I saw was $59.
I think I'll build a quick one tonight. Thanks for the input mshilarious -- I'll probably bump the resistor and cap values up a bit depending on what I can dig up here at the office...
Quote from: pianogineer on July 14, 2010, 09:35:51 PM
Interesting. Thanks for the replies guys. I finally found them on sound professionals (note they call them battery module as opposed to battery box). Cheapest I saw was $59.
I think I'll build a quick one tonight. Thanks for the input mshilarious -- I'll probably bump the resistor and cap values up a bit depending on what I can dig up here at the office...
I build a cheap battery box for $29.00 with a build time of 1 week. Anyway if you want to do it your self use a 10k + 10uf cap... I build all my battery boxes that way.
Thanks for all the tips guys. Just made it and it works great!
Just curious Chris, with your mics, what voltage that (10k) gives you at the capsule?
Dave