At 04:12 23-07-16, Halasz, Andrew wrote: >Is anyone using an external battery pack to power the TetraMic via the >DC connector on the PPAc transmitter? This is referenced on the Core >Sound website. Is there any thing available that suits this purpose? > >Running phantom power on my portable recorder to the four mics goes >through batteries insatiably. I'm looking for an alternative phantom >power source.
Core Sound says: "When 48 Volt phantom power is not available, PPAc can also be powered by an external battery pack or AC power supply ("wall wart") via a DC power connector (1.7mm) on the PPAc transmitter. It requires 9 to 12 Volts DC at 10 mA minimum."
More to the point, what is the MAXIMUM current required? If not too great, and I cant see why it should be, you could make up your own box with LiON batteries. These and the adaptors are now reasonably priced on eBay. I use four Minolta batteries (NP400) to deliver +/- 15 volts for powering a couple of THAT1512 amps with ribbon mics. Each battery is rated at 1900 mAh. At 100 mA drain, that is nearly 19 hours.
David _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
