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Ill start my real tests after school. WHOLE rig running! Im sure we'll get a much more accurate picture of the JB3s draw!
Even taking out the .80 fudge factor since the low current draw improves efficiency we're still only talking 150 mA draw. Seems awfully low. Hmmmmm...what's going on here...can the NJB3 really draw so little current while recording?!?
Quote from: Brian Skalinder on April 11, 2004, 04:23:50 PMEven taking out the .80 fudge factor since the low current draw improves efficiency we're still only talking 150 mA draw. Seems awfully low. Hmmmmm...what's going on here...can the NJB3 really draw so little current while recording?!?So, now the JB3 draws 150? Wow, from a full amp to .15? Who's got a multi-meter?
just to clarify. are you running JB3 (w/ 2 internal batts)> Creative Brand Car Adapter> some hacked cable > 12v 7.2ah SLA
Oh! And Alex, it isn't that I don't trust your testing, I just wanna give it a go myself before festival season hits (control freak, you see).
A TI PT78HT205 and a couple of caps will get you regulated +5V at 2A with a huge input range of 9-28 VDC. Total parts cost is under $20 from DigiKey even in single unit quantities. Wastes less power than a 7805, too...
Quote from: fozzy on April 12, 2004, 12:51:32 PMjust to clarify. are you running JB3 (w/ 2 internal batts)> Creative Brand Car Adapter> some hacked cable > 12v 7.2ah SLAJB3 (w/ 2 internal batts) > Creative Brand Car Adapter> some hacked cable > 12v 7.2ah SLA You just hack off the cigerette adaptor and solder a 4 pin in its place