Become a Site Supporter and Never see Ads again!

Author Topic: JB3 external power  (Read 60283 times)

0 Members and 1 Guest are viewing this topic.

Offline F.O.Bean

  • Team Schoeps Tapir that
  • Trade Count: (126)
  • Needs to get out more...
  • *****
  • Posts: 40713
  • Gender: Male
  • Taperus Maximus
    • MediaFire Recordings
Re:JB3 external power
« Reply #180 on: April 12, 2004, 07:58:37 AM »
please do brian;-)

i prolly wont have my 12v plus car kit for a month at least, but if you dont do it, i'll give it a go asap!!!
Recording Gear:
Schoeps MK 4V & MK 41V ->
Schoeps 250/0 KCY's ->
Naiant +60v/Low Noise PFA's ->
DarkTrain Right Angle Stubby XLR's ->
Sound Devices MixPre-6 & MixPre-3 ->
SanDisk 128gb Extreme Pro & 64gb Ultra Plus SDXC-I

Portable Playback Gear:
Campfire Audio Dorado IEM's >
Linum G2 SuperBax & Bax {3.5mm} | 
FiiO LC 2.5c {2.5mm} >
Shanling Audio M5s | Sony NW-A35 DAP's

DAW:
Dell Inspiron 15 5570-5521 Laptop

http://www.archive.org/bookmarks/diskobean
http://www.archive.org/bookmarks/Bean420
http://bt.etree.org/mytorrents.php
http://www.mediafire.com/folder/j9eu80jpuaubz/Recordings

Offline Brian Skalinder

  • Complaint Dept.
  • Trade Count: (28)
  • Needs to get out more...
  • *****
  • Posts: 18886
  • Gender: Male
Re:JB3 external power
« Reply #181 on: April 12, 2004, 08:05:51 AM »
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).   :)

Still deciding which way to go: 4 x 8AH D-cell rechargables (since I already have two sets of four) or 12v SLA.  Prolly will try both before festival season ramps up for me.
Milab VM-44 Links > Fostex FR-2LE or
Naiant IPA (tinybox format) >
Roland R-05

Offline Swampy

  • Trade Count: (0)
  • Needs to get out more...
  • *****
  • Posts: 12022
  • Gender: Male
  • You Worthless Swampy Fool
    • Wanna trade???
Re:JB3 external power
« Reply #182 on: April 12, 2004, 08:41:58 AM »
Ill start my real tests after school. WHOLE rig running! Im sure we'll get a much more accurate picture of the JB3s draw!
Normal: ADK A-51TLs > Silverpath BumbleBee XLRs > Edirol UA-5 (Oade Warm mod) > iRiver H120


blah blah blah

Offline F.O.Bean

  • Team Schoeps Tapir that
  • Trade Count: (126)
  • Needs to get out more...
  • *****
  • Posts: 40713
  • Gender: Male
  • Taperus Maximus
    • MediaFire Recordings
Re:JB3 external power
« Reply #183 on: April 12, 2004, 08:50:59 AM »
yeah, thats what im thinking too alex, but damn 50 hrs is a GREAT sign
Recording Gear:
Schoeps MK 4V & MK 41V ->
Schoeps 250/0 KCY's ->
Naiant +60v/Low Noise PFA's ->
DarkTrain Right Angle Stubby XLR's ->
Sound Devices MixPre-6 & MixPre-3 ->
SanDisk 128gb Extreme Pro & 64gb Ultra Plus SDXC-I

Portable Playback Gear:
Campfire Audio Dorado IEM's >
Linum G2 SuperBax & Bax {3.5mm} | 
FiiO LC 2.5c {2.5mm} >
Shanling Audio M5s | Sony NW-A35 DAP's

DAW:
Dell Inspiron 15 5570-5521 Laptop

http://www.archive.org/bookmarks/diskobean
http://www.archive.org/bookmarks/Bean420
http://bt.etree.org/mytorrents.php
http://www.mediafire.com/folder/j9eu80jpuaubz/Recordings

Offline Brian Skalinder

  • Complaint Dept.
  • Trade Count: (28)
  • Needs to get out more...
  • *****
  • Posts: 18886
  • Gender: Male
Re:JB3 external power
« Reply #184 on: April 12, 2004, 09:38:36 AM »
Ill start my real tests after school. WHOLE rig running! Im sure we'll get a much more accurate picture of the JB3s draw!

As long as you're feeding it a digital signal (assuming that's how you normally run), it shouldn't matter whether you're running full rig or PC digi-out > ODL > JB3.  Right about now I'm wishing I had an AES/EBU output on my soundcard (or a -276 dfc) so I didn't have to power my V3 the whole damn time during my tests!
Milab VM-44 Links > Fostex FR-2LE or
Naiant IPA (tinybox format) >
Roland R-05

Offline F.O.Bean

  • Team Schoeps Tapir that
  • Trade Count: (126)
  • Needs to get out more...
  • *****
  • Posts: 40713
  • Gender: Male
  • Taperus Maximus
    • MediaFire Recordings
Re:JB3 external power
« Reply #185 on: April 12, 2004, 10:02:33 AM »
ha, i have the 276 but no digi soundcard
Recording Gear:
Schoeps MK 4V & MK 41V ->
Schoeps 250/0 KCY's ->
Naiant +60v/Low Noise PFA's ->
DarkTrain Right Angle Stubby XLR's ->
Sound Devices MixPre-6 & MixPre-3 ->
SanDisk 128gb Extreme Pro & 64gb Ultra Plus SDXC-I

Portable Playback Gear:
Campfire Audio Dorado IEM's >
Linum G2 SuperBax & Bax {3.5mm} | 
FiiO LC 2.5c {2.5mm} >
Shanling Audio M5s | Sony NW-A35 DAP's

DAW:
Dell Inspiron 15 5570-5521 Laptop

http://www.archive.org/bookmarks/diskobean
http://www.archive.org/bookmarks/Bean420
http://bt.etree.org/mytorrents.php
http://www.mediafire.com/folder/j9eu80jpuaubz/Recordings

Offline gruven42

  • Trade Count: (0)
  • Taperssection Regular
  • **
  • Posts: 212
  • Gender: Male
Re:JB3 external power
« Reply #186 on: April 12, 2004, 11:46:29 AM »
Hey guys, I just posted a topic about a product that allows you to avoid taking apart the Car Adapter:

http://www.taperssection.com/yabbse/index.php?board=25;action=display;threadid=17050
RIP, my taping career: 10/10/2003-10/6/2007

140/LC3 / MP-2 / Kind / Oade LS Mod SBM-1 / 7pin-opti / JB3 / D7 | SGE 100 / A27M / Manfrotto Black Stacker / Kata Koala-1 | 391/3/actives / c1000 / UA5 (P-Mod)

Offline gruven42

  • Trade Count: (0)
  • Taperssection Regular
  • **
  • Posts: 212
  • Gender: Male
Re:JB3 external power
« Reply #187 on: April 12, 2004, 11:55:48 AM »
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?!?

So, now the JB3 draws 150? Wow, from a full amp to .15? Who's got a multi-meter?
RIP, my taping career: 10/10/2003-10/6/2007

140/LC3 / MP-2 / Kind / Oade LS Mod SBM-1 / 7pin-opti / JB3 / D7 | SGE 100 / A27M / Manfrotto Black Stacker / Kata Koala-1 | 391/3/actives / c1000 / UA5 (P-Mod)

Offline Swampy

  • Trade Count: (0)
  • Needs to get out more...
  • *****
  • Posts: 12022
  • Gender: Male
  • You Worthless Swampy Fool
    • Wanna trade???
Re:JB3 external power
« Reply #188 on: April 12, 2004, 12:39:35 PM »
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?!?

So, now the JB3 draws 150? Wow, from a full amp to .15? Who's got a multi-meter?

No, thats all wrong. Im starting a real test tonight, digi signal in. Ill let everyone know the results.
Normal: ADK A-51TLs > Silverpath BumbleBee XLRs > Edirol UA-5 (Oade Warm mod) > iRiver H120


blah blah blah

Offline fozzy

  • Trade Count: (2)
  • Needs to get out more...
  • *****
  • Posts: 3817
  • Gender: Male
  • move along, nothing much to see here
Re:JB3 external power
« Reply #189 on: April 12, 2004, 12:51:32 PM »
just to clarify.  are you running  

JB3 (w/ 2 internal batts)> Creative Brand Car Adapter> some hacked cable > 12v 7.2ah SLA



MK 4V > KCY 250/5 Ig (KS 10I)  > VST62IUg > 722

Offline recordista

  • Trade Count: (0)
  • Taperssection Newbie
  • *
  • Posts: 38
  • WTF?
Re:JB3 external power
« Reply #190 on: April 12, 2004, 12:53:28 PM »
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...

Offline Swampy

  • Trade Count: (0)
  • Needs to get out more...
  • *****
  • Posts: 12022
  • Gender: Male
  • You Worthless Swampy Fool
    • Wanna trade???
Re:JB3 external power
« Reply #191 on: April 12, 2004, 01:01:10 PM »
just to clarify.  are you running  

JB3 (w/ 2 internal batts)> Creative Brand Car Adapter> some hacked cable > 12v 7.2ah SLA


JB3 (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
« Last Edit: April 12, 2004, 01:02:18 PM by Alex "swampy" Herd »
Normal: ADK A-51TLs > Silverpath BumbleBee XLRs > Edirol UA-5 (Oade Warm mod) > iRiver H120


blah blah blah

Offline Swampy

  • Trade Count: (0)
  • Needs to get out more...
  • *****
  • Posts: 12022
  • Gender: Male
  • You Worthless Swampy Fool
    • Wanna trade???
Re:JB3 external power
« Reply #192 on: April 12, 2004, 01:03:01 PM »
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).   :)
 

No its cool, I should have tested it with digital signal...
Normal: ADK A-51TLs > Silverpath BumbleBee XLRs > Edirol UA-5 (Oade Warm mod) > iRiver H120


blah blah blah

Offline Brian Skalinder

  • Complaint Dept.
  • Trade Count: (28)
  • Needs to get out more...
  • *****
  • Posts: 18886
  • Gender: Male
Re:JB3 external power
« Reply #193 on: April 12, 2004, 01:12:54 PM »
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...

Hmmmmm...very, very interesting.  So...for those comfortable with our soldering skills (but not terribly knowledgable about schematics and such - e.g., don't know what a "cap" is), what would this schematic look like, exactly?
Milab VM-44 Links > Fostex FR-2LE or
Naiant IPA (tinybox format) >
Roland R-05

Offline fozzy

  • Trade Count: (2)
  • Needs to get out more...
  • *****
  • Posts: 3817
  • Gender: Male
  • move along, nothing much to see here
Re:JB3 external power
« Reply #194 on: April 12, 2004, 01:48:18 PM »
just to clarify.  are you running  

JB3 (w/ 2 internal batts)> Creative Brand Car Adapter> some hacked cable > 12v 7.2ah SLA


JB3 (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

cool, so no internals at all.  i think i am going to go grab a SLA at lunch. i have a show a night 4/26-4/29 i'd like to do w/o re-charging at all.  will be powering my both the ua5 and jb3.
MK 4V > KCY 250/5 Ig (KS 10I)  > VST62IUg > 722

 

RSS | Mobile
Page created in 0.143 seconds with 56 queries.
© 2002-2020 Taperssection.com
Powered by SMF