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Author Topic: JB3 external power  (Read 60145 times)

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Offline Sanjay

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Re:JB3 external power
« Reply #315 on: May 27, 2004, 09:50:11 AM »
It wasn't noisy and as long as I started it up and started the recording then threw in alternate power it would be fine, the only problem was the diode was only rated to 1.5 amps so when the drive turned it locked sometimes, after 5 minutes or so.  So what if I got a zener diode that was rated to 2 amps or so?

edit: would this work too? http://shop.store.yahoo.com/laptopsforless/pr2powrunmod.html
« Last Edit: May 27, 2004, 06:38:55 PM by sirchek »
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Offline mizary

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Re:JB3 external power
« Reply #316 on: May 29, 2004, 01:54:41 PM »
ok...  I'll join in the fun.

Problem:
We are currently running the UA-5 off RC batts and the jb3 off 2 internals.  For about 6hrs.  For the festivals we would like MORE POWER!  

Solution:


does that look right?

Questions:
#1 Cheap SLA's  I have seen prices for a 7aH SLA from $10 - 20+ (not including eco charge stuff) Is there a big difference.  We would still use rc batts/internals 95% of the time.  So the SLA won't get used much at all.

#2 Record time?  I know there have been tests... but it's all very confusing.  I've read that the jb3 draws an average of 600mA which seems right.  And that the UA-5 draws around 550mA (not sure where I saw that?) for a total of 1150mA.  Is the math as simple as 7000mAh/1150mA = ~6hrs -- has anyone confirmed these results with tests?  Are you getting more or less time?

#3 The fuse.  Some people add them in, others don't.  In the schematic above if I cut the car adapter out (which I probably will to save space) should I add an inline fuse?  What does the fuse prevent?  It seems like just one more thing that can go wrong.

#4 Running both UA-5 and Jb3 off one battery.  Any problems with this?

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Offline fozzy

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Re:JB3 external power
« Reply #317 on: May 29, 2004, 02:46:59 PM »
1.) I think they are all the same.  I paid ~15 locally probably could have saved a few bucks but i didn't shop around.

2.)  I have a 7.2ah SLA that gets ~15 hrs running both the UA5 and JB3.

3.)  Had one blow on me.  I would recomend protecting them w/ tin foil if you decide to use a fuse.

4.)  None here except for maybe some back problems from all the weight.
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Offline F.O.Bean

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Re:JB3 external power
« Reply #318 on: June 05, 2004, 09:29:39 AM »
alright, i got someone else to check their walmart car adapter for the jb3, and no continuity on the "tip/positive" end either, but it werks!!

also, im doing the 12v sla>wal-mart car adapter>v3>jb3 recording tv to see if the adapter "drops" power over the course of a long run, lets hope we get near 46 hrs ;)

oh, and my internals are in!!
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Offline F.O.Bean

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Re:JB3 external power
« Reply #319 on: June 07, 2004, 09:23:08 AM »
alright, just tested the wal-mart external power method, i got about 35 hrs w/ the walmart car adapter and a 12v 7.2amp battery!

seems to be about 10 hrs less than alex's tests w/ the "real" creative car adapter, but thats fine for me, it actually may have lasted less, because i had my internals in, D'oh!!!

either way, its a jb3 HD worth, which is worth it to me for sure!

im gonna do more tests because im anal and i wanna seee if a full charge w/ the batteryminder may do any change also!!
Recording Gear:
Schoeps MK 4V & MK 41V ->
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SanDisk 128gb Extreme Pro & 64gb Ultra Plus SDXC-I

Portable Playback Gear:
Campfire Audio Dorado IEM's >
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Shanling Audio M5s | Sony NW-A35 DAP's

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Offline Sanjay

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Re: JB3 external power
« Reply #320 on: June 21, 2004, 03:15:27 PM »
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Offline keepongoin

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Re: JB3 external power
« Reply #321 on: June 23, 2004, 03:37:02 PM »
I saw this on ebay, has anyone tried to see if these work? 
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=48517&item=3822454876&rd=1&ssPageName=WDVW

it looks like it might work, but make sure it puts out a high enough power.
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Offline shroominhumpy

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Re: JB3 external power
« Reply #322 on: June 24, 2004, 07:34:33 PM »
I have a Panasonic LC-R127R2PG1 12V 7.2AH SLA Battery. It just has a positive terminal and a negative terminal. How would I set something up with this to power my JB3? (I am not sure whether to go with a 4-pin, which I dont know how to use here, or to solder on that radioshack DC car outlet adaptor.) Also, where can I buy a charger for these sorts of batteries?

Jason
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Offline Sanjay

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Re: JB3 external power
« Reply #323 on: June 25, 2004, 12:44:24 AM »
I saw this on ebay, has anyone tried to see if these work? 
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=48517&item=3822454876&rd=1&ssPageName=WDVW

it looks like it might work, but make sure it puts out a high enough power.

how could you tell and how much power would the jukebox need?
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Offline aberg

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Re: JB3 external power
« Reply #324 on: June 29, 2004, 02:07:44 PM »
I have a Panasonic LC-R127R2PG1 12V 7.2AH SLA Battery. It just has a positive terminal and a negative terminal. How would I set something up with this to power my JB3? (I am not sure whether to go with a 4-pin, which I dont know how to use here, or to solder on that radioshack DC car outlet adaptor.) Also, where can I buy a charger for these sorts of batteries?

Jason

This is exactly what I am wondering about... anyone know how to do this?

Offline aberg

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Re: JB3 external power
« Reply #325 on: July 12, 2004, 10:34:01 PM »
Still looking for an answer... anyone? PM me if it's easier.

Offline F.O.Bean

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Re: JB3 external power
« Reply #326 on: July 12, 2004, 11:15:49 PM »
aberg, you need to take those terminals and terminate them into a 4-pin connector!!

lemme see if i can find some pics :)

i know it involves some lamp cord style cable, some cable(nylon) ties, and some nylon cable tie holders, and a handy soldering hand :)
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

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Offline JNT

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Re: JB3 external power
« Reply #327 on: July 12, 2004, 11:16:15 PM »
I have a Panasonic LC-R127R2PG1 12V 7.2AH SLA Battery. It just has a positive terminal and a negative terminal. How would I set something up with this to power my JB3? (I am not sure whether to go with a 4-pin, which I dont know how to use here, or to solder on that radioshack DC car outlet adaptor.) Also, where can I buy a charger for these sorts of batteries?

Jason

This is exactly what I am wondering about... anyone know how to do this?

You may want to read some of the posts on building battery packs to answer some of your general questions.  Afterwards please post again if you have questions.

I power by JB3 with a 12V battery and the Wall Mart adapter to go from 12v to 4.5v. Several people are doing it this way.

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Offline F.O.Bean

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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 aberg

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Re: JB3 external power
« Reply #329 on: July 13, 2004, 11:36:36 PM »
I will likely only be using my 12v 7.5ah SLA for festivals and multiple band shows... so I won't be having to do tons of charging. Will something like this be sufficient if charging time is of no concern? The price is nice too....

http://www.batterymart.com/battery.mv?p=ACC-41A12500

If this will do just fine, then I'm ordering one right away.

 

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