View Full Version : 3144 schematic
John Nebel
06-12-2003, 10:10 AM
JBL's site has 3143 and 3145 schematics, but no 3144.
Anyone know where that might be available?
It looks like 3144 was used with 2235H/2221H/2425J/2405 in the 4344
4313B
09-07-2003, 04:50 AM
Hello,
The 3144 is the same as the 3145 and it was used in the 4344.
2235H/2122H/2425J-2307-2308/2405.
John Nebel
09-07-2003, 12:57 PM
Thanks Giskard. I'd also picked up on your answer to this on another thread a while back.
Fixin to build two of these. The center-tapped inductors are in JBL's parts book and I ordered them, but haven't seen the goods yet.
John
4313B
09-07-2003, 01:34 PM
Cool! :)
Did you order them from the Pro Parts website or did you talk to a person?
*****
"Thanks Giskard. I'd also picked up on your answer to this on another thread a while back."
For reference:
http://www.audioheritage.org/vbulletin/showthread.php?s=&threadid=401&highlight=3144
John Nebel
09-07-2003, 03:15 PM
Giskard,
From the web site. The part numbers appear to be
61020-01R0 for 1.0mh
61018-0R16 for .16mh
... gleaned from the 3155 schematic which has a more complete parts list.
John
4313B
09-07-2003, 03:22 PM
Yeah those parts are for the 3155.
The 3144 and 3145 parts are 41090 for the tapped 1.0 mH and 50344 for the tapped 0.16 mH.
I really can't remember which were set to what, but I'm thinking one set was set to -6 dB and the other set was set to either -3 dB or -4 dB.
Anyway, I'm sure it will all work out.
John Nebel
09-08-2003, 07:43 AM
Thanks for those numbers. It looks like JBL messed up the order, so I have a chance to get the proper inductors if they have them.
FWIW, the 3155 schematic is labeled -4db
so the 3144 must be -6
4313B
09-08-2003, 11:58 AM
"Thanks for those numbers."
You're welcome.
"FWIW, the 3155 schematic is labeled -4db so the 3144 must be -6"
That would be it then. I just couldn't remember off-hand and didn't think about it too hard :)
delahais
09-03-2004, 09:11 AM
Originally posted by Giskard
Yeah those parts are for the 3155.
The 3144 and 3145 parts are 41090 for the tapped 1.0 mH and 50344 for the tapped 0.16 mH.
I really can't remember which were set to what, but I'm thinking one set was set to -6 dB and the other set was set to either -3 dB or -4 dB.
Anyway, I'm sure it will all work out.
hi,
i would like to know the dcr of this .16mh coil.
regards.
Ian Mackenzie
09-03-2004, 12:09 PM
If you can't obtain them I have used the alternative of split air core inductors successfully
Ian
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