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Dieter
08-25-2003, 11:53 AM
Hi everybody,

does anybody have the schematic of the card for the 4355, crossover 290 Hz/ 18dB?

I ask for a friend.

Thanks and regards

Dieter

4313B
08-25-2003, 12:19 PM
51-5145

4313B
08-25-2003, 12:20 PM
51-5130

4313B
08-25-2003, 12:21 PM
52-5120

Dieter
08-26-2003, 02:22 AM
Thank you,

i think, that's what my friend needs!!

Regards

Dieter

4313B
08-26-2003, 06:30 AM
You're welcome :)

Dieter
08-29-2003, 11:33 AM
Hi Giskard,

i have a new question:

in the manual for the 5235

http://www.jblproservice.com/pdf/Vintage%20JBL-UREI%20Electronics/JBL-5235%20manual.pdf

Jbl wrote that for the 51-5145 card R1 is 5,2 k ohm.

In your post you have a copy where R1 is 6.2 k Ohm.

What is right?

Or i am wrong?

Please help me and my friend.

Best regards

Dieter

4313B
08-29-2003, 11:55 AM
Good eye Dieter!

Here you go:

Looks to me like the 5234A manual is right and the 5235 manual is wrong.

boputnam
08-29-2003, 12:02 PM
Looks to me like the 5234A manual is right and the 5235 manual is wrong.

Yea, looks like a typo. Besides the curve (thanks, Giskard!), all the 18db/Octave cards have R1, R2, and R3 of same value, both in the 5234A manual (5234A Manual - Link (http://www.jblpro.com/pub/obsolete/5234a.pdf)) and in the 5235, except for that 290 Hz card.

Another typo for the record books. :p

4313B
08-29-2003, 01:17 PM
"all the 18db/Octave cards have R1, R2, and R3 of same value"

Yeah, except when you're building the 4430/4435 card which also uses the 18dB/octave card.