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wait... CD 2399?

Started by pinkjimiphoton, April 19, 2017, 10:02:01 PM

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pinkjimiphoton

April 19, 2017, 10:02:01 PM
never heard of this one before, but it's in a little ammoon nano delay i picked up...

appears to be a DIFFERENT 2399,  sold as a reverb surround processor. it sounds great in the little nano pedal.. everything is smd in it, but the chip is full size

http://www.datasheetspdf.com/PDF/CD2399/808236/4

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blackieNYC

#1
April 19, 2017, 11:53:31 PM Last Edit: April 19, 2017, 11:55:08 PM by blackieNYC
I call BS on the "surround" and "reverb".  Sure, in a Karaoke bar it's called reverb. Same old 2399 is my guess. (can't find an English data sheet)
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pinkjimiphoton

#2
April 20, 2017, 12:56:51 AM
i'm wondering if this is what all them buggy pt2399s really are.

the little delay sounds killer for what it is. they broke the mod/delay switch by overtightening the nut on it.. so the switch fell apart during shipping. this thing is only a little over half the length of a 1590a!

trying to get a refund/another unit. language barrier proves interesting.
"how bout refund you 5 dollars, you fix yourself"... if it wasn't SMD, yeah, i'd go for it. i may still, if i can find the proper switch. ;)

i'ma gonna look around and see if'n i can't find some of these somewhere, and get an english data sheet.

but i am betting they are chinese knockoffs.. cd probably means chinese delay or something. ;)
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"When the power of love overcomes the love of power the world will know peace."
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KarenColumbo

#3
April 20, 2017, 03:21:56 AM Last Edit: April 20, 2017, 03:24:03 AM by KarenColumbo
I think this chinese datasheet is a one to one copy of the original (?).
http://html.alldatasheet.com/html-pdf/391581/PTC/PT2399/112/2/PT2399.html
I have a few of them (PT) here - could send you some - would take ages, though :)
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anotherjim

#4
April 20, 2017, 07:10:44 AM
Pin 6, the delay time timing resistor.
Princeton original doesn't show that 47nF cap across it. If a variable resistor, there is also a fixed resistor in series.
CD2399 echo application (lower scheme) shows 100nF in place of the 82nF that the Princeton scheme has.

Agung Kurniawan

#5
April 20, 2017, 07:16:53 AM
wait, what? CD2399?
Multiple gain stage followed by some active EQ is delicious.

maiko

#6
April 21, 2017, 01:32:15 AM
Yup CD2399

I actually got a bunch of those and  build reboote delays and Equinox Reverb seems ok and never
had problems.    In the Philippines its sold at 65 pesos or about a $1.50 per piece.    Princetons are
about 150 so roughly 3bucks.     

Honestly if they did not run out of the PTs i probably wouldnt even tried using the CDs ;D
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