Princeton Technology Preset equallizer with Bass Boost

abid_rehan · 24th January 2006, 09:44 AM

HI:
Recently I purchased about 60 chips from Princeton technology of their infamous stereo preset equalizer with bass boost circuitary.
The circuit is very simple and straight forward, I did make the prototype on varoboard and used it with my buffers and Gainclones of OPA549, after putting the preset equalizer in the circuit results improved pretty well along bass boost.
Here is the PCB design for reference.
Any one interested in these chips do drop me a line at my email.

Cal Weldon · 28th January 2006, 03:28 PM

How many are you selling and what's the asking price?

neutron7 · 29th January 2006, 01:02 AM

does that chip have the presets selectable by individual buttons (with different board) or only cyclic mode?

duelbox · 29th January 2006, 01:57 AM

neutron

pt2388 datasheet

The data sheet shows both.

abid_rehan · 29th January 2006, 02:18 PM

Hi:
I have got about 60 chips for sales, belive me or not this chips is one hot babe,
the preset equalizer works both ways cyclic mode, and also the otion of individual buttons.
in cyclic mode only one button is required for equalizer and one button for bass boost.
Asking price is 3$ per chips and 2 dollar for postage via snail mail, regardless of the number of chips.
Any one interested do drop me a line at my email.
abid

abid_rehan · 31st January 2006, 01:59 AM

5 chips sold, 55 to go....

28th January 2006, 03:28 PM	#2
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	How many are you selling and what's the asking price? __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

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29th January 2006, 01:02 AM	#3
neutron7 diyAudio Member Join Date: Dec 2003 Location: Toronto Canada	does that chip have the presets selectable by individual buttons (with different board) or only cyclic mode?

29th January 2006, 01:57 AM	#4
duelbox diyAudio Member Join Date: Dec 2005 Location: Mississippi	neutron pt2388 datasheet The data sheet shows both.

29th January 2006, 02:18 PM	#5
abid_rehan diyAudio Member Join Date: Mar 2007	Hi: I have got about 60 chips for sales, belive me or not this chips is one hot babe, the preset equalizer works both ways cyclic mode, and also the otion of individual buttons. in cyclic mode only one button is required for equalizer and one button for bass boost. Asking price is 3$ per chips and 2 dollar for postage via snail mail, regardless of the number of chips. Any one interested do drop me a line at my email. abid

31st January 2006, 01:59 AM	#6
abid_rehan diyAudio Member Join Date: Mar 2007	5 chips sold, 55 to go....

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