Dram chip

[wui223]

Just found out that i have alot of DRAM chips, the one that smallbear sell in the Delay/Echo IC department. What can i do with them? I salvage them from an old PC which is now settle in heaven peacefully

[Mark Hammer]

Life is full of strange things.  If you happen to have an older 386 or 486 or older video cards, you probably have lots of those RAM chips...more than you want to look at.  If you bought your first computer after 2001, you have probably never even seen one of those chips UNLESS you ordered one from Small Bear!  :lol:

[wui223]

Yeah i have almost all the IC which sold in SmallBear, i mean all the DRAM chip. But what i make use of it ?

[Mark Hammer]

You can buy some PT2395 chips and make yourself a decent digital delay.  You can trade them with others here for things you can't easily get where you live.

[Lee_ranaldo]

i have the same chips from an old olivetti 286's PC with lots' of dram chips that looks the same as the RAM chips that you can find in your old cd player with ESP (electronic skip protection).

As all members here, i'm a huge EH fan.. , the goal is to design a new improved 16 Second (or even more) Digital delay pedal with the same features as the old one (LFO, SQUELCH, FOOTSWITCH,ETC.).
But with the addition of a "switcheable" compander chip (SA571).

But anyways... it's not sooo easy as follow the schem.. get the parts... do a layout ... it involves some assembly programing to set a loop or improve the delay inside the A/D chip or similar.

The boss DD-2/3 used a huge (Dip`-40) microcontroller with 2 o 3 SRAM chips. and the NE570 chip. There are lots of microcontrollers with EPROM and a decent A/D conversor (8bit to 12 bit resolution).  the problem is that you will need to dump the program stored in the EPROM in order to make a clone. (I'm right?)

Does anyone here have the same interest?.

Thanks

[gez]

Nothing to add, just wondering if you'd consider putting 'Wee' in front of the title of this thread...just to satisfy my purile sense of humour?  

[R.G.]

Aye, thay's the trrooth.

[Paul Perry (Frostwave)]

Somebody local got 12 old computers thrown out on the steet recently & pulled various DRAM (I think it ewas DRAM... I'm an analog kind of guy!!) and sold them on eb*y by noting which early drum machines & samplers used them!! Make 12 386's into $200?? depends what your time is worth. Someone else I know is trying to make a vibrating bed driven by a shitload of 5 1/4 floppy drives :shock: