Re: Request a discrete refresh circuit schematic

["Bill Garber" <willy46pa@comcast.net>]

"Ed Eastman" <noone@nowhere.net> wrote in message
news:eeh3qo$2s6$1@unlnews.unl.edu...
: Since there is no A2 hardware forum, I'll post it here...  (Sorry about
: posting to the emulators group.)
:
: I need a circuit to refresh some stand alone ram for a RAM expansion
: circuit I am designing.  (12M Ram on the IIgs)  I understand the basic
: theory but I need an actual circuit with real RAM chips to help me
: visualize the process. I've looked on the internet but the refresh
: circuit is always glossed over and people are using a memory manger or
: some such chip that I don't have access to.
:
: Would someone please send me a discrete schematic of a refresh circuit
: on say, a 4 meg bank of RAM?  Or I'd be just as happy with a point to
: some resources readily available via internet or book reference.
:
: I forgot to mention I'd like to use some old 8bit SIMMs I have laying
: around.  Of course the circuit would be just as easy on a 72 pin simm.
:
: Thanxk,
: Ed
: eeastmanNO@SPAMgmail.com

Ed,

I sent you a private message. I hope you
get it, because there is a lot of info in
there. Let me know.

Bill Garber
Owner - Garberstreet Enterprizez
Co-owner - GSE-Reactive.com
(610)935-7676 (610)329-8996