| Author |
Message |
David Chapman
Guest
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 Posted:
Fri Jan 21, 2005 2:46 am Post subject:
Looking for some 41256 dynamic ram (256K x 1) IC's in UK. |
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Hi,
Does anyone (preferably in the UK) have surplus to requirements, or
know of a source of, around 50 of the old 256K x 1 dynamic RAM's such as
the Texas TMS41256 and other manufacturers' equivalent products?
If so, please e-mail me with details and price required.
TIA - Dave Chapman
David C.Chapman - Chartered Engineer. FIEE. (dcchapman@iee.org)
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CHAPMAN ASSOCIATES is a Consultancy offering practical expertise and
design skills in the fields of counter-surveillance, electronic protection
and security. Visit our Web site at http://www.minda.co.uk
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Ol' Duffer
Guest
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| Posted:
Fri Jan 21, 2005 4:26 am Post subject:
Re: Looking for some 41256 dynamic ram (256K x 1) IC's in UK |
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In article <ZsSxBJA7iB8BFwPR@chassis.demon.co.uk>, dave@minda.co.uk
says...
| Quote: | Does anyone (preferably in the UK) have surplus to requirements, or
know of a source of, around 50 of the old 256K x 1 dynamic RAM's such as
the Texas TMS41256 and other manufacturers' equivalent products?
|
I think I still have a pair of RamPage AT memory cards
somewhere in my old stuff that were loaded with the
things. If you can't find anything on your side of
the pond... |
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Airy R.Bean
Guest
|
| Posted:
Fri Jan 21, 2005 2:24 pm Post subject:
Re: Looking for some 41256 dynamic ram (256K x 1) IC's in UK |
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Insofar as modern memory chips are faster, smaller in size,
and of greater capacity, would it not be a straightforward
matter to create a daughter board together with appropriate
glue logic in an FPGA that would plug into the (18-pin?) DIL
sockets?
That way, you're future support problems would be eased. I
mean, if you've got equipment that old that still needs support, then
the chances are that it will still need support another 10 years
down the line and then you'd have a route to guarantee that
future support.
"David Chapman" <dave@minda.co.uk> wrote in message
news:ZsSxBJA7iB8BFwPR@chassis.demon.co.uk...
| Quote: | Does anyone (preferably in the UK) have surplus to requirements, or
know of a source of, around 50 of the old 256K x 1 dynamic RAM's such as
the Texas TMS41256 and other manufacturers' equivalent products?
If so, please e-mail me with details and price required. |
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Franc Zabkar
Guest
|
| Posted:
Fri Jan 21, 2005 2:46 pm Post subject:
Re: Looking for some 41256 dynamic ram (256K x 1) IC's in UK |
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On Thu, 20 Jan 2005 20:46:51 +0000, David Chapman <dave@minda.co.uk>
put finger to keyboard and composed:
| Quote: | Does anyone (preferably in the UK) have surplus to requirements, or
know of a source of, around 50 of the old 256K x 1 dynamic RAM's such as
the Texas TMS41256 and other manufacturers' equivalent products?
If so, please e-mail me with details and price required.
TIA - Dave Chapman
|
I have over 150 (?) unused TMS41256 DRAMs, but I'm in Australia.
- Franc Zabkar
--
Please remove one 's' from my address when replying by email. |
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Mike Harrison
Guest
|
| Posted:
Fri Jan 21, 2005 5:01 pm Post subject:
Re: Looking for some 41256 dynamic ram (256K x 1) IC's in UK |
|
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On Fri, 21 Jan 2005 08:24:53 -0000, "Airy R.Bean" <Me@privacy.net> wrote:
| Quote: | Insofar as modern memory chips are faster, smaller in size,
and of greater capacity, would it not be a straightforward
matter to create a daughter board together with appropriate
glue logic in an FPGA that would plug into the (18-pin?) DIL
sockets?
That way, you're future support problems would be eased. I
mean, if you've got equipment that old that still needs support, then
the chances are that it will still need support another 10 years
down the line and then you'd have a route to guarantee that
future support.
"David Chapman" <dave@minda.co.uk> wrote in message
news:ZsSxBJA7iB8BFwPR@chassis.demon.co.uk...
Does anyone (preferably in the UK) have surplus to requirements, or
know of a source of, around 50 of the old 256K x 1 dynamic RAM's such as
the Texas TMS41256 and other manufacturers' equivalent products?
If so, please e-mail me with details and price required.
|
I think 41256s were so common at the time that there will always be enough around to maintain old
systems.
A quick search for 41256 at www.findchips.com shows many hundred thousands stock.
I don't recall there being any significant difference in specs between makers |
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David Chapman
Guest
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| Posted:
Sun Jan 23, 2005 3:10 am Post subject:
Re: Looking for some 41256 dynamic ram (256K x 1) IC's in UK |
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Many thanks to all those nice people who responded to my posting,
particularly those who offered batches of IC's.
I now have more than enough 41256 devices to meet my particular
requirements.
ATB - Dave
David C.Chapman - Chartered Engineer. FIEE. (dcchapman@iee.org)
--------------------------------------------------------------------------
CHAPMAN ASSOCIATES is a Consultancy offering practical expertise and
design skills in the fields of counter-surveillance, electronic protection
and security. Visit our Web site at http://www.minda.co.uk
-------------------------------------------------------------------------- |
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therepairman
Guest
|
| Posted:
Sun Feb 06, 2005 8:40 am Post subject:
Re: Looking for some 41256 dynamic ram (256K x 1) IC's in UK |
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I found this seller in the USA to be very reasonable
you can contact him at this email addy
hs1948@yahoo.comxxxxxx
Remove the xxxx from his email prior to emailing him |
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Guest
|
| Posted:
Thu Mar 03, 2005 5:21 am Post subject:
Re: Looking for some 41256 dynamic ram (256K x 1) IC's in UK |
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Please contact me at this email address. I have many in stock. No
minimum quantity. Please remove the nospam before returning email to
me.
npspamhs1948@yahoo.com
On Thu, 20 Jan 2005 20:46:51 +0000, David Chapman <dave@minda.co.uk>
wrote:
| Quote: |
Hi,
Does anyone (preferably in the UK) have surplus to requirements, or
know of a source of, around 50 of the old 256K x 1 dynamic RAM's such as
the Texas TMS41256 and other manufacturers' equivalent products?
If so, please e-mail me with details and price required.
TIA - Dave Chapman
David C.Chapman - Chartered Engineer. FIEE. (dcchapman@iee.org)
--------------------------------------------------------------------------
CHAPMAN ASSOCIATES is a Consultancy offering practical expertise and
design skills in the fields of counter-surveillance, electronic protection
and security. Visit our Web site at http://www.minda.co.uk
-------------------------------------------------------------------------- |
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