Philip Pemberton wrote:
>"Ross Archer" <archer_at_topnow.com> said:
>
>
>>I have some Synertek NMOS 6502s from various weeks
>>in 1984, still in their (original?) Synertek static tubes.
>>(At least, "Synertek" is stamped on the tubes.)
>>
>>
>Ooh! That'll be good to up the value on Ebay a few dollars... Let's see...
>L_at__at_K!!!!! R_at_RE!!! SYNERTeK Sy6502 ***IN MANUFACTURERS PAKAGING*** ***NR***
>:-) :-) :-)
>
Hehe, you're imitating the inimitable E-bay style perfectly. :)
>
>
>
>>A few "boy are these stupid" questions:
>>
>>1. Does anyone have any cool Synertek lore they'd like to
>>share with the group? All I know about them is they made
>>the SYM-1 and were a 6530 second-source. I guess it's safe
>>to conclude they were also a 6502 second-source. :)
>>
>>
>I think I've got some e-mails from a guy who used to work for them. From
>memory, Synertek were a Honeywell subsidiary who signed a license with MOS
>Technology to second-source the 6502. MOS used the part numbers "MCS6502"
>and "MPS6502", Synertek used "SY6502".
>
Yup, all 90 are marked SY6502. Honeywell? Wonder if my Honeywell
thermostat
still uses a 6502 core. :)
>>From what I've read, there were three licensees for the 6502 -
>MOS Technology - later bought by Commodore to become Commodore
>Semiconductor, logo changed to ugly Commodore chickenhead logo
>Synertek (see above)
>Rockwell - I've got a full set of d-sheets for their parts.
>
>
>
>>2. Is this a "Find" in any sense? (I paid all of 30 cents
>>each for them.) My motivation is to have enough replacement
>>parts to keep all my 6502-based hardware humming for years
>>to come. Though in this case I have several lifetimes' worth.
>>:)
>>
>>
>I would call it a find. How many have you got? Would you be interested in
>selling me a few?
>
I've got 90. If you only want a few, I can forget about the 30 cents
each and
just go for shipping. I can also hook you up with CMOS 65C02s for about
$7 each, via Jameco, if I'm going to be shipping stuff to you anyway.
With Jameco, sometimes you get a WDC65C02 (14 Mhz), sometimes
Rockwell 65C02 (2 Mhz I think). So far nothing as old as 1984 though!
I recommend at least one CMOS version since some code is written for
the 65C02, as you're no doubt aware. Daryl Rictor's SBC2 board (I've
built up 5) is one example. (What a nice board, by the way!)
>
>
>
>>3. Is there any reason to fear that these chips will "go
>>bad"
>>at any significant rate as they age? Is there any way I
>>could
>>store them (reasonably, I mean, no vaccum or outer-space
>>suggestions, please. :) to maximize their lifespan?
>>
>>
>They should be fine. If they've been drenched, expect some pin corrosion.
>Any corrosion on the pins can be removed with a bit of contact cleaner.
>
>
Nope, looks like it's been in some sort of dry warehouse all these
years. Aside from
some dust on the outside of the tubes and the date codes, I could be
fooled into thinking
these babies came right off the assembly line last week. :)
>
>
>>My plan is to come into work some evening and suit up with
>>the full anti-static treatment at an EMI bench with my
>>little
>>SBC (retrofitted with a 40 pin ZIF socket to avoid bending
>>their machine-straight little legs), and test them all in
>>rapid-fire succession. Is there anything inherently dumb
>>about powering them up?
>>
>>
>They'll lose their "L_at__at_K R_at_RE UNUSED" status, reducing the value by a few
>cents a piece :-)
>
>
Oh, okay. I guess I could offer to test them if and only if they want
me to.
I plan to keep quite a few for myself, but 90 is so ridiculous that I'll
be happy
to help out homebuilders like Philip with onesey-twoseys basically at
shipping.
Maybe later I'll ask for a buck each or something.
>Later.
>--
>Phil.
>philpem_at_dsl.pipex.com
>http://www.philpem.dsl.pipex.com/
>
>
>
Received on Wed Jul 31 2002 - 00:15:08 BST