6502.org

Anyone know where I can obtain 6504 or 6507 microprocessors?

Hi Andy,

Jameco carried the 6504 for years but a quick search on their site didn't turn up anything. Still, you might inquire with them to see if they have any small amount of stock left. I know that the 6504 was used in very old Commodore products in the PET/CBM line like the 4022 printer and disk drives such as the 8250.

This 6504 is more attractive than the 6507 because it has the IRQ interrupt. While the 6507 has no interrupt capability it is much easier to obtain, you can get one out of an Atari 2600. It may be labelled with a strange number other than 6507 though, check my 6504-based SBC page for to match the numbers. You can get an old Atari at most trift stores, garage sales, or online auctions. You will have to desolder the chip, I have never seen one socketed.

If you don't manage to turn up one of these chips send me an e-mail and I'll dig through my chips, I'm sure I have one I can send you.

Best Regards,
Mike

Hi Mike, great to hear from you!

MN> Jameco carried the 6504 for years but a quick search on their site didn't turn up anything. Still, you might inquire with them to see if they have any small amount of stock left.

Thanks, it's not in their catalogue but as you suggest I'll drop them an email and cross my fingers! =o)

MN> I know that the 6504 was used in very old Commodore products in the PET/CBM line like the 4022 printer and disk drives such as the 8250.

Oh no, that means I used to have a bunch! Never mind I guess the PETs were a bit heavy to schlepp across the Atlantic
with me =o)

MN> This 6504 is more attractive than the 6507 because it has the IRQ interrupt.

The IRQ would certainly be useful, but I can probably getaway with polled i/o for my first few 650x experiments.

MN> While the 6507 has no interrupt capability it is much easier to obtain, you can get one out of an Atari 2600.

<grin> I had one of those in Britain too! I'll have to see if I can find one over here somewhere... perhaps I'll put a
socket on the 2600 planar in case I start to suffer from Pac-Man withdrawal! <grin>

MN> If you don't manage to turn up one of these chips send me an e-mail and I'll dig through my chips, I'm sure I have one I can send you.

I'll let you know how I get on. If I can't email you (for a while my mails to you were either bouncing or disappearing
into a bit bucket somewhere), I'll post a message here.

Regards,

- Andy.

Hello Andy,

I have a few 6504's if you are still looking.

Let me know one way or the other

Regards, Wally

Hi Wally!

WD> I have a few 6504's if you are still looking. Let me know one way or the other

Sounds great! Where are you, and how much would you sell them for?

Regards,

- Andy.

Hi Andy,

When you get a minute, send your email to : wdaniels@glinx.com,
and we'll chat

Wally

Andy,

Check with:
Midwest Surplus Electronics
501 W. Main Street
Fairborn, OH
937-879-2250

I picked up a few 6504's last summer. They had several more then. I doubt if they've sold then all.
Ted Melton

You do NOT want to play Atari 2600 Pac-Man.

D> You do NOT want to play Atari 2600 Pac-Man.

?

Have you ever played 2600 Pac-Man? It was a cheap hack. Good thing the Apple II version wasn't as bad...

Actually i had taken apart a 2600 a long time ago, and they are socketed 6507, not soldered.