harris 6100's on ebay

From: Ethan Dicks <erd_6502_at_yahoo.com>
Date: Fri Feb 28 08:35:00 2003

On Thu, 27 Feb 2003, ben franchuk wrote:
> Yes you can, but real PDP 8 I/O and memory over 4kw require other
> support chips. Also since the chip is CMOS speed and output drive
> is limited.

The 6120 is also CMOS and look what Bob Armstrong has done with it.
DECmates run at 8MHz, not quite as fast as a PDP-8/a, but in the
ballpark. Much faster than a PDP-8/S :-)

> Until you can get a data sheet on the devices it may
> be wise to not get the chips. Intersel made the 6100's first I think.

They did, 1976. Also, the 6100 is used in the VT78 (one of the only
PDP-8 variants I _don't_ have), so I bought a tube too, in case I
ever get a VT78. I doubt I'll be able to find a single part for $15
shipped if go looking later, let alone 11. The 6120 goes for $50 new.

More info at

 http://www.faqs.org/faqs/dec-faq/pdp8/section-6.html

-ethan
Received on Fri Feb 28 2003 - 08:35:00 GMT

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