🚀 go-pugleaf

 S100 - IEEE/696 boards for sale
 
 
 Tarbell double density disk controller
 - up to 1.2 mbytes (formatted) per drive
 - data transfer can be either DMA or PIO (programmed
   I/O, i.e. you read the data from a port a byte at a
   time)
 - full IEEE/696 compliance
 - controls up to four drives
 - CPM and/or BIOS available from manufacturer
 - can provide MS-DOS device driver listing (or
   source file if you send disk) on request
 - currently selling for $419.00  (see Byte)
 
 Lomas ram board
 - populated with 256k of 150ns rams
 - 8/16 bit transfers, full 24 bit addressing
 - requires 1.5 amps @ +5 
 - on board parity generation and error detection
 - uses Intel 8203 LSI ram controller
 - may be configured to accept phantom
 - all ram chips fully socketed
 - was $395.00 last Aug (see Byte for more specs)


 Asking $300.00 for each of the above, or $500
 for both; I'll pay for 1st class airmail.


 Also
	TDL Z80 S100 cpu with 2mhz -> 4mhz continuously
        adjustable clock. Asking $50.00 .


 All the above prices are in U.S. dollars so multiply
 by whatever the current rate is :-).

 I am open to (reasonable) offers on the above boards.

 for more information:
			John Chapman
			Computing Science Dept.
			University of Waterloo
			Waterloo, Ontario
			N2L 3G1

              or	John Chapman
			RR 4
			Mount Forest, Ontario
			N0G 2L0

	      or        ....!watmath!watcgl!jchapman

	      or	(519) 323-4977
			(>7pm EST weekdays, all day Sat&Sun)