I have a PDP 11/03-AA available for sale, which I will bring to VCF East. This CPU was used as the console of a VAX 11/780, and includes an RX01 floppy drive and cables. I've never gotten around to even powering up this machine, and it's time to let it go. The installed boards are: M7264 EB 11/03 processor with 4-Kword MOS RAM M7940 Serial Line Unit (SLU, Async) M7946 RX01 8" floppy disk controller M8017 Single-line async control module M7944 4-Kword 16-bit MOS RAM (external refresh) M9400 YE Headers and 240-ohm terminators (18-bit bus only) I also have the following boards to upgrade the system to something more useable: M8012 BDV11 bus terminator, bootstrap and Diagnostic Module M8044-DB 32K, 16-bit RAM M8043 Q-bus quad serial interface Also have the cable for the M7940 (BC03L-00). About the floppy drive...the M7946 is a RX01 controller, but the part number on the drive itself is for an RX02. I know practically nothing about DEC hardware, so I don't know why the discrepancy. I'll be taking offers for the whole setup (off-list, please) until midnight, May 1. Pictures are at: http://q7.neurotica.com/Oldtech/PDP1103/ Mike Loewen mloewen@cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/
On Tue, Apr 23, 2019 at 10:20 PM Mike Loewen via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> wrote:
I have a PDP 11/03-AA available for sale, which I will bring to VCF East. This CPU was used as the console of a VAX 11/780, and includes an RX01 floppy drive and cables...
About the floppy drive...the M7946 is a RX01 controller, but the part number on the drive itself is for an RX02. I know practically nothing about DEC hardware, so I don't know why the discrepancy.
There are 5 DEC drive interface boards for three DEC busses, two Qbus, two Unibus, and one OMNIBUS (this does not count later DECmate systems which use RX02 drives but don't have an OMNIBUS) Qbus M7946 RXV11 M8029 RXV21 Unibus M7846 RX11 M8256 RX211 OMNIBUS M8357 The RX02 drive has a 2-position DIP switch on the boards for selecting one of the following modes: S1-1 OFF S1-2 ON - RX211, RXV21 controller (RX02 mode) S1-1 ON S1-2 OFF - RX11, RXV11, RX8E controller (RX01 mode) S1-1 OFF S1-2 OFF - RX8E, DECmate (RX02 mode) The RX01 drive only works with the RX11, RXV11 and RX8E. -ethan
Any more offers on the PDP11/03? Please reply off-list. On Tue, 23 Apr 2019, Mike Loewen via vcf-midatlantic wrote:
I have a PDP 11/03-AA available for sale, which I will bring to VCF East. This CPU was used as the console of a VAX 11/780, and includes an RX01 floppy drive and cables. I've never gotten around to even powering up this machine, and it's time to let it go. The installed boards are:
M7264 EB 11/03 processor with 4-Kword MOS RAM M7940 Serial Line Unit (SLU, Async) M7946 RX01 8" floppy disk controller M8017 Single-line async control module M7944 4-Kword 16-bit MOS RAM (external refresh) M9400 YE Headers and 240-ohm terminators (18-bit bus only)
I also have the following boards to upgrade the system to something more useable:
M8012 BDV11 bus terminator, bootstrap and Diagnostic Module M8044-DB 32K, 16-bit RAM M8043 Q-bus quad serial interface
Also have the cable for the M7940 (BC03L-00).
About the floppy drive...the M7946 is a RX01 controller, but the part number on the drive itself is for an RX02. I know practically nothing about DEC hardware, so I don't know why the discrepancy.
I'll be taking offers for the whole setup (off-list, please) until midnight, May 1. Pictures are at:
http://q7.neurotica.com/Oldtech/PDP1103/
Mike Loewen mloewen@cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/
Mike Loewen mloewen@cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/
participants (2)
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Ethan Dicks -
Mike Loewen