PDP-11/23

Hey there! This page is dedicated to the PDP-11/23 that I have:
KDF11-AA CPU@12.8MHz + MMU + KEF11 FPU
MSV11-DD 64kByte Ram
MSV11-DD 64kByte Ram
DLV11J Serial I/O Card
RXV21 Disk Interface
BDV11 Bootstrap/Diagnostics
BA11-N Box:
H9273 Backplane
H786 PSU
H403 Mains input box.
RX02 Dual Floppy Drive: 360rpm, double density, 512kbytes disks!

This machine had 128KBytes of ram! (64Kwords) until it was upgraded to the full capacity that the 18bit address bus can take... 256Kbytes of memory, wow!

As the machines RX02 Dual 8" Floppy disc system is getting a bit old, I built an RX02 Emulator interface board. It didn't work first time and we had troubles with the pull up/down resistors fighting.

Deadbug style of construction is great for RF applications and rapid prototyping Deadbug style of construction is great for RF applications and rapid prototyping