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I have a paper copy of a Tektronix 465B oscilloscope service manual I have rescued. If anyone wants/needs it I am happy to supply free (+associated postage costs). Happy to ship within the UK or for someone to pickup from Worcester or Gloucester. I could also drop off within a few miles of the...

Hi, Sorry, short notice, but I have just found a Digital TK25 tape drive amongst some junk we are throwing out. Anyone in the UK want it? If you do, I will prevent it from heading in the direction of the skip... Friday is the deadline... Local pickup only (Gloucester/Worcester) or I can...

Ok, not strictly Europe now we have left... The company that I work for in the UK has a requirement for some technical support for OS/2 2.1. Is there anyone within the UK that could offer such a service? Regards, Dave

Hi, With assistance from the CHM (Computer History Museum) we have managed to recover the PDP-8/E 4KW EDUSYSTEM-10 BASIC interpreter paper tape image into an electronic form. I have managed to get it to run under SIMH with the attached configuration file. Please contact the CHM directly for a...

OK, My brain is slowly melting... I am setting up a PDP-11 system from bits to erase some disks. I will then reconfigure it to keep. I have a 173QZ-C3 Micro PDP11/73 BA23 system box. The CPU board is a quad QBUS M8190 (KDJ11-B). The memory board is a quad QBUS M7551-AH (MSV11-QA) 1 MB...

This is a placeholder for a thread to see if we can get Marty's transistorised 8080 microprocessor running... Dave

Does anyone know how to erase the disks of a MicroVAX 3300 and 3400 from the >>> prompt? I am required to erase the disks prior to giving the machines away. I have been able to do everything so far except these two machines. The 3300 is equipped with a single RA82 whilst the 3400 is equipped...

Hi, Another lot of equipment that needs to be disposed of I am afraid. Free to a good home. To be collected from Gloucester (UK) by prior arrangement. I suggest a suitable donation to https://prostatecanceruk.org/. This is the charity that the company disposing of the equipment is currently...

Has anyone seen or (even better still) got a copy of the software and/or User Manual for the Cromemco MULTI-USER BASIC by any chance? Tried all of the usual websites... Dave

Most people will remember that we had a load of VAX Stations going begging a while ago. Well, another opportunity has arisen for me to dispose of quite a bit of PDP-11 systems, cards, peripherals, media (but a few caveats with this) - and a few errant VAX machines that avoided the last give...

This is my last remaining issue with the upgrade that I hope someone can help with please. My 'use case' for the original forum in a morning was to get a time-ordered list of posts and to scroll down to the last post I made (based on my avatar) and then read them forwards in time. I could...

Does anyone have (or know the whereabouts of) the source code for the 6800 variant of FLEX? I have the source code for the 6809 variant of FLEX - but that is not what I want... I have checked a number of websites, but they have the binary images for the 6800 variant but not the source code...

Continuing with what Tom has started (and with many thanks to Roland and Don for their hard work) I am planning to do a run of some more PCBs as follows: RX8E (RX01/RX02 OMNIBUS interface). 32KW RAM card. H851 top connectors (PCB only - no physical connectors). RX01/RX02 emulator (requires the...

Ok, So I have shamed myself into booking a half day holiday and 'smoke testing' some of the equipment I hauled back... 2 * VT525 base units. Both power up OK on 240 V and display a picture on a connected VGA monitor. Both report the message "Keyboard error" which is good, because I didn't...

OK, I have access to some DEC equipment that needs to go to a deserving home (i.e. yours). Cost - a donation to charity. UK only and I am not delivering... There may be some other stuff available at the time of collection for you to pick through. I have removed from the list stuff that I am...

Has anyone got a manual for the KXT11-CA? I have just purchased myself a reasonably-priced card (from a well-known site) and have been searching for the manual. I can't even find it on bitsavers :-(! Regards, Dave

I have finally got around to finishing the documentation for my PET EDIT ROM test firmware. The 'official' Version is V04 and the source, binary, HEX and documentation can be found on my google drive at https://drive.google.com/drive/folders/1fyLbr1kcG98a2FDOMo1H5pj9lIdJpHcx?usp=sharing. I...

We seem to have lost the links between all the parts of the posts in the move from vintage computer dot com to vcfed dot org. I would like to post the updated links so we don't lose the entire conversation for the benefit of readers in the future. Ignore the numbers in [] - they were for my...

Finally started repairing my 8032 with an 8032030 80 column main board. Electrical safety checks - OK. Transformer AC supply checks - OK. DC supply checks (black smoke time) - OK. Reset signal (CPU pin 40) - OK. Phi 2 clock (CPU pin 39) - NO. Chased the clock (or lack of) all the way back...

Ok, So, before I go off and re-invent the wheel (again); I thought I would post what I am planning to do so either (a) someone can tell me I am an idiot, (b) point me in the right direction at somewhere where this has been done or (c) at least come back and say it may be possible. So, here...