Feb 152019

An the next programmer has arrived. A Hi-Lo All-07

Feb 152019

A Hi-Lo All-03 with 8Bit Isa Card has arrived.

Jun 102018

Today, I have build a Serial Cable, to connect the Data I/O 29b to an old PC.

(details are here: http://www.retroclinic.com/leopardcats/dio/dataioserial.htm)

Connection works via COM1 8,n,1 9600baud

Here some screenprints of the PROMlink 6.1 Software.


I’m now able to transfer dumps via this PC, to the Data I/O, to burn them.

Jun 092018

The time has come, to test the BootProms I have“burned“ with my new Data I/O 29b.

First I have configured the M9312 to boot from Socket1 and have placed there the fresh created 23-751A9 Boot Prom (RL01/02).

The M9312 Jumpers are set all to off, except 9.

Off: 1,2,3,4,5,6,7,8,10

On: 9

Afterwards I have connected a RL02 Drive, mount a installation Media, and pressed Contr. + Boot.

That’s the outcome:

Welcome to RT-11 Version 5.

You have bootstrapped the RT-11 Distribution Disk. Use this disk to
install your RT-11 system, then store it in a safe place.

RT-11 V5 provides an automatic installation procedure which will
back up your distribution disk and build a working system disk which
should be used for your work with RT-11. This working system disk
will only contain the RT-11 operating system. After the RT-11
installation is complete, follow the installation instructions
packaged with any optional languages or utility software which you
will be using.

Press the "RETURN" key when ready to continue. 
You can choose to install RT-11 manually. This procedure is
described in the RT-11 Installation Guide. 

If you are a new user of RT-11, DIGITAL highly recommends that you
use the automatic installation procedure.

Do you want to use the automatic installation procedure?
(Type YES or NO and press the "RETURN" key): yes


So looks like I can write BootProms. I have needed about three years, and was needed to spend hundreds of Euros to get a sufficient programmer, and a small amount of Proms.

But now I can boot my PDP’s a bit faster. 😉

Now I will configure the M9312 to boot into Console Emulation, afterwards I will boot the devices via them, so that I can choose which one to boot without changing the jumpers on the M9312.


Jun 082018

Since a long time I have searched for a way, to write BootProms for my PDP’s like the 11/34, /24 and the /44.

I had some luck, and have got 30 Bipolar Proms Signetics (82S131N) in NOS state.

This type can be written in a bigger amount of old programmers, like the Data I/O 29b with at least the Unipak2. (a Unipak2b is not needed)

One week after In was able to acquire the BProm’s I have found an Data I/O 29b in ebay UK, and was happy to be the bidder who got it.

Packaging was good, the contact and communication was more than perfect, so that the Programmer arrives here after two days on the road via DPD.

Yes DPD! And it was with about 20 Pound the cheapest possibility to get them to Germany.

A first check-up and some Cleaning later I have copied a DEC RL01/02 (23-751A9) BootProm to a NOS 82S131. The Checksum fits, and all was running good.


5 Minutes later, the filter filer Cap in the Power Socket has started burning, so that I was in the need to exchange them, in an manner, which keeps the programmer in an original state.


Some impressions here:


Feb 042017

This site is mostly for myself, to document my Hauls, Collection and all related parts.

Use the navigation bar to find the topics, … .

I’m not an English native speaker, so the stile of writing is simple and in most cases maybe wrong.