eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

[Steve Malikoff via cctalk]

eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

No connection to the seller, but they mention it will be scrapped if no takers. 
$150 Buy it now.
https://www.ebay.com.au/itm/MEMOREX-3693-2-3690-2-Disc-Drive-Mainframe-IBM-3370-2-VINTAGE/272983151498
or eBay item number: 272983151498

Steve.

Re: eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

[P Gebhardt via cctalk]

>eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE
>
>No connection to the seller, but they mention it will be scrapped if no 
>takers. $150 Buy it now.
>https://www.ebay.com.au/itm/MEMOREX-3693-2-3690-2-Disc-Drive-Mainframe-IBM-3370-2-VINTAGE/272983151498
>or eBay item number: 272983151498
>
>Steve.
I saw that one today, too! If it wouldn't be across the great pond, then I 
would try to save these drives from being scrapped.It would be a real shame if 
nobody could take them. This Memorex equipment is very rare to come across. 

All the best,Pierre

--- 
Pierre's collection of classic computers moved to: http://www.digitalheritage.de

   

It's back

[Rod Smallwood via cctalk]

After a  couple of months of outage my list feed is back..

Rod Smallwood


--

Re: eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

[Noel Chiappa via cctalk]

> From: Steven Malikoff

> they mention it will be scrapped if no takers. 

Don't be misled by the .au URL; the units are in Sacramento, CA. Anyone in
the Bay area up for saving these?

Noel

Re: RL02 to PC image

[Ethan Dicks via cctalk]

On Fri, Dec 15, 2017 at 2:36 AM, Vincent Slyngstad via cctalk
 wrote:
> Mine are available here:
> http://www.so-much-stuff.com/pdp8/cad/3d.php
>
> It's a fairly finicky print.  Fine detail and cantilevered thin pins that
> need to be straight and reasonably strong.

I printed out one on a FormLabs Form1+.  Came out very nicely.

> Shapeways does a fine job printing them for about $4, though.

I don't know that it was much cheaper when I did it - the resin is $125/liter.

The advantage of Shapeways is you can have it made out of something
less brittle than FormLab resin.  My part will work, but I wouldn't
want to drop it - the legs would probably shatter.

-ethan

Re: RL02 to PC image

[systems_glitch via cctalk]

vtserver does indeed work for transferring RL02 contents to a binary image,
suitable for use with SIMH or E11 or whatever. Be advised, it takes a
*long* time, even on a 11/73 with the serial port turned up to 38400 bps.

Thanks,
Jonathan

On Fri, Dec 15, 2017 at 9:15 AM, Ethan Dicks via cctalk <
cctalk@classiccmp.org> wrote:

> On Fri, Dec 15, 2017 at 2:36 AM, Vincent Slyngstad via cctalk
>  wrote:
> > Mine are available here:
> > http://www.so-much-stuff.com/pdp8/cad/3d.php
> >
> > It's a fairly finicky print.  Fine detail and cantilevered thin pins that
> > need to be straight and reasonably strong.
>
> I printed out one on a FormLabs Form1+.  Came out very nicely.
>
> > Shapeways does a fine job printing them for about $4, though.
>
> I don't know that it was much cheaper when I did it - the resin is
> $125/liter.
>
> The advantage of Shapeways is you can have it made out of something
> less brittle than FormLab resin.  My part will work, but I wouldn't
> want to drop it - the legs would probably shatter.
>
> -ethan
>

Re: eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

[Anders Nelson via cctalk]

Is the CHM in Mountain View aware of these?

So awesome... unfortunately I'm in a 2BR in NYC, also I only have 1 phase
120v, also wooden flooring, also no A/C, also zero practical use for it but
when has that stopped us?

=P

On Fri, Dec 15, 2017 at 8:20 AM Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:

> > From: Steven Malikoff
>
> > they mention it will be scrapped if no takers.
>
> Don't be misled by the .au URL; the units are in Sacramento, CA. Anyone in
> the Bay area up for saving these?
>
> Noel
>
-- 
--
Anders Nelson
+1 (517) 775-6129
www.erogear.com

Re: eBay: MEMOREX 3693-2 & 3690-2 Disc Drive Mainframe IBM 3370-2 VINTAGE

[Glen Slick via cctalk]

On Fri, Dec 15, 2017 at 7:06 AM, Anders Nelson via cctalk
 wrote:
> Is the CHM in Mountain View aware of these?

CuriousMarc has been there for one of his pick ups as seen in one of
his videos so they probably know of anything that modemdepot currently
has that is worth saving.

https://www.youtube.com/watch?v=Vi1Mw4CHpyU

Re: RL02 to PC image

[Ethan Dicks via cctalk]

On Fri, Dec 15, 2017 at 9:38 AM, systems_glitch
 wrote:
> vtserver does indeed work for transferring RL02 contents to a binary image,
> suitable for use with SIMH or E11 or whatever.

Yep.  I backed up the RD52 in a new-to-me MicroPDP-11 and it took hours.

> Be advised, it takes a *long*
> time, even on a 11/73 with the serial port turned up to 38400 bps.

Has anyone done any console serial port hacking for speed on Qbus or
Unibus?  On something integrated like a KDF11-B it might not be so
easy, but maybe a DLV11J or a DL11W?

I'd think hitting 115200 would be really sweet, if everything can keep
up.  Totally worth some experimentation to see what part gives out at
ludicrous speed.

-ethan

Re: RL02 to PC image

[Glen Slick via cctalk]

On Fri, Dec 15, 2017 at 10:34 AM, Ethan Dicks via cctalk
 wrote:
> On Fri, Dec 15, 2017 at 9:38 AM, systems_glitch
>  wrote:
>> vtserver does indeed work for transferring RL02 contents to a binary image,
>> suitable for use with SIMH or E11 or whatever.
>
> Yep.  I backed up the RD52 in a new-to-me MicroPDP-11 and it took hours.
>
>> Be advised, it takes a *long*
>> time, even on a 11/73 with the serial port turned up to 38400 bps.
>
> Has anyone done any console serial port hacking for speed on Qbus or
> Unibus?  On something integrated like a KDF11-B it might not be so
> easy, but maybe a DLV11J or a DL11W?
>
> I'd think hitting 115200 would be really sweet, if everything can keep
> up.  Totally worth some experimentation to see what part gives out at
> ludicrous speed.
>
> -ethan

My method of creating images of several RL02 disks was to set up a
PDP-11 system running 2.11BSD with an RL02 controller and Ethernet
interface, then 'dd' the disks to image files on the local system and
then FTP the image files out to a modern system. Still seemed slow,
but not as slow as a serial port connection.

Re: ISC Intecolor 8300 terminal

[Gregory McGill via cctalk]

Thank you all for the information I found a power cord on ebay!  I really
appreciate it!

Greg

On Thu, Dec 14, 2017 at 11:26 PM, Brent Hilpert via cctalk <
cctalk@classiccmp.org> wrote:

>
> On 2017-Dec-14, at 10:20 PM, Chuck Guzis via cctalk wrote:
>
> > On 12/14/2017 08:58 PM, Gregory McGill via cctalk wrote:
> >> I recently picked this up from shopgoodwill and it has an older power
> >> plug.  It is NOT a standard plug as shown in the picture below that is
> too
> >> tall and pins are smaller etc..
> >>
> >> Anyone know the name of this 'standard' so I can find a cable? Or
> possibly
> >> have one  around I can get from you?
> >>
> >> Greg
> >>
> >> https://sgws3productimages.azureedge.net/sgwproductimages/images/8/11-
> 25-2017/31024892557io.JPG
> >> https://photos.app.goo.gl/HzXVUDqfCv5U7zBC2
> >>
> >
> > From the looks of your unit, it might just be simpler to fit it with a
> > standard IEC receptacle.  Note that the cutout is already rectangular,
> > so an IEC may just fit without any case modification.
>
>
> The screw holes have a slightly different spacing between the two types,
> they have to be 'moved' (filed) out about a mm each;
> and it looks like the existing opening will have to be enlarged vertically
> a bit.
> If there's nothing interfering on the inside it does look like an easy
> candidate for replacement with IEC.

Re: RL02 to PC image

[systems_glitch via cctalk]

It's on my list of things to do -- you can run external clock into DL11 and
DLV11-J style connectors, and IM6402 UARTs are supposed to go up to 2 mbit,
so somewhere between 38400 and 2 mbit should be possible. I believe it'll
require external RS-232 transceivers due to the design of the ones used on
various DEC boards. As you say, whether or not the bus/CPU can keep up is
another matter! Figure if I can get any real improvement out of it, I'll
lay out a board and provide high-speed kits.

Anyone know of a 40-pin UART with a FIFO? :)

Thanks,
Jonathan

On Fri, Dec 15, 2017 at 1:34 PM, Ethan Dicks via cctalk <
cctalk@classiccmp.org> wrote:

> On Fri, Dec 15, 2017 at 9:38 AM, systems_glitch
>  wrote:
> > vtserver does indeed work for transferring RL02 contents to a binary
> image,
> > suitable for use with SIMH or E11 or whatever.
>
> Yep.  I backed up the RD52 in a new-to-me MicroPDP-11 and it took hours.
>
> > Be advised, it takes a *long*
> > time, even on a 11/73 with the serial port turned up to 38400 bps.
>
> Has anyone done any console serial port hacking for speed on Qbus or
> Unibus?  On something integrated like a KDF11-B it might not be so
> easy, but maybe a DLV11J or a DL11W?
>
> I'd think hitting 115200 would be really sweet, if everything can keep
> up.  Totally worth some experimentation to see what part gives out at
> ludicrous speed.
>
> -ethan
>

Re: RL02 to PC image

[systems_glitch via cctalk]

This would be the Right Way. I've got my PDP-11/73 set up for that, I still
need to build the kernel driver for the Ethernet interface and get TCP/IP
going. I have dozens of RX02 floppies to work through, much faster than
serial, and the vtserver `rx` driver has a bug in it anyway where it
continues reading past the end of the media (not harmful to the disk/drive,
but you have to sit there and watch it).

Thanks,
Jonathan

On Fri, Dec 15, 2017 at 1:40 PM, Glen Slick via cctalk <
cctalk@classiccmp.org> wrote:

> On Fri, Dec 15, 2017 at 10:34 AM, Ethan Dicks via cctalk
>  wrote:
> > On Fri, Dec 15, 2017 at 9:38 AM, systems_glitch
> >  wrote:
> >> vtserver does indeed work for transferring RL02 contents to a binary
> image,
> >> suitable for use with SIMH or E11 or whatever.
> >
> > Yep.  I backed up the RD52 in a new-to-me MicroPDP-11 and it took hours.
> >
> >> Be advised, it takes a *long*
> >> time, even on a 11/73 with the serial port turned up to 38400 bps.
> >
> > Has anyone done any console serial port hacking for speed on Qbus or
> > Unibus?  On something integrated like a KDF11-B it might not be so
> > easy, but maybe a DLV11J or a DL11W?
> >
> > I'd think hitting 115200 would be really sweet, if everything can keep
> > up.  Totally worth some experimentation to see what part gives out at
> > ludicrous speed.
> >
> > -ethan
>
> My method of creating images of several RL02 disks was to set up a
> PDP-11 system running 2.11BSD with an RL02 controller and Ethernet
> interface, then 'dd' the disks to image files on the local system and
> then FTP the image files out to a modern system. Still seemed slow,
> but not as slow as a serial port connection.
>

FS: WD37C65 PLCC44 x 13

[Chuck Guzis via cctalk]

Anyone looking for these old WD controllers?   I've got a mixed tube of
the WD37C65-02 parts and the SMC FDC37C65B equivalents.  $10+shipping
takes the lot.

--Chuck

Re: RL02 to PC image

[Vincent Slyngstad via cctalk]

From: Ethan Dicks: Friday, December 15, 2017 6:15 AM

On Fri, Dec 15, 2017 at 2:36 AM, Vincent Slyngstad via cctalk
 wrote:

Mine are available here:
http://www.so-much-stuff.com/pdp8/cad/3d.php

It's a fairly finicky print.  Fine detail and cantilevered thin pins that
need to be straight and reasonably strong.


I printed out one on a FormLabs Form1+.  Came out very nicely.


Yeah, I think a resin printer should handle the detail nicely.


Shapeways does a fine job printing them for about $4, though.


I don't know that it was much cheaper when I did it - the resin is $125/liter.

The advantage of Shapeways is you can have it made out of something
less brittle than FormLab resin.  My part will work, but I wouldn't
want to drop it - the legs would probably shatter.


I hear there are less brittle resins these days, but yeah.  If the resin
is like the resin print from Shapeways, I'd even worry that a bit of
torque inserting or removing it would snap off a pin.

The sintered nylon from Shapeways, on the other hand, is tough,
only a few bucks, and minimal hassle (except for the wait).  Even
comes out in translucent white :-).

Are there another print vendors/technologies folks have had luck
with with small, finely detailed replacement parts?

   Vince 

Re: RL02 to PC image

[Ethan Dicks via cctalk]

On Fri, Dec 15, 2017 at 1:49 PM, systems_glitch
 wrote:
> It's on my list of things to do -- you can run external clock into DL11 and
> DLV11-J style connectors, and IM6402 UARTs are supposed to go up to 2 mbit,
> so somewhere between 38400 and 2 mbit should be possible.

Good to know the IM6402s will go that fast.

> I believe it'll
> require external RS-232 transceivers due to the design of the ones used on
> various DEC boards.

Yeah... that's kinda why I was thinking of hacking a DLV11J or
DL11-W... I have a number of each of those and have no problems making
multiple changes for the purposes of media slurping.  They are common
boards and hacking 1-2 of them isn't going to increase scarcity.

A side-effect of modding the DLV11J could be high-speed TU58 emulation...

> Figure if I can get any real improvement out of it, I'll lay
> out a board and provide high-speed kits.

I'm available for any experimentation, etc.  I have plenty of
mid-range PDP-11 hardware for this sort of experimentation.

> Anyone know of a 40-pin UART with a FIFO? :)

I do not, but it would have to be a transparent FIFO - that was one of
the problems with the 8250/16550 was the host code had to know about
the FIFO, so the 16550 worked fine as a 8250 but also supported the
16-byte FIFO that drastically cut interrupt overhead.  I do not know
of any material enhancements to the IM6402 in any subsequent chips.

-ethan

RE: RL02 to PC image

[Henk Gooijen via cctalk]

Van: Ethan Dicks via cctalk
Verzonden: vrijdag 15 december 2017 19:34
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Re: RL02 to PC image

On Fri, Dec 15, 2017 at 9:38 AM, systems_glitch
 wrote:
> vtserver does indeed work for transferring RL02 contents to a binary image,
> suitable for use with SIMH or E11 or whatever.

Yep.  I backed up the RD52 in a new-to-me MicroPDP-11 and it took hours.

> Be advised, it takes a *long*
> time, even on a 11/73 with the serial port turned up to 38400 bps.

Has anyone done any console serial port hacking for speed on Qbus or
Unibus?  On something integrated like a KDF11-B it might not be so
easy, but maybe a DLV11J or a DL11W?

I'd think hitting 115200 would be really sweet, if everything can keep
up.  Totally worth some experimentation to see what part gives out at
ludicrous speed.

-ethan


I have not yet had time to build/test it, but a few months ago there
was an RL01/RL02 emulator project on VCF.  You need a PDP-11
with RL11 controller. The RL0x emultor connects to the RL11
just as an RL01/RL02 disk drive and you can assign it any drive
number (0 - 3).
But what is really nice is that the emulator cooperates with
real RL drives. So, you can have one real RL0x drive and up
to 3 “emulated” RL drives. The storage is a flash card.
The RT-11) command .COPY DL0:*.* DL1: works (where #0 is real,
and #1 is flash).
After the copy you pull the flash card and copy it on a PC.

Re: RL02 to PC image

[william degnan via cctalk]

>
>
>
>
> I have not yet had time to build/test it, but a few months ago there
> was an RL01/RL02 emulator project on VCF.  You need a PDP-11
> with RL11 controller. The RL0x emultor connects to the RL11
> just as an RL01/RL02 disk drive and you can assign it any drive
> number (0 - 3).
> But what is really nice is that the emulator cooperates with
> real RL drives. So, you can have one real RL0x drive and up
> to 3 “emulated” RL drives. The storage is a flash card.
> The RT-11) command .COPY DL0:*.* DL1: works (where #0 is real,
> and #1 is flash).
> After the copy you pull the flash card and copy it on a PC.
>
>
I still need to build mine
b

Re: RL02 to PC image

[Chris Elmquist via cctalk]

I thought about doing this with an FTDI FT245, which is a parallel to USB FIFO 
device that looks like a USB serial port to the USB-side host.  USB protocol 
will manage all the “flow control” and so the PDP can write to it as fast as it 
can.

We did a similar thing on Heathkit H89 and H8 machines, replacing an 8250 UART 
with the FT245 and then rolling some code on the Heath side to send and receive 
files to a PC host.

--
Chris Elmquist

> On Dec 15, 2017, at 12:49 PM, systems_glitch via cctalk 
>  wrote:
> 
> It's on my list of things to do -- you can run external clock into DL11 and
> DLV11-J style connectors, and IM6402 UARTs are supposed to go up to 2 mbit,
> so somewhere between 38400 and 2 mbit should be possible. I believe it'll
> require external RS-232 transceivers due to the design of the ones used on
> various DEC boards. As you say, whether or not the bus/CPU can keep up is
> another matter! Figure if I can get any real improvement out of it, I'll
> lay out a board and provide high-speed kits.
> 
> Anyone know of a 40-pin UART with a FIFO? :)
> 
> Thanks,
> Jonathan
> 
> On Fri, Dec 15, 2017 at 1:34 PM, Ethan Dicks via cctalk <
> cctalk@classiccmp.org> wrote:
> 
>> On Fri, Dec 15, 2017 at 9:38 AM, systems_glitch
>>  wrote:
>>> vtserver does indeed work for transferring RL02 contents to a binary
>> image,
>>> suitable for use with SIMH or E11 or whatever.
>> 
>> Yep.  I backed up the RD52 in a new-to-me MicroPDP-11 and it took hours.
>> 
>>> Be advised, it takes a *long*
>>> time, even on a 11/73 with the serial port turned up to 38400 bps.
>> 
>> Has anyone done any console serial port hacking for speed on Qbus or
>> Unibus?  On something integrated like a KDF11-B it might not be so
>> easy, but maybe a DLV11J or a DL11W?
>> 
>> I'd think hitting 115200 would be really sweet, if everything can keep
>> up.  Totally worth some experimentation to see what part gives out at
>> ludicrous speed.
>> 
>> -ethan
>> 

Re: RL02 to PC image

[Brian L. Stuart via cctalk]

On Fri, 12/15/17, Ethan Dicks via cctalk  wrote:
> On Fri, Dec 15, 2017 at 1:49 PM, systems_glitch  
> wrote:
> > It's on my list of things to do -- you can run external clock into DL11 and
> > DLV11-J style connectors, and IM6402 UARTs are supposed to go up to 2 mbit,
> > so somewhere between 38400 and 2 mbit should be possible.
> 
>  A side-effect of modding the DLV11J could be high-speed TU58 emulation...

The LSI-11 I had at last spring's VCFs did that with a little home-brew
6809 board I was using for TU58 emulation.  I wasn't going into a
DLV11 per se, but into an MXV11.

I'd have to go back and look at the details to see how fast it was actually
running.  Somewhere in the back of my mind, I had to back off a little
bit on what the hardware could do because something on the software
side couldn't take it that fast.

BLS

Re: RL02 to PC image

[Chuck Guzis via cctalk]

On 12/15/2017 08:09 PM, Brian L. Stuart via cctalk wrote:

> I'd have to go back and look at the details to see how fast it was actually
> running.  Somewhere in the back of my mind, I had to back off a little
> bit on what the hardware could do because something on the software
> side couldn't take it that fast.

I've lately been doing the data transfer stuff using STM32F407
development boards.  Cheap ($12 shipped), with a 168MHz ARM CPU and
84Mhz peripheral clocks with multichannel DMA to 192K RAM.  Lots of fast
5V tolerant GPIO.

In my case, I use the SDIO facility (4 wire) to an SDHC, with Chan's
FATFS filesystem code.   Do all your imaging to SDHC (a 16 or 32GB card
should image a lot of RL02s) and then read the card on a PC platform.

Simple, fast and cheap.   If you need UARTs, they're on the chip as well
and can run stupid-fast.

Welcome to the 21st century.

Cheers,
Chuck