I notice you didn't say TK50 here :)
I have some TK50's as well. They really are not that bad, the key
problem with them is the bearings in the two capstans: They're old, oil
has dried out, and as a result they drag on the tapes. Plus one of them
has a tachometer wheel under it, and if it
On Mon, Feb 21, 2022, 8:34 PM Chris Zach via cctalk
wrote:
> > Are RX50 drives less robust than what was used to install Windoze 95?
>
> Well, they're 10 years older than your Windows 95 floppy so sort of. I
> still have some working RX50's here but they are a bit fickle. That's a
> big reason
Are RX50 drives less robust than what was used to install Windoze 95?
Well, they're 10 years older than your Windows 95 floppy so sort of. I
still have some working RX50's here but they are a bit fickle. That's a
big reason why I went to TK70's, more reliable.
Are any of my distro kits not
On Mon, 21 Feb 2022, Chris Zach via cctalk wrote:
I think installing 30 floppy disks would be an exercise in insanity:
No arguments there.
That
would probably wear down an RX50 drive to the nubbins.
Are RX50 drives less robust than what was used to install Windoze 95?
There is. What's in my floppy pile here:
Micro RSX11 4.0 9 floppies base
Micro RSTS 2.1 20 floppy disks
Ultrix 11 2.0 30 floppy disks
I think installing 30 floppy disks would be an exercise in insanity:
That would probably wear down an RX50 drive to the nubbins.
I also seem to
On Feb 21, 2022, at 4:32 PM, Rod Smallwood via cctalk
wrote:
>
> Hi
>
> I have built an 11/83 in a BA23 box.
>
> It has a KDJ-11B, 2mB PMI memory, an RQDX3 with an RX50 attached,
>
> Plus a CMD CQD 220A Disk controller with a digital RH18A 2Gig SCSI drive
> attached.
>
> Diag sees
On 22/02/2022 00:32, Rod Smallwood via cctalk wrote:
Hi
I have built an 11/83 in a BA23 box.
It has a KDJ-11B, 2mB PMI memory, an RQDX3 with an RX50 attached,
Plus a CMD CQD 220A Disk controller with a digital RH18A 2Gig SCSI
drive attached.
Diag sees drive as RA82.
It boots and
On 22/02/2022 00:55, Glen Slick via cctalk wrote:
On Mon, Feb 21, 2022, 4:32 PM Rod Smallwood via cctalk <
cctalk@classiccmp.org> wrote:
Hi
I have built an 11/83 in a BA23 box.
It has a KDJ-11B, 2mB PMI memory, an RQDX3 with an RX50 attached,
Plus a CMD CQD 220A Disk controller
On 22/02/2022 02:35, Chris Zach via cctalk wrote:
It has a KDJ-11B, 2mB PMI memory, an RQDX3 with an RX50 attached,
Plus a CMD CQD 220A Disk controller with a digital RH18A 2Gig SCSI
drive attached.
Hm, that's an interesting setup. If it has two MCSP controllers then
one of them is at
On Feb 21, 2022, at 19:32, Rod Smallwood via cctalk
wrote:
> So how do I install an operating system?
You can install 2.11BSD rather normally using VTserver. It makes your modern
computer into a pseudo tape protocol via your serial port to the pdp console.
It was written for this purpose and
It has a KDJ-11B, 2mB PMI memory, an RQDX3 with an RX50 attached,
Plus a CMD CQD 220A Disk controller with a digital RH18A 2Gig SCSI drive
attached.
Hm, that's an interesting setup. If it has two MCSP controllers then one
of them is at an alternate address. I never really worked out how
Ben said
> This requires a REAL MACHINE SHOP ... none this 3d printer stuff. I
> would recommend a building a 35mm film punch and reader, as film stock
> is still easy to find compared to paper tape. Zuse used them for his
> computers in Germany on the 40's. Quality Mechanical stuff is lost high
On 2/21/2022 6:55 PM, Glen Slick via cctalk wrote:
On Mon, Feb 21, 2022, 4:32 PM Rod Smallwood via cctalk <
cctalk@classiccmp.org> wrote:
Hi
I have built an 11/83 in a BA23 box.
It has a KDJ-11B, 2mB PMI memory, an RQDX3 with an RX50 attached,
Plus a CMD CQD 220A Disk controller
> On Feb 21, 2022, at 6:07 PM, Guy Fedorkow wrote:
>
> hi Paul,
> Yes, I should have said -- I'm looking for a machine that can punch under
> control of a computer.
> Whirlwind actually used seven-bit Flexowriters for reading and punching
> (along with a high-speed reader later on), but
On Feb 21, 2022, at 4:26 PM, Guy Fedorkow via cctalk cctalk@classiccmp.org>
wrote:
Greetings CC-Talk,
I've been working on a low-budget project to help to introduce
students to history of computing through material we have from MIT's 1950's
Whirlwind project. The activity would have more
On Mon, Feb 21, 2022, 4:32 PM Rod Smallwood via cctalk <
cctalk@classiccmp.org> wrote:
> Hi
>
>I have built an 11/83 in a BA23 box.
>
>It has a KDJ-11B, 2mB PMI memory, an RQDX3 with an RX50 attached,
>
> Plus a CMD CQD 220A Disk controller with a digital RH18A 2Gig SCSI drive
> attached.
> On Feb 21, 2022, at 7:32 PM, Rod Smallwood via cctalk
> wrote:
>
> Hi
>
> I have built an 11/83 in a BA23 box.
>
> It has a KDJ-11B, 2mB PMI memory, an RQDX3 with an RX50 attached,
>
> Plus a CMD CQD 220A Disk controller with a digital RH18A 2Gig SCSI drive
> attached.
>
> Diag
If anybody actually wants to build one I have the important part, motor
driven with solenoid operated cam driven punches; would only need a
suitable interface and maybe a cabinet.
Don't know if it would be worth while with today's shipping costs though,
unless you're local in the Toronto area.
m
On 2022-02-21 3:11 p.m., Paul Koning via cctalk wrote:
On Feb 21, 2022, at 4:26 PM, Guy Fedorkow via cctalk
wrote:
[apologies if this is a dup, but I didn't see it coming back in any of the
cctalk digests]
Greetings CC-Talk,
I've been working on a low-budget project to help to
Hi
I have built an 11/83 in a BA23 box.
It has a KDJ-11B, 2mB PMI memory, an RQDX3 with an RX50 attached,
Plus a CMD CQD 220A Disk controller with a digital RH18A 2Gig SCSI drive
attached.
Diag sees drive as RA82.
It boots and runs the diag disk and XXDP+ just fine.
I do not have
> On Feb 21, 2022, at 4:26 PM, Guy Fedorkow via cctalk
> wrote:
>
> [apologies if this is a dup, but I didn't see it coming back in any of the
> cctalk digests]
>
> Greetings CC-Talk,
> I've been working on a low-budget project to help to introduce students to
> history of computing
If you can find on a Teletype ASR33 is the perfect example of a
reader/punch and a hard copy terminal all at the same time.
If you find 2, please let me know :)
On 2/21/2022 3:26 PM, Guy Fedorkow via cctalk wrote:
[apologies if this is a dup, but I didn't see it coming back in any of
the
[apologies if this is a dup, but I didn't see it coming back in any of
the cctalk digests]
Greetings CC-Talk,
I've been working on a low-budget project to help to introduce
students to history of computing through material we have from MIT's
1950's Whirlwind project. The activity would
> On Feb 21, 2022, at 10:29 AM, Fritz Mueller wrote:
> Also, in taking a look this morning at the M9302 schematic around page 70 in
> the commonly available 11/34 engineering drawings set (rev B, Sep 76), there
> appears to be a mistake! The output of the SACK turnaround circuit is
>
>> From: Fritz Mueller
>> I think you are thinking of the M9302, Noel: a far-side terminator card
>> with integrated SACK turnaround?
> On Feb 21, 2022, at 7:19 AM, Noel Chiappa via cctalk
> wrote:
> No; the M8264 Sack Timeout module. What's an M8264, you say? ...
Ah, quite interesting, didn’t
>> On Feb 19, 2022, at 10:51 AM, Noel Chiappa wrote:
>> The -11/34 (not the /34A) has something unusual for grant timeouts,
>> but I forget the details. I'll look it up.
And here it is...
> From: Fritz Mueller
> I think you are thinking of the M9302, Noel: a far-side
On Sun, 20 Feb 2022 at 21:20, Bill Gunshannon via cctalk
wrote:
>
> On 2/20/22 15:31, Chuck Guzis via cctalk wrote:
> > On 2/20/22 10:10, Mark Kahrs via cctalk wrote:
> >> I heard Butler Lampson once exclaim that ECL design was in some ways easier
> >> than TTL. If you terminated every line, you
27 matches
Mail list logo
