RE: tape baking (Rob Jarratt)

[Rob Jarratt via cctalk]

> -Original Message-
> From: Eric Smith [mailto:space...@gmail.com]
> Sent: 11 July 2017 04:02
> To: r...@jarratt.me.uk; Rob Jarratt <robert.jarr...@ntlworld.com>; General
> Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org>
> Cc: Rich Alderson <ri...@livingcomputers.org>; General Discussion: On-Topic
> Posts <cct...@classiccmp.org>
> Subject: Re: tape baking (Rob Jarratt)
> 
> On Mon, Jul 10, 2017 at 3:38 PM, Rob Jarratt via cctalk
> <cctalk@classiccmp.org> wrote:
> Do you have any videos (with sound!) of the LP20 operating?
> 
> The LP20 is just the printer interface. It looks exactly the same whether it's
> operating or not, and doesn't make any sound unless something is very very
> wrong.
> 


Oh! I didn't know that. The document I have on the configuration of the system 
I used says it has "One DEC LP20H line printer with a character set of 96 
characters operating at 925 lines per minute". Looks like I had not understood 
the nuance of the extra letter on the end.

Regards

Rob

Re: tape baking (Rob Jarratt)

[Eric Smith via cctalk]

On Mon, Jul 10, 2017 at 3:38 PM, Rob Jarratt via cctalk <
cctalk@classiccmp.org> wrote:

> Do you have any videos (with sound!) of the LP20 operating?
>

The LP20 is just the printer interface. It looks exactly the same whether
it's operating or not, and doesn't make any sound unless something is very
very wrong.

RE: tape baking (Rob Jarratt)

[Rob Jarratt via cctalk]

> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Rich
> Alderson via cctalk
> Sent: 10 July 2017 20:05
> To: 'General Discussion: On-Topic Posts' <cct...@classiccmp.org>
> Subject: RE: tape baking (Rob Jarratt)
> 
> From: Michael Thompson
> Sent: Sunday, July 09, 2017 7:41 AM
> 
> > A while ago the Living Computers: Museum + Labs borrowed my LP20
> > controller so they could clone the boards for one of their PDP-10s.
> > Since they went through that effort they must have a big line printer.
> 
> LP27, specifically.  An OEM'd BP1500 from Data Products.  The LP20 lives in 
> the
> front end of the 2065 running Tops-10 v7.04.
> 


Do you have any videos (with sound!) of the LP20 operating?

Regards

Rob

RE: tape baking (Rob Jarratt)

[Rich Alderson via cctalk]

From: Michael Thompson
Sent: Sunday, July 09, 2017 7:41 AM

> A while ago the Living Computers: Museum + Labs borrowed my LP20 controller
> so they could clone the boards for one of their PDP-10s. Since they went
> through that effort they must have a big line printer.

LP27, specifically.  An OEM'd BP1500 from Data Products.  The LP20 lives in the
front end of the 2065 running Tops-10 v7.04.

We have other big printers on other big iron, of course.

Rich

Rich Alderson
Vintage Computing Sr. Systems Engineer
Living Computers: Museum + Labs
2245 1st Avenue S
Seattle, WA 98134

mailto:ri...@livingcomputers.org

http://www.LivingComputers.org/

RE: tape baking (Rob Jarratt)

[Rob Jarratt via cctalk]

> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Michael
> Thompson via cctalk
> Sent: 09 July 2017 15:41
> To: cctech <cct...@classiccmp.org>
> Subject: Re: tape baking (Rob Jarratt)
> 
> >
> > Date: Fri, 7 Jul 2017 21:19:03 +0100
> > From: "Rob Jarratt" <robert.jarr...@ntlworld.com>
> > Subject: RE: tape baking
> >
> > > I long to hear again the sound of the line printer that was attached
> > > to
> > the
> > > DECSYSTEM-20 I used to use. I think it was a drum printer but I
> > > don't
> > know
> > the
> > > model (I may have some materials around that mention the model, not
> > > sure where they are now though). I could never house one of these
> > > though, if
> > any
> > > still exist.
> > >
> >
> >
> > I looked it up, it was a DEC LP20H that they had. I'd love to hear one
> > of those running again. Do any still exist?
> >
> > Regards
> >
> > Rob
> >
> 
> A while ago the Living Computers: Museum + Labs borrowed my LP20
> controller so they could clone the boards for one of their PDP-10s. Since they
> went through that effort they must have a big line printer.
> 

I have been to LCM a number of times, but I live a *very* long way from there 
and I don't know when I am likely to go again. However, if I do, I will ask 
about any LP20s.

Regards

Rob

Re: tape baking (Rob Jarratt)

[Michael Thompson via cctalk]

>
> Date: Fri, 7 Jul 2017 21:19:03 +0100
> From: "Rob Jarratt" 
> Subject: RE: tape baking
>
> > I long to hear again the sound of the line printer that was attached to
> the
> > DECSYSTEM-20 I used to use. I think it was a drum printer but I don't
> know
> the
> > model (I may have some materials around that mention the model, not sure
> > where they are now though). I could never house one of these though, if
> any
> > still exist.
> >
>
>
> I looked it up, it was a DEC LP20H that they had. I'd love to hear one of
> those running again. Do any still exist?
>
> Regards
>
> Rob
>

A while ago the Living Computers: Museum + Labs borrowed my LP20 controller
so they could clone the boards for one of their PDP-10s. Since they went
through that effort they must have a big line printer.

-- 
Michael Thompson