> Well, as others have pointed out, a "tape transport" is not the whole
> ball-of-wax. You need the ability to format the tape into blocks and then
> control tape motion in terms of those blocks. That's what you'd be
> responsible for in your added electronics. From the Introduction in the
>
For generic drives of either 800 or 1600, there were Pertec formatters
that drove the three cable Pertec interface (read / write / motion) and
was compatible with the P1 P2 parallel formatted interface.
The ones I had were one format or another. And they had to be strapped
to the speed of t
Well, as others have pointed out, a "tape transport" is not the whole
ball-of-wax. You need the ability to format the tape into blocks and then
control tape motion in terms of those blocks. That's what you'd be responsible
for in your added electronics. From the Introduction in the Kennedy ma
I'll look for mine when I can and send you numbers.
On Tue, Sep 26, 2017 at 12:36 AM, jim stephens via cctalk <
cctalk@classiccmp.org> wrote:
> Thanks, Paul
>
> Only thing DEC is the design, and the board stiffener and extractor bar.
> They bought the 6u product and it looks to be standard DEC.
Ah, yeah that's actually better for my purpose. I'm more concerned with the
data interface - can I just read and write bits at will or are there
contingencies as someone mentioned before?
=]
On Tue, Sep 26, 2017 at 12:06 AM Paul Birkel wrote:
> -Original Message-
> From: cctalk [mailto:
Thanks, Paul
Only thing DEC is the design, and the board stiffener and extractor
bar. They bought the 6u product and it looks to be standard DEC.
The only thing that is interesting and perhaps are the memory cards.
They have the appearance of not being as custom and oddball as the
rest. T
we see this same effect in large studio cameras on board monitors they have. we
have just left as us as the large all tube innards do not work alas Ed#
Sent from AOL Mobile Mail
On Monday, September 25, 2017 Ian S. King wrote:
On Mon, Sep 25, 2017 at 10:37 AM, wrote:
Folks - Any idea wh
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Anders Nelson
via cctalk
Sent: Monday, September 25, 2017 7:01 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: HP 7970E - interest to split?
Hmmm, interesting. How does the 7970 compar
On Mon, Sep 25, 2017 at 10:37 AM, wrote:
> Folks - Any idea what causes the screen rot?
>
> also any preventative measures to keep it from happening or spreading?
> Ed#
>
>
>
> It's the understood chemical decomposition of the adhesive that holds the
screen shield to the CRT. It's pretty much
Just a friendly bump. Did anyone post this on vcfed or any mac collector
forums?
Original message From: Electronics Plus via cctalk
Date: 9/22/17 1:01 PM (GMT-06:00) To: "'General
Discussion: On-Topic and Off-Topic Posts'" Subject: I
REALLY need a scrounger in Richmond, VA
The K & T boards I have are Kearney and Trecker, and I don't think DEC made
them.
Paul
On Mon, Sep 25, 2017 at 9:52 PM, jim stephens via cctalk <
cctalk@classiccmp.org> wrote:
> I have a stack of boards I'm trying to figure out. They may be a bunch of
> boards made for a user of DEC PDP 11s or
I randomly found this in case anyone's interested:
https://www.recycledgoods.com/data-general-terminal-keyboard-for-data-general-d-412-terminal-6348-a/
--
Anders Nelson
+1 (517) 775-6129
www.erogear.com
OK many thanks shall do!
Sent from AOL Mobile Mail
On Monday, September 25, 2017 jim stephens via cctalk
wrote:
On 9/25/2017 8:31 PM, Ed via cctalk wrote:
> I forget does this take attachments or inline images?-Ed#
No images on either list, sorry. Post somewhere and share.
Thanks
Jim
On 09/25/2017 09:52 PM, jim stephens via cctalk wrote:
I have a stack of boards I'm trying to figure out. They
may be a bunch of boards made for a user of DEC PDP 11s or
8s as addons to their own lines as embedded systems, or
they may have had some other sales.
KT in the etch, and in one case
On 9/25/2017 8:31 PM, Ed via cctalk wrote:
I forget does this take attachments or inline images?-Ed#
No images on either list, sorry. Post somewhere and share.
Thanks
Jim
I forget does this take attachments or inline images?-Ed#
I have a stack of boards I'm trying to figure out. They may be a bunch
of boards made for a user of DEC PDP 11s or 8s as addons to their own
lines as embedded systems, or they may have had some other sales.
KT in the etch, and in one case KT Memories with a stylized logo.
I put the photos on
well. do not see any 2007
so bought one incase the 1000 is the one that uses that one.
easier than driving back to the building.
however. I did find a but ofother HP keys even some ace
style?
found my open the 2645 thingis my hp 1000 beltbuckle ( bif g bronze
t
On 9/25/2017 1:46 PM, Mike Loewen via cctalk wrote:
On Fri, 22 Sep 2017, Christian Corti via cctalk wrote:
On Thu, 21 Sep 2017, Sam O'nella wrote:
Should be easy but my mobile google fu is failing. Didn't Jay and a
few
others know if a vintage computer key database/site somewhere?
Would t
> If/when you get around to it, start by sorting by blank.
Good thought.
> On the double-sided Chicago keys, if you have an extra that matches
> H2007, send one to Dennis to use as a "master" for subsequent demand.
Not necessary, as I have a full set of pattern keys.
I'd be interested in a c
> The tricky bit to cutting them is that when Chicago designed them, they
> developed several hundred unique curves instead of a set of numbered cut
> depths. However, manufacturers of numerical key machines have worked it
> out, probably by pretending there are a large number of cut positions.
C
OK thanks for the advice! ...
Ed# www.smecc.org
Sent from AOL Mobile Mail
On Monday, September 25, 2017 Fred Cisin via cctalk
wrote:
On Mon, 25 Sep 2017, Ed via cctalk wrote:
> FANTASTIC -!
> I still need to triage the shoe boxes too-
If/when you get around to it, start by sorting by blank.
O
On Mon, 25 Sep 2017, Ed via cctalk wrote:
FANTASTIC -!
I still need to triage the shoe boxes too-
If/when you get around to it, start by sorting by blank.
On the double-sided Chicago keys, if you have an extra that matches H2007,
send one to Dennis to use as a "master" for subsequent demand.
Thank you Dennis, we are likely to need your help often.
On Mon, 25 Sep 2017, Dennis Boone via cctalk wrote:
The tricky bit to cutting them is that when Chicago designed them, they
developed several hundred unique curves instead of a set of numbered cut
depths. However, manufacturers of numeric
Hmmm, interesting. How does the 7970 compare to the Kennedy 9800?:
http://www.ebay.com/itm/Kennedy-9800-9-Track-Data-Tape-Subsystem/232493086636
For the same price the Kennedy drive looks more beautimous...
=]
--
Anders Nelson
+1 (517) 775-6129
www.erogear.com
On Mon, Sep 25, 2017 at 2:18 PM
Cool! Mine are all older (MP3000, R390, 4331). I have a 3174-61 (with
ethernet). I haven’t quite brought myself to getting a 3174-1 (there are
several on ebay for not unreasonable prices).
There are some 3178’s and 3179’s on ebay (at least the last time I looked).
You *may* have to find a P
Yes, I have a 3174 with escon. z800
They _are_ hard to find, I've been looking for two years.
On Mon, Sep 25, 2017 at 11:31 AM, Guy Sotomayor Jr wrote:
> You realize that a CUT terminal (327x, 317x, etc) all require an
> “establishment controller” in order to work?
>
> Something like a 3174-1,
> I received a key that was made based on the Chicago Lock H2007 key in
> Christian's picture:
> It works!
> I've asked our resident keymaster to post any specifications needed
> to duplicate this key.
The key is an H2007. This is one of the Chicago double-sided types.
The keyblank is an I
FANTASTIC -!
I still need to triage the shoe boxes too-
Ed#
In a message dated 9/25/2017 1:47:00 P.M. US Mountain Standard Time,
cctalk@classiccmp.org writes:
I received a key that was made based on the Chicago Lock H2007 key in
Christian's picture:
http://computermuseum.informatik.
On Fri, 22 Sep 2017, Christian Corti via cctalk wrote:
On Thu, 21 Sep 2017, Sam O'nella wrote:
Should be easy but my mobile google fu is failing. Didn't Jay and a few
others know if a vintage computer key database/site somewhere? Would that
possibly have or benefit from getting afterwards? n
> one option ... is to buy spare boards so you can board-swap to localize
> the problem to one board.
> ...
> start with another serial card
Also, if you get a working serial card to use for a console, and you get a
working system as a result, you can then use that ensenble to try
You realize that a CUT terminal (327x, 317x, etc) all require an “establishment
controller” in order to work?
Something like a 3174-1, 3174-11 or 3174-6x.
Also 327x terminals are *hard* to find. Partly because the keyboard collectors
(may they be forever damned)
take the keyboards and scrap th
ED#WROTE
What is really scarce is a 7 track 7970b!
I have a 7970B (needs some repair) that I would LOVE to trade for a 7970E.
J
Folks - Any idea what causes the screen rot?
also any preventative measures to keep it from happening or spreading?
Ed#
In a message dated 9/25/2017 10:20:36 A.M. US Mountain Standard Time,
isk...@uw.edu writes:
On Sun, Sep 24, 2017 at 8:13 PM, Ed via cctalk
wrote:
The shippi
What is really scarce is a 7 track 7970b!
Had one once... it was the first used HP item I ever sold when I was in
the used computer biz early 80s.
Wish now I had kept it!
Ed#
In a message dated 9/25/2017 10:26:10 A.M. US Mountain Standard Time,
cctalk@classiccmp.org writes:
On
On 09/25/2017 08:27 AM, Anders Nelson via cctalk wrote:
> Cool! Aaa, good to know one of them can't be used individually.
>
> What might be involved in using one with a PDP-8/e emulated on SimH? I can
> build/program any sort of custom USB device to interface this big stuff,
> which I'll open-sour
That sounds very plausible, Mike.
It's too far for me, but I bet somebody local could get both lots for
$1000, by picking them up and saving them the hassle of crating etc.
--
Robert
On Mon, Sep 25, 2017 at 12:07 PM, Mike Loewen via cctalk
wrote:
> On Mon, 25 Sep 2017, Anders Nelson via cctalk
On Sun, Sep 24, 2017 at 8:13 PM, Ed via cctalk
wrote:
> The shipping cost would be obscene!
> Ed#
>
>
> In a message dated 9/24/2017 6:57:29 P.M. US Mountain Standard Time,
> cctalk@classiccmp.org writes:
>
> > On I Sep 23, 2017, at 4:23 PM, Chuck Guzis via cctalk
> wrote:
> > The 7970E comes
On Mon, 25 Sep 2017, Anders Nelson via cctalk wrote:
Hi there, here's an eBay auction for two HP 7970E tape drives that appear
to function:
http://www.ebay.com/itm/VINTAGE-HP-7970e-DUAL-Tape-Drive-Cabinet-Reel-to-Reel-Player-/192204691239
I'm curious if anyone is looking for one of these drive
> On Sep 25, 2017, at 8:37 AM, Noel Chiappa via cctalk
> wrote:
>
>> From: Aaron Jackson
>
>> a PDP-11/73, M8192 CPU, two M8067 RAM, M7195 ... While playing in ODT,
>> the console completely stopped responding.
>> ...
>> The CPU shows 1000, which I believe is fine, and means it's in ODT. The
>
Cool! Aaa, good to know one of them can't be used individually.
What might be involved in using one with a PDP-8/e emulated on SimH? I can
build/program any sort of custom USB device to interface this big stuff,
which I'll open-source of course. But does it need special power/startup
stuff beyond
I may be convinced to split it with you. I could always use another 7970E. I
can't tell from the pictures if one is master and one is slave only
though.. that would be key.
Hi there, here's an eBay auction for two HP 7970E tape drives that appear
to function:
http://www.ebay.com/itm/VINTAGE-HP-7970e-DUAL-Tape-Drive-Cabinet-Reel-to-Reel-Player-/192204691239
I'm curious if anyone is looking for one of these drives. I'm not sure if I
want to pull the trigger on somethi
> From: Aaron Jackson
> a PDP-11/73, M8192 CPU, two M8067 RAM, M7195 ... While playing in ODT,
> the console completely stopped responding.
> ...
> The CPU shows 1000, which I believe is fine, and means it's in ODT. The
> SLU card has . I've had a Google and I believe t
Hi,
I want to get a fixed function term for my mainframe.
Ideally looking for a 3290 and would offer around $1000 as an initial
feeler for a good one.
I'm in Arizona, willing to pay for shipping or I can come collect it.
Please reply direct, I don't watch the list too hard.
Regards,
Kevin
>>On schematic pdf.pg4, what looks to be the video pixel stream SOVSR (from
IC436 on pdf.pg3) feeds an OR gate of IC433, thence inverter in >>IC450,
XOR in IC434, combined with some other stuff in OR gate IC464, resistive
mixing with the composite sync CMSNC, to produce the >>composite video
CMPVD.
On 2017-Sep-25, at 12:42 AM, Adrian Graham via cctalk wrote:
> I’ve been troubleshooting another one of “uncle” Clive Sinclair’s offspring
> (though most folk don’t know his involvement), the Grundy Newbrain. It’s a
> typical early 80s micro with Z80 and 32K RAM made up of 16x 4116 DRAM.
>
> Wha
Hi,
I want to get a fixed function term for my mainframe.
Ideally looking for a 3290 and would offer around $1000 as an initial
feeler for a good one.
I'm in Arizona, willing to pay for shipping or I can come collect it.
Please reply direct, I don't watch the list too hard.
Regards,
Kevin
Hi folks,
I’ve been troubleshooting another one of “uncle” Clive Sinclair’s offspring
(though most folk don’t know his involvement), the Grundy Newbrain. It’s a
typical early 80s micro with Z80 and 32K RAM made up of 16x 4116 DRAM.
What’s uncommon with this particular one is that it works….most
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