> I would agree that a check for shorts in the output stages can be of interest.
> Possibly disconnect one output stage at a time and see if that make a
> difference.
>
>
I like this idea, I will have to see how best to do that.
Regards
Rob
> -Original Message-
> From: Brent Hilpert
> Sent: 06 April 2020 00:12
> To: r...@jarratt.me.uk; General Discussion: On-Topic and Off-Topic Posts
>
> Subject: Re: VAXmate PSU
>
> On 2020-Apr-05, at 2:53 PM, Rob Jarratt wrote:
> > I have obtained a scope trace as you suggest. R32 is st
One of these days, when I have time, I'll go into one of the more
bizarre COBOL implementations, involving inter-process communication
with "chains" of modules being resident either wholly or in part in one
of several mainframes or in bulk core, with comm links extending
throughout the US.
cf. "Zo
On Mon, Apr 6, 2020 at 4:40 AM Doug Jackson via cctalk
wrote:
>
> for me, the item that usually fails in the WTCP series is the switch at the
> end of the sensor.
>
> I have replaced the sensors each time, because dammit - My 40 year old iron
> sometimes just needs a new cord, or a new heater, or
On 4/5/20 9:12 PM, Boris Gimbarzevsky via cctalk wrote:
The other thing I should bring up is that my wife is after me to get rid
of a lot of my old books. While rumaging through the attic of my shop
found boxes of old computer books which I'd like to keep but have been
told that if I haven'
At 16:12 05-04-20, you wrote:
On 4/5/20 6:28 PM, geneb via cctalk wrote:
On Sun, 5 Apr 2020, Neil Thompson via cctalk wrote:
I'm convinced that Dijksta (and anyone else who came out with similar
comments were full of horseshit. In my opinion, it's the ability to
translate a real world "thing
for me, the item that usually fails in the WTCP series is the switch at the
end of the sensor.
I have replaced the sensors each time, because dammit - My 40 year old iron
sometimes just needs a new cord, or a new heater, or a new tip, or a new
sensor. Best iron I have ever had :-)
Kindest regar
On 4/5/2020 8:46 PM, ben via cctalk wrote:
> On 4/5/2020 6:44 PM, Toby Thain via cctalk wrote:
>
>>> Q: If Bill Gates hadn't written a BASIC interpreter, where would we
>>> be now?
>>>
>>>
>>
>> Sounds like you've never heard of Lisp.
>>
>
> All the old programmers speak with a LISP.
> I view com
It was thus said that the Great Fred Cisin via cctalk once stated:
> >>Edsger Dijksta said, "The use of COBOL cripples the mind; its teaching
> >>should, therefore, be regarded as a criminal offense."
>
> On Sun, 5 Apr 2020, geneb wrote:
> >I'm pretty sure he said that about BASIC, and I'm totall
On 4/5/2020 6:44 PM, Toby Thain via cctalk wrote:
Q: If Bill Gates hadn't written a BASIC interpreter, where would we be now?
Sounds like you've never heard of Lisp.
All the old programmers speak with a LISP.
I view computer science ... teaching is what 'trending now' since
schools promot
On 06/04/2020 00:22, Jon Elson wrote:
On 04/05/2020 03:32 PM, Pete Turnbull via cctalk wrote:
A few hours ago I started looking at three "smart" light switches that
need LEDs replaced, and switched on the soldering iron, and ... nope.
It's a Weller WP80 and it seems the sensor in the heating el
I still believe that the best FIRST exposure to computer programming
should be BASIC. VERY FIRST program should have instant gratification,
without having had to already learn underlying structures, variable
types, how to run a compiler, etc. After creating first program, and a
few more, in a ve
On 2020-04-05 8:40 PM, Fred Cisin via cctalk wrote:
>>> well, close.
>>> His BASIC quote is:
>>> "It is practically impossible to teach good programming to students
>>> that have had a prior exposure to BASIC: as potential programmers
>>> they are mentally mutilated beyond hope of regeneration."
>>
well, close.
His BASIC quote is:
"It is practically impossible to teach good programming to students that
have had a prior exposure to BASIC: as potential programmers they are
mentally mutilated beyond hope of regeneration."
Here is one copy of his 1975 paper, "How Do We Tell Truths That Might
On Sun, 5 Apr 2020, geneb via cctalk wrote:
Yep. You can write horrible code in /any/ language. ;)
. . . and a REAL programmer can write FORTRAN in any language.
On 4/5/20 6:28 PM, Peter Schow via cctalk wrote:
On Sun, Apr 5, 2020 at 4:18 PM Antonio Carlini via cctalk
wrote:
Dijkstra was a computer scientist not a computer programmer. The two are
only tangentially related!
It's funny that you say this because Dijkstra explictly calls himself
a program
On 4/5/20 6:28 PM, geneb via cctalk wrote:
On Sun, 5 Apr 2020, Neil Thompson via cctalk wrote:
I'm convinced that Dijksta (and anyone else who came out with similar
comments were full of horseshit. In my opinion, it's the ability to
translate a real world "thing" into an algorithm that is the
Den sön 5 apr. 2020 kl 22:18 skrev Brent Hilpert via cctalk <
cctalk@classiccmp.org>:
> On 2020-Apr-05, at 6:05 AM, Rob Jarratt via cctalk wrote:
> > I found time to follow Mattis’s suggestion today and I got some
> interesting results.
> >
> > I powered the UC3842 with about 16V from a bench powe
On 4/5/20 4:39 PM, Jay Jaeger via cctalk wrote:
On 4/5/2020 12:47 AM, Chuck Guzis via cctalk wrote:
On 4/4/20 10:15 PM, Fred Cisin via cctalk wrote:
Stories like this abound. Wasn't California DMV running RCA Spectrolas
well into the 80s?
--Chuck
I did write some COBOL on the IBM 1410
On 4/5/2020 4:02 PM, Paul Koning via cctalk wrote:
I'm reminded of a T-shirt company that was around when I was in college, named
"Outer products". They had various math and physics related shirts, for
example with Maxwell's equations (your choice of differential or integral form). Also
one
On 4/5/2020 12:47 AM, Chuck Guzis via cctalk wrote:
> On 4/4/20 10:15 PM, Fred Cisin via cctalk wrote:
>
>
> Stories like this abound. Wasn't California DMV running RCA Spectrolas
> well into the 80s?
>
> --Chuck
>
I kind of doubt that, unless they had a version of IBM's IMS for it --
which I
> On April 5, 2020 at 5:28 PM Peter Schow via cctalk
> wrote:
>
> On Sun, Apr 5, 2020 at 4:18 PM Antonio Carlini via
> cctalk wrote:> Dijkstra was a computer scientist not a
> computer programmer. The two areonly tangentially related!It's funny that you
> say this because Dijkstra explictly c
On 04/05/2020 03:32 PM, Pete Turnbull via cctalk wrote:
A few hours ago I started looking at three "smart" light
switches that need LEDs replaced, and switched on the
soldering iron, and ... nope. It's a Weller WP80 and it
seems the sensor in the heating element has died. I
discovered that on
On 2020-Apr-05, at 2:53 PM, Rob Jarratt wrote:
> I have obtained a scope trace as you suggest. R32 is still lifted so the
> UC3842 is powered by the bench PSU, but I am using the full 240VAC (no
> variac). The channels are:
> 1.Ch1. 555 timer.
> 2.Ch2. D19 Anode
> 3.Ch3. D19 Gate.
> 4.
On Sun, Apr 5, 2020 at 4:18 PM Antonio Carlini via cctalk
wrote:
> Dijkstra was a computer scientist not a computer programmer. The two are
> only tangentially related!
It's funny that you say this because Dijkstra explictly calls himself
a programmer in his 1972 ACM Turing Award Lecture:
"I mar
On Sun, 5 Apr 2020, Neil Thompson via cctalk wrote:
I'm convinced that Dijksta (and anyone else who came out with similar
comments were full of horseshit. In my opinion, it's the ability to
translate a real world "thing" into an algorithm that is the essense of
programming, and anyone who has m
On 05/04/2020 22:27, Neil Thompson via cctalk wrote:
I'm convinced that Dijksta (and anyone else who came out with similar
comments were full of horseshit. In my opinion, it's the ability to
translate a real world "thing" into an algorithm that is the essense of
programming,
Dijkstra was a co
On 4/5/20 2:27 PM, Neil Thompson via cctalk wrote:
> I'm convinced that Dijksta (and anyone else who came out with similar
> comments were full of horseshit. In my opinion, it's the ability to
> translate a real world "thing" into an algorithm that is the essense of
> programming, and anyone who h
On Sun, 5 Apr 2020 at 23:02, Paul Koning via cctalk
wrote:
>
> I'm reminded of a T-shirt company that was around when I was in college,
> named "Outer products". They had various math and physics related shirts,
> for example with Maxwell's equations (your choice of differential or integral
>
> -Original Message-
> From: cctalk On Behalf Of Brent Hilpert
via
> cctalk
> Sent: 05 April 2020 21:18
> To: Rob Jarratt ; General Discussion:
On-Topic
> and Off-Topic Posts
> Subject: Re: VAXmate PSU
>
>
> Switching power supplies are, to coin a phrase, voltage/current-ratio
power
I'm convinced that Dijksta (and anyone else who came out with similar
comments were full of horseshit. In my opinion, it's the ability to
translate a real world "thing" into an algorithm that is the essense of
programming, and anyone who has managed to learn (particularly on their
own, as many of
I'm reminded of a T-shirt company that was around when I was in college, named
"Outer products". They had various math and physics related shirts, for
example with Maxwell's equations (your choice of differential or integral
form). Also one with the first 4 lines of the Odyssey.
For computer
On Sun, 5 Apr 2020, Fred Cisin via cctalk wrote:
On Sun, 5 Apr 2020, geneb wrote:
I'm pretty sure he said that about BASIC, and I'm totally bummed he died
before I could bitch slap him over it. ;)
well, close.
His BASIC quote is:
"It is practically impossible to teach good programming to stud
A few hours ago I started looking at three "smart" light switches that
need LEDs replaced, and switched on the soldering iron, and ... nope.
It's a Weller WP80 and it seems the sensor in the heating element has
died. I discovered that only after resetting and then dismantling the
control unit
Edsger Dijksta said, "The use of COBOL cripples the mind; its teaching
should, therefore, be regarded as a criminal offense."
On Sun, 5 Apr 2020, geneb wrote:
I'm pretty sure he said that about BASIC, and I'm totally bummed he died
before I could bitch slap him over it. ;)
well, close.
His BA
On 2020-Apr-05, at 6:05 AM, Rob Jarratt via cctalk wrote:
> I found time to follow Mattis’s suggestion today and I got some interesting
> results.
>
> I powered the UC3842 with about 16V from a bench power supply. I lifted R32
> so that the transformer would not supply it. I then used an isolati
They were told to update their software.
Now, 20 years later, they are looking for COBOL programmers, to start
the update project.
On Sun, 5 Apr 2020, Stefan Skoglund wrote:
To be fair, in this case updating your software means:
throw out the baby with the water
build a completely new IT infra
There were a lot of differing opinions, some of which held out over
time. Even Fred Brooks had to admit that David Parnas was right about
data encapsulation
On 05/04/2020 15:53, geneb via cctalk wrote:
On Sun, 5 Apr 2020, Fred Cisin via cctalk wrote:
Edsger Dijksta said, "The use of COBOL cr
On Sun, 5 Apr 2020, Fred Cisin via cctalk wrote:
Edsger Dijksta said, "The use of COBOL cripples the mind; its teaching
should, therefore, be regarded as a criminal offense."
I'm pretty sure he said that about BASIC, and I'm totally bummed he died
before I could bitch slap him over it. ;)
g
On Sun, 5 Apr 2020, Noel Chiappa via cctalk wrote:
https://gunkies.org/wiki/PDP-11/05#Keys
I don't recall if there's anough info there to create new keys without an
original to copy. At one point I made a run of copies (after posting a call
here); I suppose I could do so again.
On Sun, 5 Apr
https://www.latestly.com/technology/new-jersey-governor-needs-cobol-programmers-as-covid-19-response-volunteers-to-fix-unemployment-insurance-systems-gets-trolled-on-twitter-for-demanding-outdated-technology-1660018.html
On Sun, 5 Apr 2020, Bill Gunshannon via cctalk wrote:
Yet another article
> On April 5, 2020 at 11:56 AM Chris Zach via cctalk
> wrote:
>
> > What’s really funny, in a sad way, if you read the article above carefully,
> > and you watch the clip.They’re looking for *VOLUNTEERS* to do thbis
> > work!That's problematic. And now that I said I know COBOL81, I could
> >
Not sure about that. I worked for Pershing in Jersey City around that time.
They were (are?) a clearing house for tens of millions of dollars' worth of
stock and bond trades every day. Lots of cobol to be remediated still in 1999.
Oh, and I also worked on decimalization (stocks used to be traded
> On Apr 5, 2020, at 1:27 PM, Lars Brinkhoff via cctalk
> wrote:
>
> Chris Zach wrote:
>> That's problematic. And now that I said I know COBOL81, I could find
>> myself kidnapped by NJ Govt agents and chained to a VT05 terminal.
>> No, no, not 12 lines per screen! HELP
>
> Am I wrong in
On 4/4/2020 10:54 PM, Chuck Guzis via cctalk wrote:
On 4/4/20 9:47 PM, Fred Cisin via cctalk wrote:
On Sat, 4 Apr 2020, Jeffrey Brace via cctalk wrote:
https://josephsteinberg.com/covid-19-response-new-jersey-urgently-needs-cobol-programmers-yes-you-read-that-correctly/
In December 1999, the
On 4/5/20 7:24 AM, Bill Gunshannon via cctalk wrote:
> Yet another article loaded with BS denigrating COBOL.
> The product of a very flawed academic system that decided
> to destroy COBOL because its users refused to accept that
> academics know what's best for the industry.
COBOL was remarkable
Chris Zach wrote:
> That's problematic. And now that I said I know COBOL81, I could find
> myself kidnapped by NJ Govt agents and chained to a VT05 terminal.
> No, no, not 12 lines per screen! HELP
Am I wrong in understanding the VT05 was 20 lines, and the VT50 12
lines?
By the way, I believe
What’s really funny, in a sad way, if you read the article above carefully, and
you watch the clip.
They’re looking for *VOLUNTEERS* to do thbis work!
That's problematic. And now that I said I know COBOL81, I could find
myself kidnapped by NJ Govt agents and chained to a VT05 terminal.
No, n
On 4/5/20 12:22 PM, Zane Healy via cctalk wrote:
On Apr 5, 2020, at 6:41 AM, Stefan Skoglund via cctalk
wrote:
lör 2020-04-04 klockan 21:47 -0700 skrev Fred Cisin via cctalk:
On Sat, 4 Apr 2020, Jeffrey Brace via cctalk wrote:
https://josephsteinberg.com/covid-19-response-new-jersey-urg
On Sun, Apr 5, 2020, 10:26 AM Warner Losh wrote:
>
>
> On Sun, Apr 5, 2020, 10:22 AM Zane Healy via cctalk
> wrote:
>
>>
>>
>> > On Apr 5, 2020, at 6:41 AM, Stefan Skoglund via cctalk <
>> cctalk@classiccmp.org> wrote:
>> >
>> > lör 2020-04-04 klockan 21:47 -0700 skrev Fred Cisin via cctalk:
>>
On Sun, Apr 5, 2020, 10:22 AM Zane Healy via cctalk
wrote:
>
>
> > On Apr 5, 2020, at 6:41 AM, Stefan Skoglund via cctalk <
> cctalk@classiccmp.org> wrote:
> >
> > lör 2020-04-04 klockan 21:47 -0700 skrev Fred Cisin via cctalk:
> >> On Sat, 4 Apr 2020, Jeffrey Brace via cctalk wrote:
> >>>
> >>
>
> On Apr 5, 2020, at 6:41 AM, Stefan Skoglund via cctalk
> wrote:
>
> lör 2020-04-04 klockan 21:47 -0700 skrev Fred Cisin via cctalk:
>> On Sat, 4 Apr 2020, Jeffrey Brace via cctalk wrote:
>>>
>> https://josephsteinberg.com/covid-19-response-new-jersey-urgently-needs-cobol-programmers-yes-yo
> Does anyone have information on having a replacement PDP-11/05 key
> made?
I believe I can make these. I'd like to have a test. May I send you
one?
The key is a Chicago GRB2: cut 215 on an Ilco S1041T. You can use a
1041T and cut it down.
De
Yeah, my contract to a large University fixing all their COBOL stuff
finished in October 1998.
On Sun, 5 Apr 2020 at 16:29, Bill Gunshannon via cctalk <
cctalk@classiccmp.org> wrote:
> On 4/5/20 12:54 AM, Chuck Guzis via cctalk wrote:
> > On 4/4/20 9:47 PM, Fred Cisin via cctalk wrote:
> >> On Sa
I can confirm that about 6 months ago I gave this very information to our
corporate locksmith, and he was able to make a key for me that works. He
thought it such an unusual and worthy request that he did it for free :)
Ian
> On Apr 5, 2020, at 5:39 AM, Noel Chiappa via cctalk
> wrote:
>
>
On 4/5/20 12:54 AM, Chuck Guzis via cctalk wrote:
On 4/4/20 9:47 PM, Fred Cisin via cctalk wrote:
On Sat, 4 Apr 2020, Jeffrey Brace via cctalk wrote:
https://josephsteinberg.com/covid-19-response-new-jersey-urgently-needs-cobol-programmers-yes-you-read-that-correctly/
In December 1999, they
On 4/4/20 11:06 PM, Jeffrey Brace via cctalk wrote:
https://josephsteinberg.com/covid-19-response-new-jersey-urgently-needs-cobol-programmers-yes-you-read-that-correctly/
Yet another article loaded with BS denigrating COBOL.
The product of a very flawed academic system that decided
to destroy
This may have already been said, but I have worked with a little COBOL
within MS .NET for fun, some years ago, just to see it run. I am sure
that's what they're intending the candidates for this job will have had
experience doing. My guess would be it's just as important to be a .NET
guru who can
lör 2020-04-04 klockan 21:47 -0700 skrev Fred Cisin via cctalk:
> On Sat, 4 Apr 2020, Jeffrey Brace via cctalk wrote:
> >
> https://josephsteinberg.com/covid-19-response-new-jersey-urgently-needs-cobol-programmers-yes-you-read-that-correctly/
>
> In December 1999, they were looking for COBOL prog
I found time to follow Mattis’s suggestion today and I got some interesting
results.
I powered the UC3842 with about 16V from a bench power supply. I lifted R32 so
that the transformer would not supply it. I then used an isolating transformer
to power a variac and applied the variac to the A
That's what I did, file one down.
Bill
On Sun, Apr 5, 2020, 7:06 AM Steve Malikoff via cctalk <
cctalk@classiccmp.org> wrote:
> Tom said
> > Does anyone have information on having a replacement PDP-11/05 key made?
> >
> > --tnx
> > --tom
>
>
> There is a bloke in France(?) who can apparently do t
From: Tom Uban
> Does anyone have information on having a replacement PDP-11/05 key made?
Google is your friend; here:
https://gunkies.org/wiki/PDP-11/05#Keys
I don't recall if there's anough info there to create new keys without an
original to copy. At one point I made a run of cop
I'm literally in the process of starting this.
I have a pdp11/05 and the key was snapped off. I brazed it back together.
The barrel is a three wafer unit. It is easily removable by undoing the 4
screws to remove the front panel. Removing the screws holding the micro
switches in place and remov
Tom said
> Does anyone have information on having a replacement PDP-11/05 key made?
>
> --tnx
> --tom
There is a bloke in France(?) who can apparently do them
https://sites.google.com/site/conservatique/keys
I managed to borrow one and my local Mister Minit keycutter had no trouble
matching
the
Does anyone have information on having a replacement PDP-11/05 key made?
--tnx
--tom
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