¿ªÔÆÌåÓý

Date

Re: Introduction

 

Yeah, I got eventually.

As team lead, I was responsible for code releases. It amazed me how many null pointers existed in the code. Apparently I wasn't the only engineer who didn't understand pointers. For every malloc() there needs to be free().

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)

==============================

On Sep 20, 2024, at 13:43, Harvey White via groups.io <madyn@...> wrote:

?Pointers are relatively easy, if you can get the idea that it's a "look over here" kind of thing. Given that, you can say "look over here and get me what's there" and then "here" when something wants a "look over there". The syntax can be a bit, but the concepts, once understood, are straightforward enough.

Harvey


On 9/20/2024 12:30 PM, Dave Daniel wrote:
I have gvim on my Windows box and use it regularly to edit code (EZNEC, Octave and MatLab files, mostly). At first (1980s) I thought vi was primitive. But over the years I realized that it's portability makes it brilliant. At one time my job was to create a simulation of a large, complex, virtual IBM mainframe disk system. Often, when a user was running his/her code against the simulator and a problem arose it was a question of whether the user code or the simulator code was at fault. Being able to look at the logs and code instantly using vi was, I don't know, like drinking a glass of water. Second nature. The editing was a miniscule effort compared to trying to figure out what code was broken.

When using EMACS, I always had to think about what keys on the keyboard I needed to press to do something. Probably beccause I was never a really good software engineer. I understood electrons, but not C pointers.

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)

==============================

On Sep 20, 2024, at 09:25, n4buq via groups.io <n4buq@...> wrote:
?When I left the world of UNIX (actually "CLIX" for our product), I travelled to the dark side and use notepad, etc., now. I do miss the vi days. So much one can do without ever taking one's hands off of the keyboard.

Barry - N4BUQ

Was, but no longer?

Though the "editor wars" are fun, I actually use both vi and emacs
regularly. I'm going to make a quick edit /etc/resolv.conf, I use vi.
If I'm sitting down for a ten-hour coding session, I use emacs.

-Dave

On 9/20/24 08:26, n4buq wrote:
I was a vi man myself.

Barry - N4BUQ

'Twas a joke. But emacs has to be one of the most widely-ported pieces of
software in history.

-Dave

On September 19, 2024 8:23:47 PM "Harvey White" <madyn@...> wrote:
Never used it, so... wasn't available for what I was doing.

Harvey


On 9/19/2024 7:57 PM, Dave McGuire wrote:
Emacs!

On 9/19/24 19:53, Harvey White wrote:
Unless you like VHDL...... <grin>

Harvey


On 9/19/2024 5:29 PM, Dave Daniel wrote:
Add in SystemVerilog if one is contemplating FPGA/ASIC work.

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick
Renz, STK, ca. 1994)
==============================

On Sep 19, 2024, at 16:03, Roy Thistle via groups.io
<roy.thistle@...> wrote:

?
On Thu, Sep 19, 2024 at 09:11 AM, Frank Mashockie wrote:

I've been considering going into an online master's program for
EE.

If your boss is not paying for it... It's expensive.
2 to 3 years to complete, on average.
Say 50,000USD total cost, on average... and up... for many good US
schools.
Georgia Tech is... about the lowest cost... 10,000USD total cost.
Everyone is different... but IMO... the average person... depending
on which specialty they want... needs to have a strong background in
calculus... as in vector, complex, and differential equations...
linear algebra... numerical methods... statistics.
Computer science skills are required too.
Programming in Python or C
Simulations in software packages like Pspice
HDL like Verilog, or VHDL
Not to mention a strong background in
circuit analysis
devices
probably other stuff I forgot too.

--
Dave McGuire, AK4HZ
New Kensington, PA






--
Dave McGuire, AK4HZ
New Kensington, PA










Re: Introduction

 

On 9/20/24 03:08, Wilko Bulte wrote:
The Metcal units, at least the two Mx500 I have in my shack, have a conventional transformer. No toroid, no SMPSU. The extruded aluminium housing does not shield the stray magnetic field.
Another fun thing is that some 13.5 MHz RF gets leaked by their cables. Can be fun if you wonder were that QRM comes from..
Other than that: brilliant kit those Metcal.
I agree, I've used a couple of SP200s for many years. They are fantastic systems for general-purpose soldering, fine-pitch surface mount, and rework tasks.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA


Re: Introduction

 

Hi Jeff, thanks for reply. The switch is in the correct position.
The display just reads 000020 and blinking. No matter what front panel change is made, the display remains the same.
As i said i havnt delved into it yet, but will do later this evening.
Regards Pete


HP8563E strange behavior

 

Hello all,
?
My HP8563E is showing some peculiar behaviour. It sweeps OK to about 2.9GHz and then sporatically sees some frequencies. Below is an example of a 4-6GHz sweep.
Has anybody have got an idea what is going on here and where to direct my focus?
?
Regards
Saevar
?


Re: Introduction

 

Nope, Borland Pascal, then Delphi.

It is possible to break the linker in Borland Pascal.

Harvey

On 9/20/2024 12:36 PM, Dave Daniel wrote:
Pascal? Did you ever write code in Niklaus Wirth's Modula-2?

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)
==============================

On Sep 20, 2024, at 09:52, Harvey White via groups.io <madyn@...> wrote:

?You're welcome. I can take a design from concept to hardware to pc board to build and then do the same for software. Limitations, of course.

I always encouraged my students to learn both hardware and software, even if they were not going to use it immediately (either!).

I have a program written in C++ (on the PC) that parses an EAGLE board file, then produces an OpenSCAD file (will need custom OpenSCAD parts) to model the board. Makes it useful for designing cases and assemblies as well as getting an idea of what fits where.

So current languages? embedded C, C++ for microprocessors, C++ for the PC, VHDL for FPGAs, OpenSCAD for 3D designs.

I have mostly dropped Delphi, which can be somewhat annoying to code in. Not a bad language (Pascal), but gives me no transportability to the microprocessor realm.

I do mostly digital and power supply design (in support), with a reasonably heavy concentration in microprocessors.

Harvey


On 9/20/2024 9:27 AM, Frank Mashockie wrote:
Thanks Harvey!
I really appreciate the feedback. The software is definitely my weakest point. I think it might be a good idea to start introducing myself to some of it. I've gotten familiar with programming development software to flash MCUs, but that is about it.
I love repair of PCBs. The problem solving and troubleshooting. Learning more about different types of circuits. With that, I think I'd like to get into PCB design. Definitely hardware related. But I guess I won't know for sure until I get into that degree - there's still so much I need/want to learn. I am also interested by power systems and the grid. I probably would have been a lineman if I wasn't afraid heights!
Sorry I don't mean to derail the thread, but I greatly appreciate the feedback!
-Frank





Re: Introduction

 

Pointers are relatively easy, if you can get the idea that it's a "look over here" kind of thing.? Given that, you can say "look over here and get me what's there" and then "here" when something wants a "look over there".? The syntax can be a bit, but the concepts, once understood, are straightforward enough.

Harvey

On 9/20/2024 12:30 PM, Dave Daniel wrote:
I have gvim on my Windows box and use it regularly to edit code (EZNEC, Octave and MatLab files, mostly). At first (1980s) I thought vi was primitive. But over the years I realized that it's portability makes it brilliant. At one time my job was to create a simulation of a large, complex, virtual IBM mainframe disk system. Often, when a user was running his/her code against the simulator and a problem arose it was a question of whether the user code or the simulator code was at fault. Being able to look at the logs and code instantly using vi was, I don't know, like drinking a glass of water. Second nature. The editing was a miniscule effort compared to trying to figure out what code was broken.

When using EMACS, I always had to think about what keys on the keyboard I needed to press to do something. Probably beccause I was never a really good software engineer. I understood electrons, but not C pointers.

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)

==============================

On Sep 20, 2024, at 09:25, n4buq via groups.io <n4buq@...> wrote:

?When I left the world of UNIX (actually "CLIX" for our product), I travelled to the dark side and use notepad, etc., now. I do miss the vi days. So much one can do without ever taking one's hands off of the keyboard.

Barry - N4BUQ

Was, but no longer?

Though the "editor wars" are fun, I actually use both vi and emacs
regularly. I'm going to make a quick edit /etc/resolv.conf, I use vi.
If I'm sitting down for a ten-hour coding session, I use emacs.

-Dave

On 9/20/24 08:26, n4buq wrote:
I was a vi man myself.

Barry - N4BUQ

'Twas a joke. But emacs has to be one of the most widely-ported pieces of
software in history.

-Dave

On September 19, 2024 8:23:47 PM "Harvey White" <madyn@...> wrote:
Never used it, so... wasn't available for what I was doing.

Harvey


On 9/19/2024 7:57 PM, Dave McGuire wrote:
Emacs!

On 9/19/24 19:53, Harvey White wrote:
Unless you like VHDL...... <grin>

Harvey


On 9/19/2024 5:29 PM, Dave Daniel wrote:
Add in SystemVerilog if one is contemplating FPGA/ASIC work.

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick
Renz, STK, ca. 1994)
==============================

On Sep 19, 2024, at 16:03, Roy Thistle via groups.io
<roy.thistle@...> wrote:

?
On Thu, Sep 19, 2024 at 09:11 AM, Frank Mashockie wrote:

I've been considering going into an online master's program for
EE.

If your boss is not paying for it... It's expensive.
2 to 3 years to complete, on average.
Say 50,000USD total cost, on average... and up... for many good US
schools.
Georgia Tech is... about the lowest cost... 10,000USD total cost.
Everyone is different... but IMO... the average person... depending
on which specialty they want... needs to have a strong background in
calculus... as in vector, complex, and differential equations...
linear algebra... numerical methods... statistics.
Computer science skills are required too.
Programming in Python or C
Simulations in software packages like Pspice
HDL like Verilog, or VHDL
Not to mention a strong background in
circuit analysis
devices
probably other stuff I forgot too.

--
Dave McGuire, AK4HZ
New Kensington, PA






--
Dave McGuire, AK4HZ
New Kensington, PA






Re: Introduction

 

Yeah, I completely understand that.

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)

==============================

On Sep 20, 2024, at 12:43, Dave McGuire via groups.io <mcguire@...> wrote:

?On 9/20/24 12:30, Dave Daniel wrote:
I have gvim on my Windows box and use it regularly to edit code (EZNEC, Octave and MatLab files, mostly). At first (1980s) I thought vi was primitive. But over the years I realized that it's portability makes it brilliant. At one time my job was to create a simulation of a large, complex, virtual IBM mainframe disk system. Often, when a user was running his/her code against the simulator and a problem arose it was a question of whether the user code or the simulator code was at fault. Being able to look at the logs and code instantly using vi was, I don't know, like drinking a glass of water. Second nature. The editing was a miniscule effort compared to trying to figure out what code was broken.
When using EMACS, I always had to think about what keys on the keyboard I needed to press to do something. Probably beccause I was never a really good software engineer. I understood electrons, but not C pointers.
Like anything else it becomes second nature with time. I use emacs every day, and I've done so for about forty years, but it's nearly all "muscle memory". I can do almost anything in emacs, but I can't expain how!

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA





Re: Introduction

 

PS - I didn't run into EMACS until I was transferred to STK in CO in 1991.

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)
==============================

On Sep 20, 2024, at 12:09, Dave McGuire via groups.io <mcguire@...> wrote:

?On 9/20/24 11:52, Dave Daniel wrote:
PDP-7s , actually.
Was there an emacs implementation on the PDP-7? Its early history is a bit murky, but I was pretty sure it first existed on a PDP-10 as a set of macros for TECO.

I remember DEC minicomputers (7s, 8s, 10s, 11s, VAX, RSX11M, RSTS/E, RT-11) with great affection. I used to moonlight in the early 1980s with another guy from FIT to setup DEC systems at night. It was great fun. At Dictaphone, we bought two PDP-1132s . Upon delivery, one of them fell headlong off of the delivery truck. Smash. Ever seen a grown software engineer cry? Those were good days.
There was no PDP-11/32, you must mean /34 or /23. But yeah that sounds very sad indeed.

We have multiple of all of the above except for a PDP-7, up and running with every OS that you remember, at LSSM. You should visit.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA





Re: Introduction

 

Sheesh. TECO. You are hurting my brain.

We had PDP-7s at the first engineering company at which I worked in '77. Advanced Electronics Development. We designed and built prototypes of various machines for various companies. It was a weird but apparently effective business model. I myself worked on a hematology analyzer. I remember being paid hourly until my first week claiming over 100 hours, after which I was "granted" a salaried position. Hah!

I remember using vi back then, but not EMACS, but I guess I can't swear that it was on the PDP-7s. We were using the original National PACE 16-bit ¦ÌPs and had a weird lash-up of file to cassette tape to "emulator" memory for debugging; turning off the emulator was a heinous crime, since recovery involved reloading from tape.

LOL - I DO recall playing the original version of Adventure on the PDP-7s.

Dang. That was back when engineering was fun.

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)
==============================

On Sep 20, 2024, at 12:09, Dave McGuire via groups.io <mcguire@...> wrote:

?On 9/20/24 11:52, Dave Daniel wrote:
PDP-7s , actually.
Was there an emacs implementation on the PDP-7? Its early history is a bit murky, but I was pretty sure it first existed on a PDP-10 as a set of macros for TECO.

I remember DEC minicomputers (7s, 8s, 10s, 11s, VAX, RSX11M, RSTS/E, RT-11) with great affection. I used to moonlight in the early 1980s with another guy from FIT to setup DEC systems at night. It was great fun. At Dictaphone, we bought two PDP-1132s . Upon delivery, one of them fell headlong off of the delivery truck. Smash. Ever seen a grown software engineer cry? Those were good days.
There was no PDP-11/32, you must mean /34 or /23. But yeah that sounds very sad indeed.

We have multiple of all of the above except for a PDP-7, up and running with every OS that you remember, at LSSM. You should visit.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA





Re: Introduction

 

On 9/20/24 11:39, Dave_G0WBX via groups.io wrote:
Crikey!
Mentions of Data General Nova computers!
I was wrangling them (Nova 3's and 4's) back in the early 80's where they were used to run GCMS chemical analysis machines assembled where I worked.
Memories of booting the 3's with the front panel switches, and some "fat finger" entered binary code via those console switches to "test" defective I/O boards on extenders, using a simple logic probe (two lights type!)
And some software that played tunes on a Tektronix 4010 terminal!
We have Novas at LSSM as well, 1200s, 3s, and 4s, though they're not (yet) functional. And a Tek 4014 (large CRT version), very nearly functional but still has some issues.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA


Re: Introduction

 

On 9/20/24 12:30, Dave Daniel wrote:
I have gvim on my Windows box and use it regularly to edit code (EZNEC, Octave and MatLab files, mostly). At first (1980s) I thought vi was primitive. But over the years I realized that it's portability makes it brilliant. At one time my job was to create a simulation of a large, complex, virtual IBM mainframe disk system. Often, when a user was running his/her code against the simulator and a problem arose it was a question of whether the user code or the simulator code was at fault. Being able to look at the logs and code instantly using vi was, I don't know, like drinking a glass of water. Second nature. The editing was a miniscule effort compared to trying to figure out what code was broken.
When using EMACS, I always had to think about what keys on the keyboard I needed to press to do something. Probably beccause I was never a really good software engineer. I understood electrons, but not C pointers.
Like anything else it becomes second nature with time. I use emacs every day, and I've done so for about forty years, but it's nearly all "muscle memory". I can do almost anything in emacs, but I can't expain how!

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA


Re: Introduction

 

Pascal? Did you ever write code in Niklaus Wirth's Modula-2?

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)
==============================

On Sep 20, 2024, at 09:52, Harvey White via groups.io <madyn@...> wrote:

?You're welcome. I can take a design from concept to hardware to pc board to build and then do the same for software. Limitations, of course.

I always encouraged my students to learn both hardware and software, even if they were not going to use it immediately (either!).

I have a program written in C++ (on the PC) that parses an EAGLE board file, then produces an OpenSCAD file (will need custom OpenSCAD parts) to model the board. Makes it useful for designing cases and assemblies as well as getting an idea of what fits where.

So current languages? embedded C, C++ for microprocessors, C++ for the PC, VHDL for FPGAs, OpenSCAD for 3D designs.

I have mostly dropped Delphi, which can be somewhat annoying to code in. Not a bad language (Pascal), but gives me no transportability to the microprocessor realm.

I do mostly digital and power supply design (in support), with a reasonably heavy concentration in microprocessors.

Harvey


On 9/20/2024 9:27 AM, Frank Mashockie wrote:
Thanks Harvey!
I really appreciate the feedback. The software is definitely my weakest point. I think it might be a good idea to start introducing myself to some of it. I've gotten familiar with programming development software to flash MCUs, but that is about it.
I love repair of PCBs. The problem solving and troubleshooting. Learning more about different types of circuits. With that, I think I'd like to get into PCB design. Definitely hardware related. But I guess I won't know for sure until I get into that degree - there's still so much I need/want to learn. I am also interested by power systems and the grid. I probably would have been a lineman if I wasn't afraid heights!
Sorry I don't mean to derail the thread, but I greatly appreciate the feedback!
-Frank





Re: Introduction

 

I have gvim on my Windows box and use it regularly to edit code (EZNEC, Octave and MatLab files, mostly). At first (1980s) I thought vi was primitive. But over the years I realized that it's portability makes it brilliant. At one time my job was to create a simulation of a large, complex, virtual IBM mainframe disk system. Often, when a user was running his/her code against the simulator and a problem arose it was a question of whether the user code or the simulator code was at fault. Being able to look at the logs and code instantly using vi was, I don't know, like drinking a glass of water. Second nature. The editing was a miniscule effort compared to trying to figure out what code was broken.

When using EMACS, I always had to think about what keys on the keyboard I needed to press to do something. Probably beccause I was never a really good software engineer. I understood electrons, but not C pointers.

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)

==============================

On Sep 20, 2024, at 09:25, n4buq via groups.io <n4buq@...> wrote:

?When I left the world of UNIX (actually "CLIX" for our product), I travelled to the dark side and use notepad, etc., now. I do miss the vi days. So much one can do without ever taking one's hands off of the keyboard.

Barry - N4BUQ

Was, but no longer?

Though the "editor wars" are fun, I actually use both vi and emacs
regularly. I'm going to make a quick edit /etc/resolv.conf, I use vi.
If I'm sitting down for a ten-hour coding session, I use emacs.

-Dave

On 9/20/24 08:26, n4buq wrote:
I was a vi man myself.

Barry - N4BUQ

'Twas a joke. But emacs has to be one of the most widely-ported pieces of
software in history.

-Dave

On September 19, 2024 8:23:47 PM "Harvey White" <madyn@...> wrote:
Never used it, so... wasn't available for what I was doing.

Harvey


On 9/19/2024 7:57 PM, Dave McGuire wrote:

Emacs!

On 9/19/24 19:53, Harvey White wrote:
Unless you like VHDL...... <grin>

Harvey


On 9/19/2024 5:29 PM, Dave Daniel wrote:
Add in SystemVerilog if one is contemplating FPGA/ASIC work.

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick
Renz, STK, ca. 1994)
==============================

On Sep 19, 2024, at 16:03, Roy Thistle via groups.io
<roy.thistle@...> wrote:

?
On Thu, Sep 19, 2024 at 09:11 AM, Frank Mashockie wrote:

I've been considering going into an online master's program for
EE.

If your boss is not paying for it... It's expensive.
2 to 3 years to complete, on average.
Say 50,000USD total cost, on average... and up... for many good US
schools.
Georgia Tech is... about the lowest cost... 10,000USD total cost.
Everyone is different... but IMO... the average person... depending
on which specialty they want... needs to have a strong background in
calculus... as in vector, complex, and differential equations...
linear algebra... numerical methods... statistics.
Computer science skills are required too.
Programming in Python or C
Simulations in software packages like Pspice
HDL like Verilog, or VHDL
Not to mention a strong background in
circuit analysis
devices
probably other stuff I forgot too.



--
Dave McGuire, AK4HZ
New Kensington, PA








--
Dave McGuire, AK4HZ
New Kensington, PA






Re: HP 141T Power Supply Help Needed

 

CONV mode is the only functional mode, i get blooming at almost any intensity / persistence setting in storage mode unless its so low its basically OFF.? ? ? ??


On Fri, Sep 20, 2024 at 12:21?PM factory via <bobradios11=[email protected]> wrote:
Beware of using the 141T in "Conv" mode, you cannot see if the intensity is set too high & causing damaging the storage mesh. You need to start with it in storage mode and turn intensity down to stop the blooming, then switch to "Conv", if there is any blooming, the intensity is set too high, do not increase the intensity once in "Conv" mode.
?
Attached are the numerous warnings in the 1973 manual and the label that is attached to the cover of my 141T.
?
David


Re: Probe Cables for 16801A Logic Analyser

 

Yes, 16715-61601 is correct.? It's also listed in the 16800 Series Service Guide.
?
The one William linked to on ebay is the right one.? The cables don't have that part number on them, so you have to? usually poke around for "(HP,Agilent) logic analyzer cable" or similar search term.? If you're patient, you can find them for less than that.
?
The 16801A only needs one cable, according to the spec sheet (34 channels).
?
You will also need pods (flying leads or other probe terminations) for it, of the 40-pin variety.
?
-mark
?
?
?
On Fri, Sep 20, 2024 at 11:42 AM, <richard@...> wrote:

The acquisition card is a 32 channel 16912 so I think I need a 16715-61601 cable with a 60 pin connector one end to 2 off 40 pin connectors


Re: HP 141T Power Supply Help Needed

 

Beware of using the 141T in "Conv" mode, you cannot see if the intensity is set too high & causing damaging the storage mesh. You need to start with it in storage mode and turn intensity down to stop the blooming, then switch to "Conv", if there is any blooming, the intensity is set too high, do not increase the intensity once in "Conv" mode.
?
Attached are the numerous warnings in the 1973 manual and the label that is attached to the cover of my 141T.
?
David


Re: Introduction

 

10 MB drives the size of small washing machines, 2MB slide in cartridges that everyone had.? Set 22 (in octal) on the front panel switches to make it boot from the hard drive.

Someone reworked the DG assembler (nova 1200 and later Eclipse) to assemble 6502 (modified instructions, LDA,yes ldax, yes, LDADY (load A indirect through Y register (addr + Y), and LDAXD which was load Adr indexed by X, then do indirect).? That kind of thing.

Did wonders for homebuilt systems.? Program the EPROMS at work over lunch and take them home to debug.

Harvey

On 9/20/2024 11:39 AM, Dave_G0WBX via groups.io wrote:
Crikey!

Mentions of Data General Nova computers!

I was wrangling them (Nova 3's and 4's) back in the early 80's where they were used to run GCMS chemical analysis machines assembled where I worked.

Memories of booting the 3's with the front panel switches, and some "fat finger" entered binary code via those console switches to "test" defective I/O boards on extenders, using a simple logic probe (two lights type!)

And some software that played tunes on a Tektronix 4010 terminal!

Thanks for the surprise burst of memories!

Dave 'KBV.


Re: Introduction

 

pico? Do tell.

DaveD
KC0WJN

Thanks for all the fish.
==============================
All spelling mistakes are the responsibilty of the reader (Rick Renz, STK, ca. 1994)

==============================

On Sep 20, 2024, at 09:07, David Holland via groups.io <david.w.holland@...> wrote:

?You forgot one:

If I want to cause a production outage, I use pico...

(yes, that actually happened somewhere....)

On Fri, Sep 20, 2024 at 8:53?AM Dave McGuire via groups.io
<mcguire@...> wrote:


Was, but no longer?

Though the "editor wars" are fun, I actually use both vi and emacs
regularly. I'm going to make a quick edit /etc/resolv.conf, I use vi.
If I'm sitting down for a ten-hour coding session, I use emacs.

-Dave

On 9/20/24 08:26, n4buq wrote:
I was a vi man myself.

Barry - N4BUQ

'Twas a joke. But emacs has to be one of the most widely-ported pieces of
software in history.

-Dave

On September 19, 2024 8:23:47 PM "Harvey White" <madyn@...> wrote:
Never used it, so... wasn't available for what I was doing.

Harvey


On 9/19/2024 7:57 PM, Dave McGuire wrote:

Emacs!

On 9/19/24 19:53, Harvey White wrote:
Unless you like VHDL...... <grin>

Harvey


On 9/19/2024 5:29 PM, Dave Daniel wrote:
Add in SystemVerilog if one is contemplating FPGA/ASIC work.

DaveD
KC0WJN

Thanks for all the fish.
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All spelling mistakes are the responsibilty of the reader (Rick
Renz, STK, ca. 1994)
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On Sep 19, 2024, at 16:03, Roy Thistle via groups.io
<roy.thistle@...> wrote:

?
On Thu, Sep 19, 2024 at 09:11 AM, Frank Mashockie wrote:

I've been considering going into an online master's program for
EE.

If your boss is not paying for it... It's expensive.
2 to 3 years to complete, on average.
Say 50,000USD total cost, on average... and up... for many good US
schools.
Georgia Tech is... about the lowest cost... 10,000USD total cost.
Everyone is different... but IMO... the average person... depending
on which specialty they want... needs to have a strong background in
calculus... as in vector, complex, and differential equations...
linear algebra... numerical methods... statistics.
Computer science skills are required too.
Programming in Python or C
Simulations in software packages like Pspice
HDL like Verilog, or VHDL
Not to mention a strong background in
circuit analysis
devices
probably other stuff I forgot too.



--
Dave McGuire, AK4HZ
New Kensington, PA








--
Dave McGuire, AK4HZ
New Kensington, PA








Re: Introduction

 

Thank you Jeff! This thread has been fantastic.? Some of it went over my head, but all of you are valuable resources for someone like me trying to dive further into this field.? Getting into electronics and my current job was the first time I felt I truly found a passion.? Something I could make a career out of.? What excites me even more is that I am only at the tip of the iceberg.? There's so much more for me to learn, which is some ways is daunting, but at the same time energizes me.??
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I know this forum is geared specifically towards HP gear, but considering that so many of you have such a wealth of experience and knowledge, is there another forum that would be more acceptable to ask similar questions about transitioning industries (to EE) and gaining more education/experience (also how to market yourself, resume building, etc).? Just more questions a novice like me might have?? I'm sure I'll have more questions as I move forward.
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Thanks!
?
-Frank
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Re: Introduction

 

On 9/20/24 11:52, Dave Daniel wrote:
PDP-7s , actually.
Was there an emacs implementation on the PDP-7? Its early history is a bit murky, but I was pretty sure it first existed on a PDP-10 as a set of macros for TECO.

I remember DEC minicomputers (7s, 8s, 10s, 11s, VAX, RSX11M, RSTS/E, RT-11) with great affection. I used to moonlight in the early 1980s with another guy from FIT to setup DEC systems at night. It was great fun. At Dictaphone, we bought two PDP-1132s . Upon delivery, one of them fell headlong off of the delivery truck. Smash. Ever seen a grown software engineer cry? Those were good days.
There was no PDP-11/32, you must mean /34 or /23. But yeah that sounds very sad indeed.

We have multiple of all of the above except for a PDP-7, up and running with every OS that you remember, at LSSM. You should visit.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA