I live in Vienna in Austria. Vienna - or Wien as it is called in German - is the gorgeous capital of Austria.
Vienna is synonymous with a high quality of life, good food, beer and wine, music and gemütlichkeit.
I have been living in Vienna on-and-off for the past many years and after a stay in New York, I decided to settle down in this magnificent city.
A view from above over the city.
The city hall is located on the ring road and houses so many events all year.
Vienna is also beautiful when the snow falls. In December, most of the inner city is dedicated to so many christmas markets that I've lost count years ago.
The old opera house is a landmark in the inner city. Located at the ring road close to Karlsplatz, a visitor cannot possibly avoid to take notice of this beautiful building.
The Donau Kanal that divides the first and second district, is also used for fun purposes.
In the summertime, small beaches with beach chairs are right at the waterfront.
The "party ships" are open all year, also for Christmas.
Donau Kanal late summer
The Donau Kanal looks like a post card when the lights from the city reflect in the water.
At wintertime, Vienna actually feels like a small town - everything moves slowly, which has its own charm.
Vienna is a very diverse city where each district has its own vibe and charm.
This is from my perspective one of the greatest perks of this city, because you can settle down in a district that fits your mindset.
I live in an area of Vienna called Margareten.
Located next to Naschmarkt, the door to The Balkans and the entire eastern region is wide open - I love it.
I live in a commonplace apartment building - one of several thousand in this city.
As an extra bonus, Chinatown is only a couple of blocks away and if you fancy chinese foods there are tons of diners,
restaurants and supermarkets readily available.
I often buy fish at Naschmarkt. There are more places to go to and they all stock a wide variety of fresh fish.
When I need some cheese, I go to my "Käse-girls", also at Naschmarkt.
I live in a nice penthouse with a view over the rooftops to the small mountains surrounding the city.
The apartment is what is referred to as a "dachboden ausbau".
What this means is that the entire roof is removed from an old house, and a brand new apartment is built on top of the building.
I have completely renovated the apartment which also gives it a personal touch.
I love to cook fish in my kitchen - although we don't have any coastline in Austria, fresh fish is readily available.
The "Junk room"
An empty room in the apartment has been turned into a combo of a laundry room, workshop and storage.
The sun sets over the mountains that surround the city.
With a view over the rooftops to the small mountains surrounding the city, I cannot possibly complain.
Terrace at day
It often gets very hot on the terrace so a parasol is a must. On the
positive side is that I almost live on the terrace when the weather allows it.
Terrace at night
In the hot summer nights I often use the terrace until midnight.
Beer for one
Just what I needed on a hot day!
Dinner for two
Eating outside simply is a must!
In the early summer, all the flowers bloom.
When the Autumn comes, the leaves on many plants turn a beautiful dark red color.
Unfortunately the winter in Vienna can be quite cold with loads of snow.
Thunderstorms are quite frequent in the summertime, and make a beautiful show for anyone to enjoy.
Selfie on the terrace.
The hectic pace in the City with its hustle and bustle is most fascinating - I love to walk thru the first district.
New Year's in Vienna
You can feel the thick ambience of happiness in the city center on New Year's eve.
My home address
Kleine Neugasse 13/1/22
My Skype username is ringdk. Due to spam on Skype,
I'm currently running Skype in a closed contacts mode, so you need to
exchange contact info to call me or to use the chat option.
You can send me a mail by clicking the button. If I do not answer, your mail has been deleted by my somewhat aggressive anti-spam filter.
What I do for a living - the short version is that I develop computer
software - that's it!
To elaborate on the above, I have to go into greater detail: I am the
senior developer of the HELIOS accounting system, which is sold in
Scandinavia. The HELIOS system is aimed at the automotive industry and
is primarily used in repair shops and paint shops. It is often the only
piece of software used for running the entire business, so it has to be
fully featured and support the special needs of this particular industry.
Object Pascal Compiler
The Pascal-P Object Pascal compiler (PPC) is a Windows compatible x86 and AMD64 Object Pascal cross-compiler.
It is completely self contained and generates Windows EXE files for 32-bits and 64-bits Windows.
PPC comes with a Windows compatible IDE with an intuitive and easy to use text interface.
PPC can also output PCode (a java like bytecode) which can be interpreted and thus can be used to add a programming language to an application.
Download PPC 1.98.1113
Simple PCB Layout Editor
The Simple PCB Layout Editor makes it easy to do a prototype board. I developed the program as I found most of the
commercially available PCB packages way too difficult to use, and many of those do not allow for a printout for a homemade PCB.
And the PCB Editor is free.
I like to listen to music - but not the common poor quality sound that comes from a set of cheap in-ears plugged into an iPhone.
I am more into the heavy stuff where electrostatic speakers, class-A monoblocks and turntables are my foundation for a real joyride.
My Hi-Fi projects
A very skilled young artist, Ina Fasching, lives on the same street as me.
I actually met her as I went for a beer in a small "Beisl" across the street.
I did not know what she actually did, but as I am a curious person I asked her: What do you do, when you are not serving me beer?
She told me that she was an art student at the famous art school here in Vienna.
Of course I wanted to see her paintings, and I liked them very much.
(tiefdruck) einzug ins haus
Zwischenspiel am pazifik
Below some screen dumps from my PCB Editor. I plan to write a short manual, but for now intuition will have to do.
Even though digital music has been with us for decades now, I stil prefer the sound of my vinyls.
Yes, I know - vinyls can be hard to deal with, they get dirty and are heavy, but still I love them.
And the feeling of putting a real record on, is second to none.
I like to build Hi-Fi equipment myself.
It gives me the possibility to play with various setups and change things on the fly.
At the same time, I have full control over the component and build quality.
Restoration of a second hand Linn LP12.
My 4 stage tube RIAA/Line preamplifier.
My 5 stage tube RIAA/Line preamplifier.
RCA Power Amplifier.
I am currently building my own version of the somewhat famous RCA power stage from 1970.
This stage is used in more commercially available amplifiers like the NAIM NAP-250.
I have made quite a few modifications to the original design, most importantly I have decoupled the input stage from the
driver/power stage of the amplifier to lower noise and improve stability.
I have never been a huge fan of the NAIM power regulator boards as they just give a higher output impedance than a more simple rectification circuit does.
So I have designed a low-impedance rectification circuit to feed the amplifier boards.
Lohstroh & Otala Power Amplifier - The LOHTALA 80
Jan Lohstroh and Matti Otala did back in the 1970's research on how to make a better sounding solid state power amplifier.
Back then, tube amplifiers were still in common use, and many did not like the "transistor sound" from the new emerging amplifiers.
The Lohstroh and Otala design has been in use ever since by the Norwegian company Electrocompaniet which has build a host of
wonderful sounding amplifiers. The only drawback to most of the Electrocompaniet amplifiers is that the often break. Where a Japanese made receiver goes on and on for
decades, a soldering iron is a must when you run one of those Norwegian amplifiers. Back when Per Abrahamsen was in charge of Electrocompaniet,
the company was quite willing to help with schematics to be able to service a blown amplifier,
but nowadays with the new owner, that has sadly enough changed for the worse, with a quite posh attitude by the company.
That is why I decided to build my own version of an Electrocompaniet amplifier, using the Lohstroh and Otala design, instead of buying a new
one from the company. This way I can remedy the most common faults in the design phase and be able to easily service the amplifier.
As the Lohstroh and Otala design runs hot, and the amplifier uses BJTs, it is of utmost importance to prevent thermal runanway.
Therefor the Vbe multiplier needs to be placed as close as possible to the output and driver stages and definitely on the same heatsink.
I decided to build the amplifier as a semi-dual-mono, where I only share the mains transformers.
By overrating those by a huge margin, the impact of not having ones for each channel is marginal.
My Tube Tester
When dealing with tube based equipment it is equally important to be able to test tubes, and I realized I was in need of a tube tester.
Back in the 50's and 60's, tube testers were commercially available, but nowadays they are an almost extinct species, which left me with two options.
Either I had to buy a vintage tester and give it a major overhaul or build a new one from scratch.
I opted for the latter as I found an excellent design done by Steve Bench. I used his basic design and modified it to my own needs.
This album shows the Step by Step process that I went through when I was building my arcade cabinet.
The cabinet is used for both real arcade games where I have bought the entire electronics (boards, EPROMs etc.) from scrapped
arcade machines, and for MAME. But as it takes time to change boards, I've dumped the EPROMs and use them with MAME instead. Further, I can
avoid the use of the special graphics adapter that is needed when I run the original boards with a modern monitor.
It was somewhat problematic to dump the very old EPROMs (eg. 2708), as they needed more voltages - often negative - than
their modern counterparts that run off a single 5 volts supply.