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Day 3 – Laxvik – Halmstad – Falkenberg – Björkäng

The previous night was rainy/windy. Luckily, as I woke up, the rain stopped and it was just windy. I packed my stuff and was en route a bit late at 9:30 am.

15 km till Halmstad
Sculpture in Halmstad

The rest of the day I was confronted with heavy headwinds. My average speed dropped from 16 km/h down to 13 km/h. Sounds not much but it’s significant. It usually means “double punishment”: cycle harder with less speed. I’ve visited Halmstad with quite some delay and cycled on towards Falkenberg. It was very exhausting but the weather got much better towards afternoon. The winds calmed down by evening hours around 6-7pm.

An unfinished “bridge” in Falkenberg

I couldn’t reach my daily goal Varberg, however, I camped in Björkäng, about 15 km away from Varberg. By luck, I met a wonderful traveller couple from Germany at the campsite in Björkäng who invited me for a coffee and travel-talk. They have been travelling in Sweden and Norway for the past 6 weeks by camping van and told me a lot about the special places they visited and I surely want to visit in the next couple of years. That was worth it… great experience!

A sun’s halo (rainbow patterns) spotted near Morup

Tomorrow I’ll continue my route to Varberg and head to Grimeton before finishing the Kattegatleden in Göteborg. Will try to keep 100 km/day as long as possible…

99.3 km, 7h30m, 13.3 km/h

Day 3 – Laxvik – Halmstad – Falkenberg – Björkäng Read More »

Day 2 – Brunnby – Ängelholm – Torekov – Båstad – Laxvik

Very nice cycling day. The weather was perfect for cycling. First 30 km were very easy to master, however I started slacking and lost some time with shopping and breaks. The landscapes were beautiful and very pleasing.

Ängelholm center

My daily goal was to reach Halmstad, however, the weather report showed some incoming rain. I decided to camp in Laxvik just before the rain set in. That seemed to be the right decision because shortly after setting up the tent, it started raining.

Taking a break and drying wet clothes

There was lot of rain with changing duration and intensity, followed by strong winds. I was very tired and just slept without caring much about the noise…

Camping site at Laxvik

108 km, 6h52m, 15.7 km/h

Day 2 – Brunnby – Ängelholm – Torekov – Båstad – Laxvik Read More »

Day 1 – Malmö – Landskrona – Helsingborg – Brunnby

My bike tour started today on Wednesday, 2025-06-25. I woke up early in the morning at 5:30, packed my stuff and  had some great breakfast. The Copenhagen Central Station was some 300 meters away. The ticket price from Copenhagen to Malmö was a bit cheaper (99 DKK for ticket and 50 DKK for bike ticket, ca. 20 EUR total) than the other way around.

Crossing the Øresund Bridge by train

The weather was mixed and windy at 18 °C. The first half of the day was windy and raining. Later during the afternoon, the weather got much better – lots of sunshine and no clouds. It was windy along the coastline, less windy towards main land.

Sydkustleden – Cycle Route No. 3

From Malmö C, I followed the route No. 3 – Sydkustleden to Helsingborg. I have visited cities of Landskrona and Helsingborg. In Helsingborg, the route was continued on Kattegatleden Cycle Route No. 1 to Göteborg.

Flying saucer in Landskrona
Cannons and WW2 bunker near the Citadel in Landskrona
Here we are in Helsingborg at the start of Kattegatleden Route No. 1 to Gothenburg
Helsingborg

I kept cycling until late in the evening until tiredness set in and I had to find a place to rest. After looking for a camp spot, I found a shelter few kilometers behind Brunnby where I slept over night. Great place, it was quiet and I really enjoyed it.

Shelter near Brunnby

Total distance: 123.7 km, Ride time: 8h40m, average: 14.3 km/h

Day 1 – Malmö – Landskrona – Helsingborg – Brunnby Read More »

Copenhagen

Staying today at Copenhagen to visit some places and to recharge batteries, resupply missing stuff etc.

I visited the Danish National Museum and spent there few hours and participated in a guided tour. It was very interesting learning about Viking and Danish culture, ranging from the 10th century till modern times. I liked the museum very much, well spent money.

The Danish National Museum

It’s funny how Vikings and – much later – the King of Denmark were “victims” 😅 of Metrology when it comes down to trade and economy. Typical trade goods back in those days were precious metals such as gold and silver or expensive spices (pepper, salt etc.). I couldn’t resist making some pictures of scales and their “weight standards”.

An ancient scales and some weight standards (small cubes/dices in front)
Length, volume and weight “standards”
Modern-day test equipment – an amperemeter from the early 20th century

After diving into history for 4.5 hours, I was finally looking for a fish restaurant but couldn’t find one which isn’t too expensive. I found one but prices for a menu were in the order of 40 EUR without drinks. Instead I decided to go to a grillhouse. The dish was very tasty but also pricy – almost 30 RUR for a grill menu. Usually it’s 20-ish EUR but eating in a shopping street proved to be very pricy.

BBQ at grillhouse

The weather didn’t recover much, temperatures were around 18 °C today with short periods of rain. I decided to return to the hostel and start preparations for the bike tour, which starts tomorrow. Unfortunatelly one of my roommates didn’t sound very healthy – he was coughing and stayed in the room presumeably the whole day. I hope he doesn’t give me a flu…

Not my bike, but it has much with the modern-day bikes in common…

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Malmö/Copenhagen

Had a good night, slept very well. I missed the Øresund Bridge transit just by few minutes but was able to capture some awesome views shortly after the passage.

Just passed the Øresund Bridge

Breakfast was fine and going off-board went very smoothly – at least for me. Thanks again to the Finnlines crew!

Waiting for the sign to leave the ferry

The weather was very good (20 °C) and I checked out the central station, the old town and the promenade of Malmö. After few hours of walking and weather change to wind/rain, I moved on to the Malmö central station and grabbed a train ticket towards Copenhagen. It cost me 220ish DKK which is around 30 EUR (bike ticket included).

City Hall of Malmö
Kungsparken Malmö
Malmöhus Museum

I arrived ~35 min later in Copenhagen. The view was spectacular when crossing the Øresund Bridge. Unfortunatelly, the train was full, couldn’t take any good photos. I checked in to my hostel where I will stay for the following two nights. The bike tour starts on Wednesday!

Arrival at Copenhagen Central Station
Milestone in Copenhagen
The Danish Stock Exchange being rebuilt after its destruction by fire in 2024

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2025 Cycling tour in Scandinavian countries

This time I’m trying something new. I’m currently on vacation and I’m about on my way to ride my bike from Copenhagen, Denmark through Sweden to Bergen, Norway. I will try to write a travel blog on a daily basis via my smartphone through the next couple of weeks.

Basically, during past couple of days, I’ve been busy packing my stuff to travel via bike and tent. It took me three days to prepare everything (clean clothes and bike, repair equipment etc.). Packed the bags by sunday morning and hurried to the central train station.

vsf Fahrradmanufaktur TX-1200 packed

Catched the train on time and also arrived in Uelzen on time. However, the connection to Hamburg had a delay of approx. 40 min. Further delays forced me to change trains in Lüneburg in order to get to the city of Lübeck-Travemünde. I arrived about 1 hour late due to train delays but still had 3 hours left.

Arrival in Travemünde

I killed the time at the beach before moving to the harbor. The beach of Travemünde was crowded very well, temperature was around 27 °C.

Beach of Travemünde

At around 18:30h I moved to the port towards Skandinavienkiel. The check-in at the port was very easy and I met some nice cyclists along the way. We went together on board and had an exclusive place for our bikes in front of the ship (bow side).

Our bikes at the car deck

Departure was on time at 22h and the sights from the Observation/Sun Deck were amazing – the promenade, the beach and some lightning on the horizon!

Leaving Travemünde

The Finnlines personnel were friendly and very supportive, thanks alot to the crew!After having a dinner, I went to the cabin and passed out quickly due to a dense packed travel day. Awesome!

Diabetes-dinner 😅
My cabin

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Happy (late) new year 2025!

I’m a bit out of phase (2 weeks late) but it’s cold and dark outside, maybe I’ll write some blog articles soon(tm) 😅

There will be interesting stuff in 2025, namely electrometers, voltage references, more cycling adventures, ham radio stuff and… screws! Lots of screws…

Just a fistful of screws. I wonder where they belong …

Have a nice and wonderful year y’all!

73 de Denis, DH7DN

Happy (late) new year 2025! Read More »

Tektronix 7104 – 1 GHz analog oscilloscope

I’m really happy of being a new owner of a Tektronix 7104 oscilloscope – one of the fastest analog oscilloscopes made by man.

Tektronix 7104
Tektronix 7104, 1 GHz analog oscilloscope
Last time I saw one of those on eBay, I was hesitating to buy it and it went away for dirt cheap. Anyways, I didn’t want to miss a chance this time. The unit is working and in a very good condition. The horizontal and vertical plug-ins delivered with the scope are meant for the full bandwidth of 1 GHz.

The Microchannel Plate CRT display is still in a good shape – no burn-ins except the typical wear-out areas (horizontal trace, annotation areas).

Measured rise time of Tektronix 7104 with Leo Bodnar pulse generator on a 7A29 single channel vertical amplifier plugin: approx. 300 ps
Sine wave at 1.0 GHz, approx. -13 dBm into 50 Ohm

Bandwidth test with Leo Bodnar pulser on one of the 7A29 plug-ins gave me a rise time of 300 ps with an estimated bandwidth of approx. 1.16 GHz. This is my fastest oscilloscope now. I’ll check the innards in a couple of weeks.

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Salvaging, desoldering practice

I’m still in the process of building my electronics lab. After two years of acquiring test equipment, it will still take some time to get it to a satisfactory level. The measurement capabilities have been extended to electrical quantities such as voltage, current, resistance, impedance, capacitance, inductance and frequency. Unfortunately, I’m reluctant to buy new general-purpose parts like BNC connectors or electrolyte capacitors. Luckily I was able to find some useful components in the dumpster, which is currently my main source of electronics components. The components are still useful and of value. Those were doomed of being thrown away.

I have few days off right now and some spare time to desolder and sort the components. They will be very useful for future my projects! It’s been a while since I’ve been (de)soldering and this takes forever. It’s hard to forget how to solder but if one doesn’t practice, it takes some time to get the muscle memory back.

Everything one needs for desoldering action: JBC CD-2SE soldering station, Keysight U1733C LCR Meter, soldering pump and some pincers and pliers.
Few of the desoldered components which have been saved from the dumpster/landslide.
More work: There is certainly something meditative about desoldering and sorting electronic parts… 😉

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More Tektronix Oscilloscopes in 2022

About 2 weeks ago I traveled through the country in order to pick up – as one may guess – another Tektronix oscilloscope! Who would have thought? This unit was very special: a Tek 7904A with many high-speed plugins such as 7A19, 7A24, 7B92A… just to name a few.

The seller was very kind and showed me more stuff laying around in the basement. There were some vintage instruments on a dusty shelf but the Tektronix R556 dual-beam oscilloscopes really caught my eye. We discussed about the future of some of the test equipment and we agreed to “dispose” it the “proper” way: load it in my car and drive it to a place where it will be treated with love and respect… my apartment! 😉

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Those are beefy and heavy… boat anchors… err oscilloscopes 😉

I’m a TEA with somewhat heavy GAS, that’s for sure. But I have never possessed anything like a Tektronix 556 dual beam oscilloscope. Two of them. It was very difficult to carry them around because of its mass of approx. 30 kg per unit. 

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Nevertheless, the units made it to my home without problem. Initial visual inspection showed a somewhat pristine condition! Besides dust, all vacuum tubes were present and all knobs/plugins/parts were without any visible damage.

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Side view of Tektronix R556 Dual-Beam oscilloscope. Amazing piece of late 1960’s/early 1970’s technology!

I was lucky to get two fitting bezels from Matt@Wellenkino and a proper AC power cord from eBay (type NEMA 5-15R). I’ll have to wait with power-up until order has been restored in my apartment. 😉

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The back side of the Tek R556 oscilloscope. It has a standard NEMA 5-15 AC power plug.
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Receptacle of a NEMA 5-15R cable.
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Waiting for power-up! I’ll have to check the unit first and replace old and leaky electrolytic capacitors before powering this unit up.

 

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Quick Test

Just writing some text and uploading a picture for testing purposes 😉

10 MHz sine wave. Nothing special.

Unfortunately the quality of this picture isn’t good.

Maybe this is better?

…aaaand hitting that PUBLISH button! Yay!

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