Copenhagen Art & Photography

Originally designed for use in televisions and radios, 6CS7 tubes generally see little use in audio products. The chief designer and owner of Leben Hi-Fi Stereo Company, Mr. Taku Hyodo, who is often referred as one of the eight best tube amplifier designers in Japan, has a fondness for the 6CS7 type, presumably because of… Continue reading 6CS7 Tubes: Data, Specifications & Usage

The ‘Objects for an Ideal Home’ series is inspired by a 1999 music album — in the electronica genre, as it was labeled in the mid 90s — by that name. ‘Objects for an Ideal Home’ was produced and released by the Danish musician Opiate (Thomas Knak) on record label April Records. In 2009 a… Continue reading ‘Objects for an Ideal Home’

When going through the photos in my blog post on the Leben CS-600 amplifier by Japanese Leben Hi-Fi Stereo Company, I noticed that the damper tube in this photo: was marked 6DN3, which I, funnily enough, hadn’t noticed before. I was of the impression that the CS-600 uses 6CJ3 tubes, which is stated on Leben’s… Continue reading 6CJ3, 6DN3, 6CM3, 6CH3 and 6DW4B tubes for use in tube amplifiers

I’ve been away from the world of visual arts for about 16 years, but I’m back with a refueled interest after buying a vintage camera for a minor macro-photography project. This branched out into shots of architecture and various objects, some of which have been clustered into the ‘Objects for an Ideal Home‘ series. I… Continue reading Copenhagen Photographer ~ Kasper Bergholt

This October (2024), I’ve done some night photography experiments with a Nikon D3 and a Pentax K1. On a  Pentax forum, I saw a couple of photos taken with an old Pentax K10D, which is the last DSLR camera from Pentax built around a CCD (Charge-Coupled Device) sensor. The 10D was released in 2006 following… Continue reading The Pentax K10D in 2025 ~ Photos & Impressions

Kaktus Towers, Kalvebod Brygge, Copenhagen, Denmark. Designed by Bjarke Ingels Group (B.I.G). Two towers at 100 and 80 meters tall respectively. Close to 500 balconies distributed between the floors of the towers explain the ‘Kaktus’ designation of these semi-futuristic buildings. The opening of IKEA’s rooftop terrace has made photos from new angles possible, including ones… Continue reading Kaktus Towers, Copenhagen

The Royal Veterinary and Agricultural University, founded in 1856, was a veterinary and agricultural science university in Copenhagen, Denmark, up till its merger with University of Copenhagen in 2007. Surrounding the buildings, designed by Gottlieb Bindesbøll, are the unique gardens which house more than 6,000 different plants and flowers. Also see: Copenhagen Photographer ~ Bergholt… Continue reading ‘Flora Excursoria Hafniensis’

‘This looks like the end of everything!’, someone remarked at an exhibition. First work from the ‘Time Is Out of Joint’ series, which references the following exclamation by Prince Hamlet in William Shakespeare’s ‘Hamlet’ (in the form of an embodied metaphor): “The time is out of joint: O cursed spite, That ever I was born… Continue reading ‘The Time Is Out of Joint’ ~ Shakespeare, Deridda, T.S. Eliot

Light snowfall over the Garden of the Royal Danish Library (also referred to as ‘The Royal Library Gardens’) is a public garden in Copenhagen, Denmark – designed in 1920 by the architects Jens Peder Andersen and Thorvald Jørgnsen. The Garden of the Royal Danish Library, one of the oldest university libraries in Europe, in Danish:… Continue reading Garden of the Royal Danish Library in Light Snowfall

This blogpost on the Leben CS-600 and the Leben CS-600X tube-based amplifiers started out as a thorough introduction to vintage tubes after buying a Leben CS-600 in 2024. From there, it branched out to cover additional amplifiers from Leben Hi-Fi Stereo Company; from their early models to their latest offerings of tube-based products with a… Continue reading Leben CS-600 ~ An Introduction to Leben Tube Amplifiers