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Kasper Bergholt, Denmark - Tube collection

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ID = 33776
Photo Kasper Bergholt

Below you find a part of the tube collection Kasper Bergholt.

I'm a user, collector, archiver and photographer of a range of vacuum tubes (valves in British English), for example driver-stage tubes such as the 6CS7, the 12AU7A, the 12HB7A, the 6CJ3 family of damper tube and 6X5GT and 5U3C rectifier tubes, and lastly, the 5881/6L6/6L6G and EL34 family of output tubes. No 300B and single-triode designs for me so far.

Being the satisfied owner of a Leben CS-600 tube amplifier in addition to an RS30-EQ RIAA, tubes used in these products, naturally, for the time being are of most interest to me.

In addition to photographing and arching/documenting tubes on this site, I keep high-resolution archives for free, non-commercial use on Pbase & Wikipedia, some of which are added to Wikimedia for free use too, in addition to filling in the blanks for tubes that don't have an image associated with their listing. I use vintage Nikon & Zeiss gear.

Other hobbies are Tai Chi, gastronomy, Pu-Erh tea, listening to music, for the time being I'm especially interested in Japanese recordings (most of which are of sublime quality) -- through a Goldring cartridge and the Leben RS-30EQ RIAA -- of a variety of artists & genres and photography-based art featuring photos of vacuum tubes, most prominently in my 'Objects for an Ideal Home' series, in addition to reading, writing about and curating art.
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Excerpt from the tube collection of Kasper Bergholt. These images (tube photos) were uploaded to the respective tubes or valves by Kasper Bergholt.

Text on the box of the CV 2659 in the photo is as follors: Valve Electronic CV2659 3D 21A J.S. No. 5960-99-000-2659 A.M. REF. No. 10CV / 2659 2923 Photo: Kasper Bergholt. Nikon D3 + Zeiss Milvus 55mm.
CV2659
Common type USA tube/semicond. USA
6L6WGC tube from the Russian manufacturer Sovtek. Modern production. From own collection (came equipped in my Leben CS-600 amplifier). Text on the tube says: 5881/6L6WGC. Sovtek. Russia. Photo: Kasper Bergholt.
6L6WGC
Russian 6N3C tub - presumably 70s production by either Reflector or Proton. For use in Leben CS-600 tube amplifier.
6П3С
Common type USSR (SU) tube/s... SU
Russian 6П3С-Е tube produced around 1980 by Russian manufacturer 'Reflector'. For use in my Leben CS-600 amplifier. Military grade = Expected life-time more than 5,000 hours.
6П3С-Е
Common type USSR (SU) tube/s... SU
5881 tube from Russian Sovtek
5881
6DWB4 tube box from New Old Stock General Electric tube. Equivalent to 6CJ3. From own collection for use in Leben CS-600 tube amplifier. Being at tube no longer in production I've stashed up quite heavily on these.
6DW4B
Common type USA tube/semicond. USA
Chinese CV181 tube.
CV181
Common type Great Britain tu... GB
CV 455 tube, New Old Stock, presumably produced by Mullard or Brimar in the 60s. For use in Leben RS30-EQ RIAA.
CV455
Common type Worldwide tube/s... ZZ
CV1958 NOS tube from British Haltron - from own collection.
CV1958
Common type Great Britain tu... GB
New Old Stock E80CC tube produced in Germany by Siemens.
E80CC
Common type Europe tube/semi... EU
Siemens E81CC New Old Stock tube. E81CC is the special quality version of the ECC81 / 12AT7.
E81CC
Siemens Halske E88CC vacuum tube.
E88CC 1956
Common type Europe tube/semi... EU
Original box of a Telefunken ECC81 tube. Diamond-marked. Made in Berlin series. For use in my Leben RS30-EQ RIAA.
ECC81 1951
Common type Europe tube/semi... EU
Telefunken ECC82 tube/valve marked B9205626, meaning date of production September 26th of either 1975 or 1965. Dated based on Eric Barbours ‘Tube Collector’, volume II.
ECC82 1951
Common type Europe tube/semi... EU
British made ECC88 Tube printed 'Teonex' for use in Audio Note Kondo M77 preamplifier clone project along with a 5U3C rectifier tube, Svetlana Winged-C.
ECC88
Common type Worldwide tube/s... ZZ
Vintage NOS Philips PCC88 tube for use in a DAC.
PCC88 1956
Common type Europe tube/semi... EU
6CS/ tubes from General Electric marked '6CS7' and serial number 'LB 46' packaging for Italians state radio 'Tassa Radiofonica'. These 6CS's are estimated to be from the 50's or 60's. Small dark plate design. Photo by Kasper Bergholt. From own collection. For use in the driver stage of a Japanese Leben CS-600 amplifier. Photo placed under Wikimedia license and can be used freely when attributed it to its photographer.
6CS7
Common type USA tube/semicond. USA
Vintage Soviet 6Н8С military-grade tube produced by the Foton factory in 1960. For use in a preamplifier with two 6H8C driver tubes fed by a 6X5GT rectifier tube.
6Н8С
Common type USSR (SU) tube/s... SU
Russian 6Н23 / 6N23P preamplifier tube for use in tube-based DAC instead of - or as a supplement - to classic ECC81 / E88CC tubes.
6Н23П
Common type USSR (SU) tube/s... SU
Tube box from a NOS 6J6W vacuum tube. From own collection.
6J6W
Common type Worldwide tube/s... ZZ
Chinese-production 6N8P tube with metal base, presumably produced by Shuaguang. The 6N8P is similar to the 6SN7.
6N8P
Common type China (PRC) tube... PRC
Chinese 6N11 driver tube for an AD1865-based DAC using one 6N11/ECC88/6JD8/6922 tube for the gain amplification and a 6Z4 rectifier tube.
6N11
Common type China (PRC) tube... PRC
New Old Stock 12AT7 tube - one of two symetrically matched for use in Leben RS30-EQ RIAA. From own collection.
12AT7 1947
Common type Worldwide tube/s... ZZ
12AT7EH tube from Electro Harmonix, modern production of the ECC81/12AT7, made in Russia. The 12AT7EH tube is marked 2103 in yellow writing, ant its leg are markedly red. I got this tube from a Leben RS30EQ RIAA, which had it premounted.
12AT7EH
Electro-Harmonix; Long Islan... USA
General Electric 12AT7WA tube. Sorry for the low quality of the print - it's been impossible to get my hands on 12AT7WAs with more visible text. For use in Leben RS-30EQ RIAA.
12AT7WA
Siemens 12AT7WC tube box - NOS & NIB. 12AT7WC (US) = E81CC (EU). From own collection for use in Leben RS30-EQ, which a project of testing different 12AT7 tubes in over time and note differences.
12AT7WC
Common type USA tube/semicond. USA
Modern-day 12AU7 tube from Russian producer Tung Sol.
12AU7 1948
Common type Worldwide tube/s... ZZ
12AU7A tube from Japanese Hitachi. Photo: Kasper Bergholt.
12AU7A
Common type USA tube/semicond. USA
12AU7WA tube from own collection - eqvuivalent to the 6180 (which this 12AU7WA NOS tube is also marked with.
12AU7WA
American 5814A Tube - produced August 1986. Bought for use in Audio Note M1 preamplifier.
5814A
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Tube collector page of valve collector Kasper Bergholt as «own HP at RMorg»
As a member of Radiomuseum.org Kasper Bergholt displays items in his/her tube collection. Tubes are called valves in British oriented countries.
Valve and tube collectors as well as radio collectors are invited to join Radiomuseum.org. Every member can display separate collections of tubes, radios etc.

Kasper Bergholt started his/her tube collection (valve collection) here on 18.Apr.2023. [index-en]

  
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