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Kasper Bergholt, Danimarca - Collezione valvole

Informazioni - Aiuto
ID = 33776
Photo Kasper Bergholt

Qui trovi una parte della collezione valvole di Kasper Bergholt.

My name is Kasper Bergholt.

I use, collect, archive and photograph vacuum tubes (valves, in British English). My interests include driver-stage tubes such as the 6CS7, 12AU7A and 12HB7A; the 6CJ3 family of damper tubes; the 6X5GT and 5U3C rectifiers; and the 5881/6L6/6L6G and EL34 families of output tubes. So far, I haven't ventured into 300B or single-ended triode designs.

As the satisfied owner of a Leben CS-600 tube amplifier and a Leben RS-30EQ RIAA phono stage, I'm naturally most interested, for now, in the tubes used in these products.

Besides photographing and documenting tubes on this site, I maintain high-resolution archives for free, non-commercial use on Pbase and Wikipedia. Some of these images are also added to Wikimedia Commons for free use, and I contribute photos for tubes whose listings lack an image. I shoot with vintage Nikon and Zeiss gear.

My other interests include Tai Chi, gastronomy, Pu-erh tea and listening to music. I'm currently especially drawn to Japanese recordings across a variety of artists and genres, most of them of sublime quality, which I play through a Goldring cartridge and the Leben RS-30EQ. I also create photography-based art featuring vacuum tubes, most prominently in my Objects for an Ideal Home series, and I read, write about and curate art.

Recently, I've been working on archiving and describing texts and artifacts from the pre-web era of Danish BBS culture.

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Panoramica della collezione di valvole di Kasper Bergholt. Queste immagini sono state inviate da Kasper Bergholt nella pagina di ciascuna valvola.

5Z3P rectifier tube produced by Chinese Shuguang. New Old Stock for use in Kondo Audio Note KSL-M77 preamplifier clone.
5Z3P
Common type China (PRC) tube... PRC
Vintage Chinese 5Z4P rectifier tube for use in Kondo Audio Note preamplifier clone along with two Telefunken ECC81 tubes.
5Z4P
Common type China (PRC) tube... PRC
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
Chinese 6Z4 rectifier tube - marked Q (military grade), presumably produced by Shuguang. For use in DAC based on one 6Z4 rectifier tube and one 6N11 / ECC88.
6Z4_China
Common type China (PRC) tube... PRC
New Old Stock E80CC tube produced in Germany by Siemens.
E80CC
Common type Europe tube/semi... EU
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
Tube box for a RFT-made EL34 NOS tube branded 'Philips'. 

I use a quad of EL34 in my Leben CS-600 tube amplifier.

Photo: Kasper Bergholt.
EL34 1950
Common type Europe tube/semi... EU
Vintage NOS Philips PCC88 tube for use in a DAC.
PCC88 1956
Common type Europe tube/semi... EU
Chinese CV181 tube.
CV181
Common type Great Britain tu... GB
Unbranded CV574 New Old Stock tube from own collection for use in Leben RS30EQ RIAA.
CV574
Common type Great Britain tu... GB
CV1958 NOS tube from British Haltron - from own collection.
CV1958
Common type Great Britain tu... GB
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
VR-105 tube, marked 'Made in USA', Hytron.
VR105
Common type USA tube/semicond. USA
Jan CHS VT-126B rectificer tube produced in June 1945 for theU.S. Army / U.S. Navy by Sylvania Electric Products in the USA. Photo: Jasper Bergholt. From personal collection and planned use in Leben RS-30EQ RIAA.
VT-126B
Common type USA tube/semicond. USA
U.S. Army
S.U. Navy
VT-174A tube box - the box has the following text:

Jan

6K8K
VT-167A

Vacuum tube

Manufactured by Radio Corp. Of America

Order No. 1508-Phila-44

Accepted Mar. 1944
VT-167A
Common type USA tube/semicond. USA
Texton the box of this VT-171 tube, which is from my own collection.

U.S. Army

Tube: Jan-CHS - 1R: VT-171

S.C. Order No. 17361-Phila-45-12

Produced by: Sylvania Electric Products INC.

Acceptance date: 45/5 (May 1945th).

Photo: Kasper Bergholt

Equipment used: Zeiss Milvus 55mm f/2.0
VT-171
Common type USA tube/semicond. USA
Sylvania 6AG5 New Old Stock tube from own collection.
6AG5
Common type USA tube/semicond. USA
6AK5 tube produced by Mullard in the United Kingdom for Philips. For use in a Yamamoto Sound Craft CA-04 Line level Tube Preamp.
6AK5 1942
Common type USA tube/semicond. USA
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
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
Tube box containing one Sylvania 6K6GT vacuum tube.

Photographed by Kasper Bergholt using a Nikon D3 & Zeiss Milvus lens.
6K6GT
Common type USA tube/semicond. USA
Westinghouse, 6X5GT, two tubes, same serial number, New Old Stock.
6X5GT 1938
Common type USA tube/semicond. USA
New Old Stock 6X5GT/G rectifier tube produced by American Sylvania. Tube writing reads: '6X5GT/G' + 'Sylvania'. From own collection for use in Leben RS-30EQ RIAA.
6X5GT/G
Common type USA tube/semicond. USA
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
12AU7A tube from Japanese Hitachi. Photo: Kasper Bergholt.
12AU7A
Common type USA tube/semicond. USA
Close-up picture of a 884 vacuum tube from American producers RCA (Radio Corporation of America). Photographed with a Nikon D3 with a Zeiss Milvus 50mm lens.
884
Common type USA tube/semicond. USA
Vintage NOS 6189 tube produced July 1970 by American producer General Electric. Photo by: Kasper Bergholt. From own collection.
6189
Common type USA tube/semicond. USA
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Pagina personale presso Radiomuseum di Kasper Bergholt con la propria collezione.
In qualità di iscritto a Radiomuseum.org, Kasper Bergholt ha creato la propria pagina con i pezzi della propria collezione.

Kasper Bergholt ha iniziato a pubblicare la propria collezione dal 18.Apr.2023.
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