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Kasper Bergholt, Dänemark - Röhren-Halbleitersammlung

Information - Hilfe
ID = 33776
Photo Kasper Bergholt

Nachfolgend finden Sie einen Teil der Röhren-Halbleiter-Sammlung 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 digital era of Danish BBS culture.

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Auszug aus der Röhren-Halbleitersammlung von Kasper Bergholt. Diese Bilder hat Kasper Bergholt auf die betreffenden Bauteile geladen.

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
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
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
EF tube marked 'EF 95' & 'Philips' + 'Import'. Produced in England by Mullard for PHilips in 1954.

This tube is one of two to be used in a Japanese Yamamoto Sound Craft CA-04 line-level tube preamp - a model which has two of EF95 tubes in the driver stage.
EF95 1953
Mullard Radio Valve Co. Ltd.; GB
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
Red-base European made EZ35 tube - marked 'Produced in Germany' on the opposite side of the photo. Photo angle was chosen to show the dobule-plate construction of this EZ35, which sets it apart from some tubes in the 6X5GT branch of the same rectifier tube design. From own collection. For use in Leben RS30-EQ RIAA.
EZ35
Mullard Radio Valve Co. Ltd.; GB
Tung-Sol KT88 power tube for use in Leben CS-600 tube amplifier.
KT88
Common type Worldwide tube/s... ZZ
Vintage NOS Philips PCC88 tube for use in a DAC.
PCC88 1956
Common type Europe tube/semi... EU
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
5U4GB tube bough lightly used for use in a Sunbuck KSL-M7 preamplifier.
5U4GB
Common type Worldwide tube/s... ZZ
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
5CS3 / 5Ц3С Rectifier tube produced by the Svetlana factory in 1976 accordring to the date mark on the tube.

For use in an Audio Note-inspired preamplifier circuit using one rectifier in the 5CS3 family along with two ECC81 tubes for the gain stage of the amplifier.

Needed one, bought two.
5Ц3С
Common type USSR (SU) tube/s... SU
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
60s 6AK5W production by General Electric marked 6AK5W. For use in Yamamoto Sound Craft CA-04 line-level preamplifier. From own collection.
6AK5W
6CH3 damper tube from own collection for use in Leben CS-600 tube amplifier.
6CH3
Close-up image of a box containing a General Electric 6CJ3 / 6DWB4 tube. Production listed on the tube as February 1976.

The box contains the following serial number:
5960-00-927-2755

Photo to be under Wikimedia license - free use.
'One Eecltron Tube'

GE (General Electric)

6CJ3/6DW4B

Made by G.E. CO. U.S.A.

(A)
33163

Date PKD 2/76.
6CJ3
6CM3 tube produced by General Electric. New Old Stock. For use in Leben tube amplifier. From own collection. Shot with a Nikon D3 & Carl Zeiss lens.
6CM3
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Sammlerseite von Kasper Bergholt als «eigene HP bei RMorg»
Als Mitglied im Radiomuseum.org zeigt Kasper Bergholt Stücke aus seiner Sammlung. Neue Röhren oder Halbleiter legt ein Röhren-Admin an - und korrigiert allfällige Zusätze/Fehler, die Sie ihm melden.

Kasper Bergholt hatte seine Sammlung hier am 18.Apr.2023 eröffnet.
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