Lot 0061

6 Physical Demonstration Instruments, c. 1920

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6 Physical Demonstration Instruments, c. 1920

Item Details

Description

6 Physical Demonstration Instruments, c. 1920
1) Vacuum tube with cylindrical cathode, height 11 2/5 in. - 2) Canal ray tube according to Goldstein, length 12 ½ in. - 3) Geissler tube with glass bulb, length 13 in. - 4) X-ray tube, with regeneration device in shape of a small active carbon ball, made probably by Rudolf Pressler, Cursdorf, length 10 in. - 5) "Maltese Cross", cathode ray tube with aluminum cross inside the tube, designed to flip down, 9 in. wide. - And: 6) Differential thermoscope according to Looser, made by Leybold, Cologne, height 19 in.

6 physikalische Demonstrationsmodelle, um 1920
1) Vakuumröhre mit zylindrischer Kathode, Höhe 29 cm. - 2) Kanalstrahl-Röhre nach Goldstein, Länge 32 cm. - 3) Geißler-Röhre, mit Glaskugel, Länge 33 cm. - 4) Röntgenröhre, Regulator mit Kugel aus Aktivkohle, Hersteller vermutlich Rudolf Pressler, Cursdorf, Länge 26 cm. - 5) Schattenkreuzröhre, Kathodenstrahlröhre, mit klappbarem Aluminiumkreuz im Glaskörper, Länge 23 cm. - Und: 6) Differential-Thermoskop nach Looser, Hersteller: Leybold, Köln, Höhe 48 cm.

Start Price: EUR 180

Condition

(2-3/-)

Buyer's Premium

23.8%

6 Physical Demonstration Instruments, c. 1920

Name: 6 Physical Demonstration Instruments, c. 1920
SKU: 84231223
Price: 450 EUR
Availability: InStock

Estimate €300 - €500

See Sold Price

Starting Price €180

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Koeln, Germany

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