Canal rays gas discharge tube - Instrument's card

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Canal rays gas discharge tube

Dating

27 giungo 1929

The device is a gas discharge tube for the production of anode rays, also called canal rays. This type of rays were observed for the first time by the German scientist Eugene Goldstein during some tests performed in 1886, in which a gas discharge tube with perforated cathodes was used. Goldstein called these rays Kanalstrahlen (canal rays).

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Canal rays gas discharge tube

Cataloghi	Nº	Voce
Inv. 2016	489	Canal rays gas discharge tube Provisional numbering!
Inv. 1870	933	Tubo a raggi canale di Goldstein

Section

Electrostatics

Window

Conditions

Complete

Working NC

Intact

Large	33.0 cm (13 in)
Width	12.0 cm (4.7 in)
Height	26.0 cm (10.2 in)

Materials

Sources

Bernardi G., Apparecchi di fisica, III Edizione, Ditta Prof. Gaetano Bernardi, Tranto, 1931, pag. 67, fig. 7200
Galileo Officine, Apparecchi per l'insegnamento della fisica, Officine Galileo, Firenze, 1929, pag. 245, fig. 5583
Magrini R., Apparecchi per l'insegnamento della fisica, Officine Galileo, Firenze, 1940, pag. 330, fig. N1244
Martelli V., Apparecchi per l'insegnamento della fisica, Soc. Italiana Apparecchi scientifici, Milano, 1956, pag. 43, fig. 805
Resti E., Catalogo generale di apparecchi per l'insegnamento della fisica, Ditta Emilio Resti di Franco Brambilla, Pubblicazi, Milano, 1930, pag. 104, fig. 504
Tarquini A., Apparecchi di fisica, Antonio Tarquini, Roma, 1928, pag. 154, fig. 30997

The additional indications which integrate the items of the conservation's state have the following meaning: (?) = maybe complete; M = maintenance; P = partial; R = restored; D = used for teaching; NC = not checked; X = impossible to verify.

In order to avoid that instruments' cards without the english description text of the device be directly selected, I added a special filter with which only the complete cards are shown in the menu. Anyhow all the partial english instruments' cards (with instrument's dating, dimensions, state of conservation...) can always be seen even if they haven't the english description text. To read this uncomplete cards is sufficient to click, for example, on an instrument's picture or on the word "View" of the table column called "Card" every time they appear in the other pages of this database.