Spectroscopic tubes - Instrument's card

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Spectroscopic tubes

Dating

8 March 1940

These four low pressure tubes are filled respectively with carbon dioxide, oxygen, hydrogen and mercury. Connected to an electrostatic machine both suitably equipped and powerful, the gas inside them is taken under the condition of conduction and of emitting light, which can than be analyzed by means of a spectroscope for recognizing the characteristic spectral lines of the substance (spectral analysis).

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Spectroscopic tubes

Cataloghi	Nº	Voce
Inv. 2016	494	Spectroscopic tubes Provisional numbering!
Inv. 1870	957	Tubi spettroscopici

Section

Electrostatics

Window

Non esposto

Conditions

Complete

Working NC

Intact

Diameter	2.0 cm (0.8 in)
Height	22.0 cm (8.7 in)

Materials

Sources

Bernardi G., Apparecchi di fisica, III Edizione, Ditta Prof. Gaetano Bernardi, Tranto, 1931, pag. 75, fig. 7459
Resti E., Catalogo generale di apparecchi per l'insegnamento della fisica, Ditta Emilio Resti di Franco Brambilla, Pubblicazi, Milano, 1930, pag. 61, fig. 294
Tarquini A., Apparecchi di fisica, Antonio Tarquini, Roma, 1928, pag. 78, fig. 473

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.