Electromagnetic tuning fork on resonance box - Instrument's card

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Electromagnetic tuning fork on resonance box

Dating

1891

It is a tuning fork mounted on a wooden resonance box (a closed pipe shaped box). This tool, which gives the C3 at 256 vibrations per second, is tool has an electromagnetic device for producting the sound by hitting the prongs of the tuning fork by means of a little rod electromegnetichally moved in the same why with which it usually rings the bell at school.

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Electromagnetic tuning fork on resonance box

Cataloghi	Nº	Voce
Inv. 2016	629	Electromagnetic tuning fork on resonance box Provisional numbering!
Inv. 1925a	350	Diapason elettromagnetico con cassa
Inv. 1870	598	Diapason elettromagnetico con cassa

Section

Acoustics

Window

Conditions

Complete

Working NC

Intact

Large	32.0 cm (12.6 in)
Width	12.0 cm (4.7 in)
Height	30.0 cm (11.8 in)

Materials

Sources

Felice M., Elementi di fisica, Ditta G. B. Paravia e Comp., Torino, 1887/90, Vol. 3, pag. 84, fig. 23
Galileo Officine, Apparecchi per l'insegnamento della fisica, Officine Galileo, Firenze, 1929, pag. 94, fig. 5206
Privat Deschanel A., Trattato elementare di fisica, Fratelli Dumolard, Milano, 1890, pag. 721, fig. 646
Tarquini A., Apparecchi di fisica, Antonio Tarquini, Roma, 1928, pag. 60, fig. 361

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.