Edgar Clin

Militaria Auction (1919-1945)

Rarest High-Power Thermionic Valve of the Kingdom of Italy, probably EIMAC brand, a unique piece in this condition.
Large power/transmission thermionic valve (visible label VT 250 / 250V), equipped with the characteristic paper band of the Royal Tax on Electrical Lighting Equipment and Lamps/Valves, applied precisely during the Kingdom era (1920s–1930s). It was historically used as an active component for amplification and high-frequency radio signal transmission.
Contains a cathode filament, a control grid, and a large central anode plate.

Assessment Factors
Historical value and Fiscal Stamp: The presence of the intact fiscal seal of the Kingdom of Italy adds substantial collectible value compared to ordinary loose valves, making it a display piece or a philatelic/technological collectible.
Type: It is a high-power/transmission tube with a top anode and cooling fins.

Rarissima Valvola Termoionica Di Grande Potenza Regno d' Italia probabilmente marca EIMAC  un pezzo unico in queste condizioni.
Valvola termoionica di potenza/trasmissione di grandi dimensioni (sigla visibile VT 250 / 250V), dotata della caratteristica fascetta di carta del Regia Imposta sugli Organi di Illuminazione Elettrica e sulle Lampade/Valvole, applicata proprio durante l'epoca del Regno d'Italia (anni '20–'30). Era usato in passato come componente attivo per amplificazione e la trasmissione di segnali radio in alta frequenza.
Contiene  un filamento catodo una griglia di controllo ed una grande placca  anodo centrale.
​Fattori di valutazione
​Storicità e Timbro Fiscale: La presenza del sigillo fiscale del Regno d'Italia intatto aggiunge notevole valore collezionistico rispetto alle semplici valvole sfuse, rendendola un pezzo da esposizione o da collezione filatelica/tecnologica.
​Tipologia: È un tubo di grande potenza/trasmissione con anodo superiore e alette di dissipazione.

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Italy - Radio gear

Original/official - Glass, Steel (stainless) - Excellent condition

Italy

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Comes with certificate of authenticity

Original Italian high‑power thermionic valve for amplification and radio transmission, marked VT 250/250V, made of glass and stainless steel, country of origin Italia, in excellent condition, approximately 26 cm tall by 4.5 cm wide, not supplied with a certificate of authenticity.

Italy - Radio gear

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Original Italian high‑power thermionic valve for amplification and radio transmission, marked VT 250/250V, made of glass and stainless steel, country of origin Italia, in excellent condition, approximately 26 cm tall by 4.5 cm wide, not supplied with a certificate of authenticity.

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