Radio Antica e Radio d'epoca
4X500A
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| Tipo: |
Tetrodo trasmittente, raffr. ad aria a fascio VHF |
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| Identico a |
4X500A
= PL-4X500A
= FU-500F
= QBL4/800
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| Valvole
simili |
Other base and data slightly different:
X404
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| Zoccolo |
SPECIAL TUBEBASE in general
Top contact with a cap.
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| Utilizzata per |
Transmittertube (Radio) |
| Filamento |
Vf 5 Volt / If 13.5 Ampere / Direct |
| Descrizione |
Integral radiator, special 4-pin base with metal ring connected to G2. Glass or ceramic spacer depending upon manufacturers.
- 500 W max plate dissipation with forced air cooling
- 120 MHz max frequency full ratings, up to 250 MHz at reduced ratings.
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| Peso |
765 g / 26.98 oz |
| Bibliografia |
- - Manufacturers Literature
Tube Lore (I)
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4X500A: Valvo,Senderöhren, 1983
Anonimo 15 Collezionista
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4X500A: Valvo,Senderöhren, 1983
Anonimo 15 Collezionista
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| Conformità dei dati |
Ulteriori informazioni |
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