Radio Antica e Radio d'epoca
721A
|
|
|
|
|
| Tipo: |
Commutatore trasm./ricez. (TR switch) |
|
| Identico a |
721A
= CV3595
= RK-721A
|
| Valvole
simili |
Other characteristic (electr. data):
721B
; REL64
|
| Prime serie |
01.Apr.1942
- - Manufacturers Literature
|
| Zoccolo |
Top contact with a cap.
|
| Utilizzata per |
Radar |
| Filamento |
|
| Descrizione |
Disc-seal TR/ATR tube, with keep-alive electrode connected to a cap. External cavity at 2.7 to 3.3GHz frequency. Developed to protect solid state diode mixers against RF pulses generated by the magnetron transmitter, this TR switch incorporetes an igniter, the keep-alive electrode, that gives a bias ionization and improves spike protection of the receiver. The copper discs are shaped and supported by a special glass ring, to obtain a low temperature coefficient and a resonance drift with temperature as close as possible to that of the magnetron. The tubes were pretuned before exhaust, placing them in a special cavity and deforming the copper discs with a tool.
Manufactured by WE, Sylvania and Bomac.
Testo in altre lingue
(può variare)
|
| Quotazioni |
2 Quotazioni (visibili solo per gli
associati)
|
| Bibliografia |
Tube Lore (I)
- - Manufacturers Literature BSTJ, The Gas Discharge T/R Switch
|
721A: Manufacturer's Literature
Emilio Ciardiello
Segue ...
|
721A: RR
Reinhard Riek
|
|
|
Numero
totale di modelli di Radiomuseum.org che
utilizzano questa valvola:1
Collezione di
|
|
|
|
[rmxtube-en]
| Conformità dei dati |
Ulteriori informazioni |
|
|
|
