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Country:
United States of America (USA)
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Brand:
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Common type USA tube/semicond.
Canadian Marconi Co. Ltd. (CMC, Esterline), Marconi's Wireless; Montreal, QC
Air Castle - tubes
Airline, Super-Airline, Wards (tubes) - see also Montgomery Ward; Chicago, IL
Bond Electric Corp.; Jersey City, NJ
Champion Radio Works; Danvers, Massachusetts
Meteor (tubes), see also WLS, Sears
National Union Radio Corp.; Orange (NJ)
Norelco, North American Philips Co. Inc.; Dobbs Ferry and New York, NY
Raytheon Mfg. Co.; Cambridge, MA
Speed, Cable Radio Tube Corp. / Cable Supply Co.; New York and Brooklyn, NY
Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Triad Television & Mfg. Co.; Pawtucket, RI
Zenith Radio Corp.; Chicago, IL
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| Tube type: |
Triode, vacuum Power/Output |
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| Identical to |
71A
= UX171A
= CX371A
= CX71A
= MX171A
= NX-71A
= 171A
= JX-171A
= TC171A
= UX-71A
= 471A
= T-71A
= SX171A
= RayX-171A
= ER71A
= ER171A
= AC4
= X-171A
= DX-171A
= VX171A
= AX-171A
= SLX171A
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| Similar
Tubes |
Other shape (e.g. bulb type):
M71A
Normally replaceable-slightly different:
38071
; AC-116
; U171
; UX71A_Champon
Other characteristic (electr. data):
71C
Other base and other heater:
SY171C
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| First year |
Nov.1926
Saga of the Vacuum Tube, Tyne page 316: replaced the UX171
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| First Source
(s) |
1927 : -- Collector info (Sammler)
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Successor Tubes
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45
TC171A
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| Base |
UX-Base (4 Pins (2 thick, USA 1924, UX) (Codex=Bo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 5 Volts / If 0.25 Ampere / Direct / Battery = |
| Tube prices |
4 Tube prices (visible for members
only)
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| Information source |
Essential Characteristics, GE 1973
Taschenbuch zum Röhren-Codex 1948/49
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|
71A: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
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Just Qvigstad
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71A: Sylvania Technical Manual
Peter Hoddow
More ...
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Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):345
Collection of
Collection of a member from USA |
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Variants
Version mit blauem Glas.
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Metal coated cylindrical glass version. Complete name: M71A. The letter "M" appears only on the boxes and enclosed paperwork, not on the tubes.
Please klick here: M71A
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