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Country:
United States of America (USA)
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Brand:
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Common type USA tube/semicond.
Amalgamated Wireless Valve Co. Ltd. (AWV); Sydney, NSW
Genalex, BGE (brand), British General Electric Co. Pty Ltd.; Sydney, NSW.
Osram (tubes/valves) - see British General Electrics; Sydney
Philips Australia
Adzam (tubes made by MBLE, Belgium)
Canadian Westinghouse, Hamilton
Visseaux / Télévisso; Lyon / Paris
Ken-Rad, The Kentucky Radio Corporation; Owensboro, KY
National Union Radio Corp.; Orange (NJ)
Philco, Philadelphia Stg. Batt. Co.; USA
Raytheon Mfg. Co.; Cambridge, MA
RCA (RCA Victor Co. Inc.); New York (NY)
Real Tone Tube Co.; Pawtucket, RI
Sylvania (Hygrade, GTE, Nilco); Emporium (PA)
Triad Television & Mfg. Co.; Pawtucket, RI
Tung-Sol Electric Inc.; Newark (NJ)
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| Tube type: |
Vacuum Pentode Power/Output |
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| Identical to |
2A5
= UZ-2A5
= UZ2A5_Code9
= CV1834
= PH2A5
= PZH
= VT158_GPO
= CV1707
= NU-2A5
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| Similar
Tubes |
Other shape (e.g. bulb type):
M2A5
Normally replaceable-slightly different:
2A5E
; 38215
; 95
Heater different:
42
Other base and other heater:
6F6G
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| First year |
1932
-- Collector info (Sammler)
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| First Source
(s) |
Jun.1933 : -- Collector info (Sammler)
1932 : Communications Receivers
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| Predecessor Tubes |
47
PZ
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Successor Tubes
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6F6
6F6G
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| Base |
6-Pin-Base U6A, old, USA (Codex=Kdo)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 2.5 Volts / If 1.75 Ampere / Indirect / Parallel, (AC/DC) |
| Description |
The RME 9 Comms receiver is from 1932 and makes use of the 2A5. see Moore, Comm's. Receivers.
* RMA/JEDEC register record available by courtesy of TCA* - This tube was already listed by several manufacturers when RMA started its standardization in 1934. In order to characterize popular receiving types, manufacturers were asked to supply average characteristics as measured on production lots. Here are the filled answer forms supplied by Radio Valve Co., Raytheon, Sparton, Triad, Tung Sol, Ken Rad, Hytron and Arcturus. Full record is downloadable here.
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Dimensions (WHD)
incl. pins / tip |
x 120 x 45 mm / x 4.72 x 1.77 inch |
| Weight |
49 g / 1.73 oz |
| Tube prices |
3 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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2A5: Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus †
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2A5: P.ST
Peter Steffen
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2A5: Telefunken Werkstattbuch
Wolfgang Bauer
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2A5: Cunningham Radiotron Manual
Peter Hoddow
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from Just Qvigstad
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