Antique radios, Old Time Radios
39/44
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Country:
United States of America (USA)
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Brand:
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Common type USA tube/semicond.
Adzam (tubes made by MBLE, Belgium)
Canadian Marconi Co. Ltd. (CMC, Esterline), Marconi's Wireless; Montreal, QC
Purotron, Raga AG; Zürich
Arcturus Radio Tube Co.; Newark, NJ
General Electric Co. (GE); Bridgeport CT, Syracuse NY
Hytron; Salem (MA)
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)
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 RF/IF-Stage Controlling (mu) |
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| Identical to |
39/44
= 139
= ER44
= NU-239
= RYB239
= NU-39/44
= VT-49
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| Similar
Tubes |
Normally replaceable-slightly different:
239
; 39
; 44
Other class quality (otherwise equal):
CV1771
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| First Source
(s) |
Jun.1935 : 70 Years of Radiotubes and V.
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| Predecessor Tubes |
44
39
NY-65
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| Base |
UY-Base, 5 Pins (USA, April 1927)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
Vf 6.3 Volts / If 0.3 Ampere / Indirect / Specified voltage AND current AC/DC |
| Tube prices |
1 Tube prices (visible for members
only)
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| Information source |
Essential Characteristics, GE 1973
-- Original-techn. papers.
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39/44: Telefunken Werkstattbuch
Wolfgang Bauer
More ...
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Just Qvigstad
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39/44: 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):11
Collection of
Collection of a member from FIN |
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