Antique radios, Old Time Radios
81
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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
Arcturus Radio Tube Co.; Newark, NJ
Cineco (Tube brand)
General Electric Co. (GE); Bridgeport CT, Syracuse NY
Hytron; Salem (MA)
Lafayette Radio & TV Corp; New York (NY)
Liberty, Falcon Tube Company; Chicago, IL
National Union Radio Corp.; Orange (NJ)
Norelco, North American Philips Co. Inc.; Dobbs Ferry and New York, NY
Raytheon Mfg. Co.; Cambridge, MA
RCA (RCA Victor Co. Inc.); New York (NY)
Silvertone (tubes) - see also Sears; Chicago, IL
Triad Television & Mfg. Co.; Pawtucket, RI
Tung-Sol Electric Inc.; Newark (NJ)
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| Developer: |
Westinghouse El. & Mfg. Co. - see also Canadian W. |
| Tube type: |
Half-Wave Vacuum Rectifier Power-supply |
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| Identical to |
81
= UX281
= CV2546
= PH281
= C-281
= 181_Arcturus
= CX381
= RE-2
= T-81
= G81
= 481
= D1/2
= ER81
= PR281
= X281
= NX-281
= RYB281
= NU-81
= TC281
= TX181
= SLX281
= RayX-281
= MX281
= PA281
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| Similar
Tubes |
Other shape (e.g. bulb type):
CG-2935A
Normally replaceable-slightly different:
38181
; FX281
; G-81
; PT-281
; R281
; R81_USA
; V781
; VX2810
Other base:
R10M
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| First Source
(s) |
Dec.1927 : -- Collector info (Sammler)
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Successor Tubes
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SLX281
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line up.
[rmxtube-en]
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