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Country:
United States of America (USA)
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Brand:
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Common type USA tube/semicond.
Air Scout - tubes
Airline, Super-Airline, Wards (tubes) - see also Montgomery Ward; Chicago, IL
Apollo Radio Tube Company; New York City, NY, Irvington, NJ
CeCo (tubes), C.E. Mfg. Co. Inc.; Providence, RI
Cornell Electric Manufacturing Corp.; New York
Crusader, Sunlight Lamp Co. / Electric Co.; Newton Falls, OH - Irvington, NJ
Diatron (tubes), Diamond Vacuum Products Co; Chicago, IL
Dynamic Radio Tube Works; Newark, NJ
Everbest Radio Corp.; New York, NY
Globe Electric Company; Pittsburgh, PA
Golden Comet, Gebhart Stores; Dekatur, IL
Hygrade Lamp Co. (Neptron); Salem, Massachusetts
Imperial Radio Corporation; Chicago, IL
Kelly Tube Co.; New York, NY
La Salle Light Company; Chicago, IL
Lafayette Radio & TV Corp; New York (NY)
Legion (Tube brand); (Where ?)
Long Distance Wireless Instrument Company; Boston, MA
Macy's, R.H. Macy & Co.; New York, NY
McCullough, Frederick, S. Co.; Wilkinsburg, later Sales Company; Pittsburg
Paramount Radio Tube Co.; Brooklyn, NY
Philmore Mfg. Co. - Ajax Products Co.; New York, NY
Ravac Co.; Nashua, NH
Real Tone Tube Co.; Pawtucket, RI
Royal Tube Co.; Pawtucket, RI
Shelby Radio Tube Co.; Shelby, OH
Silvertone (tubes) - see also Sears; Chicago, IL
Songbird (brand)
Speed, Cable Radio Tube Corp. / Cable Supply Co.; New York and Brooklyn, NY
Thorola, Winkler-Reichmann Co.; Chicago, IL
Van Dyke Laboratories; Newark, NJ
Van Horne Tube Company; Franklin, OH (see also Musselman)
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| Tube type: |
Triode, vacuum Universal |
|
| Identical to |
227
= 127
= UY227
= ER227
= P227_USA
= SY227
= G-27
= MY227
= AC227
= PA227
= EY227
= Z-27
= T27
= AX227
= C-427
= TS227
= NY-227
= Y227
= T-227
= VY227
= LS227
= SLY227
= GSY227
= C227
= 227-C
= LY227
= 27
= DE-1
|
| Similar
Tubes |
Normally replaceable-slightly different:
227B
; 227S
; CY227
Other class quality (otherwise equal):
228
|
| First year |
1927
Saga of the Vacuum Tube, Tyne
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| Predecessor Tubes |
401_McCullough
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