Antique radios, Old Time Radios
39
|
Country:
United States of America (USA)
|
|
Brand:
|
|
| Tube type: |
Vacuum Pentode RF/IF-Stage Controlling (mu) |
|
| Identical to |
39
= PH39
= PH239
= ER44
= 139
= RYB239
= NU-39/44
= NU-39
= ER239
= T-39
= NU-239
|
| Similar
Tubes |
Other shape (e.g. bulb type):
C239
Normally replaceable-slightly different:
38039
; 39/44
; 439_Sparton
; 44
Heater different:
NY65
|
| First year |
Feb.1932
-- Collector info (Sammler) >100 models, some with dated ads.
|
|
Successor Tubes
|
39/44
|
|
|
|
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