Antique radios, Old Time Radios
1P39
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| Tube type: |
Photocell Detector |
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| Identical to |
1P39
= IP39
= CE29
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| Similar
Tubes |
Normally replaceable-slightly different:
929
; GL929
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| First Source
(s) |
15.Aug.1947 : -- Original-techn. papers.
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| Base |
Octal (Int.Octal, IO) K8A, USA 1935
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| Was used by |
Technology / Measurement |
| Filament |
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| Description |
Blue-sensitive (up to 4000 Angstroms). Side-on type having S-4 response. This type has a maximum anode dark current at 25°C of 0.005 microampere at 250 volts. It makes use of a non-hygroscopic base for increased resistance between anode and photocathode pins under adverse conditions of high humidity.
Text in other
languages (may
differ)
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Dimensions (WHD)
incl. pins / tip |
30 x 78 x mm / 1.18 x 3.07 x inch |
| Information source |
- - Manufacturers Literature RCA Phototubes and Photocells PT-60
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1P39: elektron taschenbuch 1952
Heinz Höger
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Just Qvigstad
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1P39: Manufacturer's Literature
Emilio Ciardiello
More ...
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Collection of
Collection of a member from FIN Collection of a member from D |
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