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| Identical to |
AM2
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| Similar
Tubes |
C/EM2 (Heater different)
4697 (different connections)
|
| First Series |
1937 Tube leaflet collection E.Erb *Analysis by original leaflets |
| First Source
(s) |
Jul.1937 : Die Sendung 1937 #7
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| Successor Tubes |
EM11
EFM11
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|
| Base |
Europe side contact base P (P8A) (Codex=S)
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| Was used by |
Radio/TV-reception etc. |
| Filament |
-: Indirect /
-: Parallel, (AC/DC) /
If: 0.32 Ampere /
Vf 4 Volts /
|
| Description |
This tube was also sold under the Telestar label in Finland.
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| Tube prices |
10 Tube prices (visible for members
only)
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| Literature |
Taschenbuch zum Röhren-Codex 1948/49 Design = Telefunken
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Courtesy Bureau Belper (De Muiderkring, Bussum), Scan Frank Philipse
Karel De Reus
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Collection JR
Jacob Roschy
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TFK
Wolfgang Holtmann
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Rundfunkröhren Ratheiser 1949
Gerhard Heigl
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| Further Information for |
AM2 |
|
|
AM2 (AM2)
(27.06.2007) Wolfgang Lill
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Clicks: 608 Replies: 1 |
VCL 11 und AM2 im Notempfänger
habe heute einen Empfänger erhalten, der aus meiner Sicht ein Notempfänger sein könnte .
Es ist ein Einkreiser mit VCL11 und als zweite Röhre ist im Metallgehäuse eine AM2
vorhanden. Sollte das so wirklich funktioniert haben?
Wer weiß mehr evtl zum Gerät und zur
Einsatzmöglichkeit der AM2. Der Lautsprecher hat übrigens als Herstellungsdatum den 31.01.1941.
More ...
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AM2 (AM2) Peculiarities
(08.05.2007) Wolfgang Holtmann
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Clicks: 331 Replies: 1 |
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When in 1937 this new Tuning Indicator came on the market, the famous author L. Ratheiser made an in-depth description of its application in modern radio sets. In his book
“Rundfunkröhren, Eigenschaften u. Anwendungen, 1938”,
he made some proposals in order to achieve best results when using the AM2.
With a simple breadboard circuitry, I took some pictures to clarify the sometimes disappointing behaviour.
More ...
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