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K5A Wechselstrom

K5A; Tefag; Telephon (ID = 1158232) Radio K5A; Tefag; Telephon (ID = 1158235) Radio
K5A; Tefag; Telephon (ID = 1158239) Radio
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K5A; Tefag; Telephon (ID = 1158232) Radio
Tefag; Telephon: K5A [Radio] ID = 1158232 933x700
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For model K5A Wechselstrom, Tefag; Telephon Aktiengesellschaft vorm. J. Berliner
Country:  Germany
Manufacturer / Brand:  Tefag; Telephon Aktiengesellschaft vorm. J. Berliner
alternative name
Telephon-Fabrik, AG vorm. J. Berliner
Year: 1943 ?? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: UCH11 UBF11 ECL11 UY11
Main principle Superheterodyne (common); ZF/IF 468 kHz
Tuned circuits 6 AM circuit(s)
Wave bands Broadcast and Short Wave (SW).
Power type and voltage Alternating Current supply (AC) / 125 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
Power out
from Model: K5A [Wechselstrom] - Tefag; Telephon
Material Bakelite case
Shape Tablemodel, Mantel/Midget/Compact up to 14" width, but not a Portable (See power data. Sometimes with handle but for mains only).
Dimensions (WHD) 280 x 190 x 150 mm / 11 x 7.5 x 5.9 inch
Notes Variante für Wechselstromspeisung 125 V (Spanien). Vermutlich Kleinserie wegen kriegsbedingter Nichtverfügbarkeit der UCL11 umgerüstet auf ECL11. Zusätzlicher Autotrafo für die 6,3 V Heizspannung der ECL11 sowie zur Transformation der 125 V Netzspannung auf 220 V für die Anodenspannung. Die übrigen (U...) Röhren laufen in Serie auf 125 V.
Siehe auch Tefag K5A für 220 V Allstrom-Betrieb.

Variant adapted for 125 V (Spain). UCL11 tube substituted by ECL11, obviously due to material shortage (UCL11) during WW2.
Transformer added to standard model. Primary acts as autotransformer to convert from 125V to 220V. Secondary gives 6.3V for ECL11 filament. Rest of filaments connected in series to 125V.
See also the AC/DC model Tefag K5A.
Net weight (2.2 lb = 1 kg) 3.5 kg / 7 lb 11.3 oz (7.709 lb)

Model page created by Jordi Duran. See "Data change" for further contributors.

All listed radios etc. from Tefag; Telephon Aktiengesellschaft vorm. J. Berliner
Here you find 255 models, 172 with images and 107 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.