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Superdual MK205-II (MK205-2)

Superdual MK205-II ; Microphona Mikrofona (ID = 489829) Radio
Superdual MK205-II ; Microphona Mikrofona (ID = 489823) Radio Superdual MK205-II ; Microphona Mikrofona (ID = 489825) Radio
Superdual MK205-II ; Microphona Mikrofona (ID = 489824) Radio Superdual MK205-II ; Microphona Mikrofona (ID = 489826) Radio
Superdual MK205-II ; Microphona Mikrofona (ID = 489827) Radio Superdual MK205-II ; Microphona Mikrofona (ID = 489828) Radio
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Superdual MK205-II ; Microphona Mikrofona (ID = 489823) Radio
Microphona Mikrofona: Superdual MK205-II [Radio] ID = 489823 933x700
Select picture or schematic to display from thumbnails on the right and click for download.
For model Superdual MK205-II (MK205-2), Microphona (Mikrofona), Bratri Knotkove, Praha-Strasnice
Country:  Czechoslovakia
Manufacturer / Brand:  Microphona (Mikrofona), Bratri Knotkove, Praha-Strasnice
alternative name
Telefony Microfona
Year: 1934/1935 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: RENS1234 AB1 E443H 506
Main principle TRF with diode detector; Reflex
Tuned circuits 2 AM circuit(s)
Wave bands Broadcast, Long Wave and Short Wave.
Power type and voltage Alternating Current supply (AC) / 110; 125; 150; 220; 240 Volt
Loudspeaker Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 16 cm = 6.3 inch
Power out 1 W (unknown quality)
from Model: Superdual MK205-II - Microphona Mikrofona, Bratri
Material Wooden case
Shape Tablemodel, high profile (upright - NOT Cathedral nor decorative).
Dimensions (WHD) 370 x 370 x 260 mm / 14.6 x 14.6 x 10.2 inch
Notes 1)Two Tuned Circuits is only for MW and LW, but only one for SW.
2)Wooden case with bakelite front mask.
Net weight (2.2 lb = 1 kg) 12 kg / 26 lb 6.9 oz (26.432 lb)
Literature/Schematics (1) - - Data from my own collection

Model page created by Josef Smitka. See "Data change" for further contributors.

All listed radios etc. from Microphona (Mikrofona), Bratri Knotkove, Praha-Strasnice
Here you find 67 models, 50 with images and 45 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.


Forum contributions about this model
Microphona Mikrofona: Superdual MK205-II
Threads: 1 | Posts: 2
Hits: 1218     Replies: 1
microphona: MK205-II (MK205-2); Superdual
Josef Smitka

Please, corrert two small mistakes:

1) Principle is TRF, normal, non regerative, but with vacuum diode AM detector.

2) 45W is power consumption from net. I don't know LF out power exactly, may be lees then 1W

Ernst Erb

Dear Josef
Please go to the model and scroll down to the link bar and then click "Sugget change".

Thank you.

Microphona Mikrofona: Superdual MK205-II
End of forum contributions about this model