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REV-251M; Mechanikai (ID = 440243) Commercial Re REV-251M; Mechanikai (ID = 966948) Commercial Re
REV-251M; Mechanikai (ID = 966949) Commercial Re REV-251M; Mechanikai (ID = 966950) Commercial Re
REV-251M; Mechanikai (ID = 966951) Commercial Re
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REV-251M; Mechanikai (ID = 440243) Commercial Re
Mechanikai: REV-251M [Commercial Re] ID = 440243 650x588
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For model REV-251M, Mechanikai Laboratórium (ML); Budapest
Country:  Hungary
Manufacturer / Brand:  Mechanikai Laboratórium (ML); Budapest
Year: 1983 Category: Commercial Receiver (may include amateur bands)
Semiconductors (the count is only for transistors) Semiconductors present.
schematic requested
Main principle Superhet, double/triple conversion; ZF/IF 74000/200 kHz
Wave bands Broadcast, Long Wave and more than two Short Wave bands.
Power type and voltage Alternating Current supply (AC) / 110; 127; 220 Volt
Loudspeaker - For headphones or amp.
Power out
from Model: REV-251M - Mechanikai Laboratórium ML;
Material Metal case
Shape Boatanchor (heavy military or commercial set >20 kg).
Dimensions (WHD) 480 x 380 x 310 mm / 18.9 x 15 x 12.2 inch
Notes Communications receiver covering 200 kHz - 30 MHz, AM, CW, USB/LSB, FM, FSK;
standard IF bandwidths 0.1/0.4/0.7/1.0/1.4/2.0/3.0/4.0/6.0 MHz and +/- 2.75/5.75 kHz (SSB mode). Digital frequency display, resolution 1 Hz.
Variant: REV-251M/H covers 10 kHz - 30 MHz.
Net weight (2.2 lb = 1 kg) 26 kg / 57 lb 4.3 oz (57.269 lb)
Source of data -- Collector info (Sammler)
Literature/Schematics (1) Dékány-Szönyi: A magyar katonai rádiófelderítés története.

Model page created by Martin Bösch. See "Data change" for further contributors.

All listed radios etc. from Mechanikai Laboratórium (ML); Budapest
Here you find 160 models, 136 with images and 6 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.