RM-33 is the last Czechoslovak project of classical HF technology constructed at the Research Institute of Communication Technology in Prague in the mid-1950s. Designed for airborne units.
URL : https://www.valka.cz/CZK-RM-33-KV-radiostanica-t61587#221811
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The range of the radio station was 1.45 to 12.5 MHz continuously tunable receiver and transmitter controlled by crystals. The receiver had a mixed design of 6 tubes in the RF part and 4 transistors in the nf amplifier and filters for A1 + 2 in the converter for the receiver. Practical sensitivity for A1 around 0.5 micovolta. Power supply from two sets of 2 x 1.5 V/10 Ah AgZn batteries. There was also a device to power the receiver from 12 V DC. The transmitter had an exchangeable carousel for 10 crystals, the set contained two carousels, two stages, an oscillator and an output stage, power 5 W for A1 and 1.5 W for A3. The transmitter was powered by a manual dynamo (4.8V -125V + 400V) which was driven by one crank. Range for A1 with rod antenna up to 5 km, with oblique beam up to 400 km. (Theoretical data, in practice twice as much). Antennas: 1.8 m rod and oblique beam for 1.45 to 3.8 MHz 30 m, for 3.8 to 12.5 MHz 15 m Weight: receiver-transmitter 12 kg, source + accessories 13 kg
URL : https://www.valka.cz/CZK-RM-33-KV-radiostanica-t61587#296706
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Reklama
To complete a more detailed picture from my own collection and on the other there is a PZ33 additional amplifier to the RM33, the picture is also from my collection, the colors on the PZ33 are not the original.
URL : https://www.valka.cz/CZK-RM-33-KV-radiostanica-t61587#298648
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RM33 s ručným dynamom. Ton rádiostanice pri takomto napájaní bol strašne "kuňkavý", lebo stlačenie kľúča aj pre trénovaného chlapa predstavovalo veľkú záťaž a z plynulého otáčania kľuky bolo trhané. Kľúčovanie pomocou maličkého kľúča kde nebolo možné poriadne chytiť hmatník bolo tiež ťažké. Inak rádiostanica ako taká bola skutočne dobrá. Pri napájaní zo sieťového zdroja (nebol štandardne vyrábaný, iba rádioamatérmi) je tón pekný a stanica je stále použiteľná.
Zdroj: vlastná zbierka
RM33 s dynamom
Kľúč k RM33
URL : https://www.valka.cz/CZK-RM-33-KV-radiostanica-t61587#344773
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