Komunikacni prijimac Siemens E-310

24. listopadu 2012 v 2:50 | KD8MRK
Zajimave cteni o prijimaci najdete i zde

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General Coverage Communications Receiver
Superhet s dvojim snesovanim
17 elektronek + polovodicu
Made in West Germany 1956 - 1971

Specifications
Rozsahy:14 - 21 / 85 - 175 / 170 - 350 / 340 - 730 / 720 - 1540 kHz
1.5 - 3.1 / 3.1 - 6.3 / 6.0 - 10.2 / 9.7 - 15.2 / 14.7 - 20.2 / 19.7 - 25.2 / 24.7 - 30.2 MHz
Provozy:AM/CW/MCW
Antenni vstup:konektor SO-239 75 Ohmu nesymetricky
Citlivost:CW: 0.3 µV 6 dB S/N, AM: 8 µV (LF-MF), 4 µV (HF) 10 dB S/N
Deleni stupnice:500 Hz
Selektivita (sire pasma):6.2/2.4/1.8 kHz -6 dB. In the 14 - 21 kHz and 85 - 175 kHz ranges 0.8 kHz -6 dB.
Formfactor -6/-60 dB: 1:2.8 at 6.2 kHz bandwidth.
MF:1st IF: 1080-1180 kHz, 2nd IF: 100 kHz
MF Rejection:50-70 dB, typically 70 dB
Image Rejection:40-80 dB
Audio vystup:1.6 W/5000Ohms, 600 Ohms line
Napajeni:110/125/220/250 V AC +/-10% 40-60 Hz, 100 W
Skrin a chassis:Cabinet Version: 550x350x380 mm, 35kg
Rack Version: 520x304x380mm
Doplnky:FSE 2 or Teletron TG 440 for FSK, FSE 7 or Hellfax BS 110 for Fax

Features
Bajonet pro sluchatka
- Reproduktor- vypinac reproduktoru
- Vystup 600 Ohmu
- BFO +/-3 kHz- ANL- AGC/MGC aut. vyrovnavani citlivosti AVC
- AGC 0.1/1sec.
Casovac AVC
zisk MF
- Calibrator 100 kHz- Osvetleni stupnice
- Dve ladici rychlosti
- Jemne ladeni
- Break In Relay- modulova stavba
- Rukojeti do stojanu

Circuit Complement
Tubes + Semiconductors:4x EF 93 (=6 BA 6), 3x EK 90 (=6 BE 6), 4x ECC 82 (=12 AU 7), 2x EAA 91 (=6 AL 5), 1x EL 90 (=6 AQ 5), 1x EM 34 (=6 CD 7), 1x 108 C 1 (=0B 2), 1x 150 C 2 (=0A 2), selenium rectifiers in power supply.
Ladeni:Three ganged capacitors in RF circuits, three ganged capacitors in 1st variable IF-circuits. Continuos tuning by a knob (transmission 10:1 pushed and 160:1 pulled) via 1st oscillator. Alternatively above 1.5 MHz exact setting of 1st oscillator in steps of 100 kHz with calibrator for RF conversion to variable 1st IF (1180 to 1080 kHz), fine tuning via 2nd oscillator (1280 to 1180 kHz) for further conversion to 2nd IF (100 kHz).
Crystal:1x 100 kHz for calibration.
Stupnice:Very big colorful coarse dial, first segment is fine tuning dial 100 kHz.

Comments
This model was designed for the marine market replacing the E 61, E 66a (LF, HF, 1948), E 303, E 305 and E 306 (all HF, 1952-1954). The E 310 was licensed as a class one receiver by Deutsche Bundespost. A standard receiver like competitor Hagenuk UE 12 on German ships. The twelve bands are selected by push-buttons on the left. Called "parrot cage" by the operators, referring to its colorful dial. Quite suitable for SSB reception using the product detector at 1.8 kHz bandwidth in CW mode.

Variants
The E 310b has a C-type antenna jack instead of the SO-239 jack. The E 566 is a very similar model, first with a dark green cabinet and front panel, later often light gray. E566 byl podobny tomuto modelu.

Additional Information

Block diagram of the E 310 (click to enarge). Blokove schema se kliknutim zvetsi.


Top view of the E 310. The RF coil and capacitor deck is on the left hand side behind the push buttons.


Back view of the dial. On the left hand side you see the magic eye (EM 35, it should actually be an EM 34).


The RF coil and capacitor deck.
 

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