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Sende-Empfangsgerät
SEM 25 (Transceiver System) Vers.-Nr. 5820-12-139-5158
The SEM 25 needs several parts, to make a minimal and usable transceiver.
Without the Transceiver Control Box and the Transceiver Mounting - that
actually contains a number of electronic parts - and their interconnecting
cables the transceiver itself will not be operable.
Sender-Empfänger 25 (Transceiver)
Vers.-Nr. 5820-12-141-1226
It uses three tubes:
V1: 6111; V2: 5639; V3: QQE 03/12
External controls and connectors
Connector 3: Multiple band
cable number 3 to Mounting.
Connector 73: Standard audio for emergency
operation. No loudness control on headphones. When the S/E-Bediengerät
(Transceiver Control Box) is mounted on the transceiver itself, this connector
is not accessible.
Dimensions
Height: 222 mm; Width: 268 mm; Depth: 255 mm; Weight: 15,17
Kg
Construction
Parts
Gehäuse (Housing) SE Vers.-Nr. 5820-12-142-1751
Bausteinträger (Parts carrier) SE Vers.-Nr. 5820-12-142-1752
Tubes:
V1: 6111
V2: 5639
V3: QQE 03/12
N.F. Verstärker (Audio amplifier) Vers.-Nr. 5820-12-142-1761
Mod.-Verst. (Modulation amplifier)Vers.-Nr. 5820-12-142-1760
ZF-Teil (?) SEM 25/35 Vers.-Nr. 5820-12-142-1757
Frequenz-Aufb. SEM 25/35 (Frequency ?) Vers.-Nr. 5820-12-142-1758
Empf.-Stromv. (Receiver power supply) Vers.-Nr. 5820-12-142-1759
S/E 25 Grundplatte (Transceiver Mounting)
This mounting is rather different - it has a number of electronic modules
inside.
Dimensions
Height: 120 mm; Width: 320 mm; Depth: 300 mm; Weight: 11,52
Kg
External controls and connectors
Connector 2: Power in
Connector 3: Multiple band cable to
transceiver
Connector 10: Antenna Tuner Control
Connector 14: Antenna signal from
Antenna Tuner
Connector 16: To Transceiver Control
Box
Connector 17: Unknown
Connector 51: To amplifier
Connector 52: Daisy chains to other
transceiver or receiver
Fuse (SI) 1: 2 A
Fuse (SI) 2: 6,3 A
S/E-Bediengerät (Transceiver Control
Box) Vers.-Nr. 5820-12-141-1255
Normally bolted onto the front of the transceiver, attached by a very short
cable. But that cable is also available in lengths up to ten metres - and can be
even longer under special circumstances, up to twenty metres is mentioned in
some documentation. As the Transceiver Control Box handles all functions of the
transceiver, this means full control can be exercised from a rather long
distance. This trick was for instance used in order to give a tank commander his
own radio, to be controlled fully by him. Still, that transceiver can also be
used through the intercom system.
Dimensions
Height: 174 mm; Width: 228 mm; Depth: 75,5 mm; Weight: 3,00
Kg
External controls and connectors
Connector 16: To Transceiver
Mounting
Connector 42: Audio accessory
Connector 42: Audio accessory
S/E-Haube (Transceiver Cover) Vers.-Nr. 5820-12-141-1256
Cotton duck cover for the transceiver. Slides over the transceiver;
bottom contains elastic shock cord to keep it in place. Front can
be opened with two zippers, has fastener to fix it in opened position.
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