East German HF and UHF receivers EKB and EUB

The East German type EKB (Empfãnger Kurzwellen Batterie) is a portable/manpack HF receiver. It was developed and manufactured in the GDR and saw service between about 1960 and 1967. The EKB (and EUB) are self contained and have an internal battery pack comprising 1.2V and 7.2V NiCads.

• Frequency coverage 1.5MHz to 22 MHz in six ranges.
• A BFO and RF gain control are provided for reception of CW signals.
• The IF is 900 kHz and 32 kHz.
• The second IF (32kHz) is only used when receiving CW.
• The EKB is a hybrid receiver using sub-miniature battery valves in the RF and IF stages. Transistors are used in the final IF stages, AF stages and HT invertor unit.
• Sensitivity 1 microvolt (A1) and 4 microvolt (A3).
• The receiver is powered by a combined NiCad battery pack.
• The AF output is at headphones level.

East German portable VHF receiver type EUB shown with removable front panel protection cover.

The type EUB (Empfãnger Ultrakurzwellen Batterie) differed slightly from the initial short wave version EKB. It is believed to be used during the same time period as the type EKB receiver.

• Frequency coverage 20MHz to 65 MHz in five ranges.
• Reception of AM and FM R/T only.
• The IF is 10.7 and 3.1 MHz
• The EUB is a hybrid receiver using sub-miniature battery valves in the RF and IF stages. Transistors are used in the AF stages and HT invertor unit.
• Sensitivity 3-8 microvolt.
• The AF output is at headphones level.

How an EKB or EUB receiver is carried in operational use as a portable listening set. Note canvas carrier on top of receiver for stowing accessories. The front panel protection cover (see EUB picture) is fitted on the bottom of the set.