Eddystone 640

Desktop Shortwave receiver

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The Eddystone 640 was designed primarily for amateur communication purposes and covers 1.7-30 MHz without gaps. An external S-meter can be attached to the rear.

Frequency range

RX-range
1.7-4.5 / 4.5-12.6 / 12.6-32 MHz
TX-range
-
HAM bands
?
Stability
?
Tuning steps
?
Filters
Optional 400 Hz crystal filter

Receiver

Modulations
AM   CW  
Sensitivity
≤ 2 µV
Selectivity
10 kHz @ -25 dB without crystal filter
400 Hz with crystal filter
Receiver system
Double conversion superheterodyne
IF-frequencies
1st: 1600 kHz
2nd: 450 kz
Image rejection
45 / 60 / 90 dB
Audio output
3 W

Transmitter

Modulations
-
RF-Output
?

Connections

Antenna
Clamps / screws
Impedance
400Ω

Electrical

Power requirements
Mains (110 / 220 V AC)
Current drain RX
65 W
TX
-

Physical

Dimensions (w×h×d)
425 × 222 × 254 mm (16.73 × 8.74 × 10.00 in)
Weight
14.97 kg (33.0 lbs)
Form factor
Base Station
Manufactured
Between 1947 and 194x in Great Britain
MPN
EDDYSTONE-000640

Other features

Memories
?
Usage
Amateur / Ham radio operators
Features + options
BFO
Noise limiter
AVC
Standby switch
Accessories
?

Manuals, diagrams and brochures

Eddystone 640 Service Manual submitted by RigReference
Eddystone 640 Redrawn Circuits submitted by RigReference
 
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