Eddystone 640 — communications receiver
The Eddystone 640 is a 1947 communications receiver employing double-conversion superheterodyne reception. It receives AM (amplitude modulation) and CW (Morse telegraphy).
Frequency coverage
Three bands cover approximately 1.7 to 32 MHz. Facilities include a beat-frequency oscillator and optional crystal filtering.
Service manual
Eddystone 640 service manual (24-page English PDF), with original circuits, alignment and operational guidance.
Eddystone 640 — communications receiver manuals and documentation
Manuals and documents are linked when their source and relationship to this model have been verified.
Ficha técnica
- Fabricante
- Eddystone
- Función
- Receptor
- DSP
- No verificado
Manuales y documentación
Eddystone 640 Service Manual
Fuente: RigReference
Estado del enlace: ok
El documento permanece en la fuente original; EA2EWL no lo aloja localmente.
Fuentes y verificación
Los enlaces externos se comprueban periódicamente. Un documento accesible públicamente no se aloja en EA2EWL salvo que exista base suficiente para su redistribución.