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Wavemeter W1649

Wavemeter W1649; Salford Electrical (ID = 2300028) Military
 
Wavemeter W1649; Salford Electrical (ID = 2300030) Military
 
Wavemeter W1649; Salford Electrical (ID = 2300031) Military
Wavemeter W1649; Salford Electrical (ID = 2491826) Military Wavemeter W1649; Salford Electrical (ID = 2491827) Military
Wavemeter W1649; Salford Electrical (ID = 2491828) Military
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Wavemeter W1649; Salford Electrical (ID = 2491826) Military
Salford Electrical: Wavemeter W1649 [Military] ID = 2491826 1400x897
Select picture or schematic to display from thumbnails on the right and click for download.
For model Wavemeter W1649, Salford Electrical Instruments Ltd; Salford:
photo kindly sent in by Fred van Mierlo, Netherlands.
 
Country:  Great Britain (UK)
Manufacturer / Brand:  Salford Electrical Instruments Ltd; Salford
Year: 1944 Category: Military Equipment (not Re, Tr or RXT)
Valves / Tubes 4: VR135 VR91 VR91 VR91 VR91
Wave bands Wave Bands given in the notes.
Details
Power type and voltage Batteries / addl. power jack / 6, 120 Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: Wavemeter W1649 - Salford Electrical Instruments
Notes

The W1649 is a VHF heterodyne wavemeter that can also be used as a signal generator.

The IF is 15 MHz, tunable -2 MHz to +3 MHz.
Wavemeter range 155-255 MHz. Accuracy +-0.2 MHz.
Signal Generator range 140-240 MHz. Accuracy +-0.5 MHz below 220 MHz.
The harmonics of a 5 MHz +- 0.01% crystal oscillator provide check points throughout the range.

The valve complement is:
VR135 (selected) Main oscillator
VR91 Mixer
VR91 Crystal oscillator
VR91 Detector
VR91 Output

The unit also contains one spare selected VR135

Power supplies:
LT 3x2v accumulators
HT 120v
A special Type 633 power supply unit that fits in the place of the HT battery allows the wavemeter to be operated from any of the following mains supplies:
80v 400-2000 Hz
110v 60 Hz
115v 400-2000 Hz
180v 500 Hz
230v 50 or 400 Hz

Mentioned in Manufacturer's documentation

Model page created by Bruce Taylor. See "Data change" for further contributors.



All listed radios etc. from Salford Electrical Instruments Ltd; Salford
Here you find 1 models, 1 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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