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Relay/Matching Unit

Technical Information

Catalogue No: C0875
Category: Unknown
Object Type: Module/Sub-Assembly/Component
Object Name: Relay/Matching Unit
Part No: GP 33943
Serial No: 202/68
Manufacturer: Elliott Bros (London) Ltd
Division: Unknown
Platform(s): Herald
Year of Manufacture: 1968
Dimensions: Width (mm): 166
Height (mm): 65
Depth (mm): 125
Weight (g): 637
Location: Grey Dexion Shelf Unit [Main Store]

Elliott Bros London Ltd
Ser. No. 202/68
GP 33943
Relay/Matching Unit
Not Energised


The given dimensions are for the box only; with the 1.8m cable assembly the weight is 1,128g.
The picture of its interior shows the relays and some capacitors presumably used to match the load impedance of the signals on the coaxial connectors. Although they are RF connectors the internal wiring is not consistent with RF signals not ones susceptible to noise.
This is part of the Dart Herald Fuel Flowmeter system and operates with a Fuel Indicator GP282/039 and GP282/040

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