ANCIENT (before 1920)

click the picture to see details of the object

 Field Telephone Battery Box


 RAF Test Meter


Amplifier C Mk IV

 Morse Key


 Old Lamp


A pair of WWI Field Phones

 Switch & Rheostat


 Optical Pyrometer


 Wheatstone Bridge

Intercom phones

Cardew's Voltmeter

 Moving iron voltmeter


WWI Field Telephone

 Trench transmitter unit

 Old Resistance Box



Resistance Meter

Aircraft Tx HT Transformer

Early Dynamo

Telegraph Repeater


Langsdorf &Begole Frequency Meter

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