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                          VIRTUAL  MUSEUM

 

COLLECTION  OF  HISTORIC   EQUIPMENT   AND   COMPONENTS

Telecom Milestones

 WIRELESS COLLECTION

WIRELESS RECEIVER TUNNING COILS

LOOSE COUPLER TRANSFORMER, wireless coillection, spark-gap wireless transmitter, wireless high voltage coil, Ford T ignition coil

LOOSE COUPLER TRANSFORMER  WITH

 

TUNNING ON THE PRIMARY AND SECONDARY

TUNING COLOOSE COUPLER TRANSFORMER, wireless coillection, spark-gap wireless transmitter, wireless high voltage coil, Ford T ignition coilIL WITH TWO SLIDERS,

These tuning coils were used to build Crystal Detector Wireless Receivers, in the early days of Wireless Telegraph.

 

The frequency range covered the long and medium waves.

TUNING COIL WITH TWO SLIDERS

 

 

CRYSTAL DETECTORS

 

Point contact assembly

and GALENA crystals

IGNITION COIL OF FORD MODEL" "LOOSE COUPLER TRANSFORMER, wireless coillection, spark-gap wireless transmitter, wireless high voltage coil, Ford T ignition coilT" Automobile,

IGNITION COIL OF FORD "MODEL"T" Automobile.

It was one of 4 plug-in coils in a wood box, which ignited the 4 cylinders engine. 

At the beginning of the 20th century, experimenters and hobbyists have built home-made Wireless Telegraph spark-gap transmitters from parts that were available at specialized stores.

 

The FORD T ignition coil was used by many for supplying the high voltage pulses to the spark gap circuit.

 

The picture at the right shows an example of amateur wireless telegraph spark-gap transmitter of those days.

Amateur wireless telegrapLOOSE COUPLER TRANSFORMER, wireless coillection, spark-gap wireless transmitter, wireless high voltage coil, Ford T ignition coilh spark transmitter,

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