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Aerial Artificial type 1A

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  1. Aerial Artificial type 1A

Aerial Artificial type 1A

 

The Aerial Artificial type 1A is used in the RAF for aligning the output transmitter stage of the pre-war T 1083 for test purposes. This type 1A is a prewar type.

A schematic diagram is shown is picture 1. Note the different conections for the different frequence ranges.

It can also be used very easily for aligning the TR 1196 or TR 9.

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The front and the electrical diagram.

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The front of my set.

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Here you can see the Artificial Aerial, used by the Australian Army in testing the transmitters,

type T-1083.

Aerial to be seen on the left on the shelve.

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TR 9F

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  1. Transmitter/receiver TR 9-F

Transmitter/receiver TR 9-F

In working condition.

 

This is the pre war wellknown “SPITFIRE” sender receiver, type TR 9 F. Although the type 9 F is not used in it, but in the bigger aircrafts like Lancaster etc. for communication between the airfieldtower and the aircraft in close distance.

It is fully working in the 40 meter band with a crystal on 7078 Khz, amplitude modulated, by means of a intercommunication  amplifier, type A 1368. For using this amplifier, I had to make the connectors and the plugboard myself.

Normally a A 1134 is used. By lack of that type, to let it work, I used  the A 1368 intercommunication amplifier.

Question: can anyone tell me about the precise usage of the A 1368 in the RAF?,

Pse some info in the COMMENT at the end of the page.

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The TR 9-F transmitter/receiver in all original condition.

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In front the copies of the plugboard etc, for connecting the amplifier to the TR 9.

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Transmitter part, front..

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Inside the transmitter.

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The power amplifier tube of the transmitter.

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The power amplifier anode coil of the transmitter.

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TR 1196

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  1. TR1196a,
  2. transmitter/receiver
  3. four channels.

TR1196a,

transmitter/receiver

four channels.

 Working condition.

This is a  transmitter-receiver used in airplanes like Lancaster etc. It is a four channel unit. For the receiver, as well as the transmitter, four crystals are used.

It is remote controlled by a switch box. On the picture a replica controll box is used. But the whole unit is working. Supply voltage is 12 volts, which indicates it is an earlier one.

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Transmitter receiver TR 1196 a

Left the connection for the oxygenmask earphones and microphone. In the front the crystal types. At the right the replica remote control box, for choosing one of the four channels and controlling the transmitter.

 

 

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Inside the unit.

Left receiverpart and right the transmitter part. See also there the HF coils for matching the energy to the earial.

 

 

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At the right front the alternator power supply.

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In front a good view on the crystal board of the transmitter.

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In front the earial- and ground connection and the type plate. Also the Air Ministry mark. The white earia is a modification chart.

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Left the transmitter with HF earial coils, for each channel one coil. In the mid the four tuning knobs for pre tuning the HF stages of the receiver for each channel.

 

 

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An overview of the chassis.

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A side view.

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A nice paper layout picture  inside of the housing. It showes the components layout of the transmitterpart for service.