R107 Receiver Reception Set Communication Receiver


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Reception Set R107

The Reception Set R107 was a receiver designed for CW and RT reception and was usually employed in conjunction with Wireless Sets No12 and 33.

The Frequency Range was 1.2 to 17.5 Mc/s in three overlapping bands.

Band 1 : - 17.5 to 7 Mc/s.

Band 2 : - 7.25 to 2.9 Mc/s.

Band 3 : - 3.0 to 1.2 Mc/s.

The set was designed for operation from a 12 volt accumulator or alternatively from 100/250 volts (50 c/s AC).

Change over from DC to AC operation was accomplished by means of a two-way switch in the power-chassis.

The complete apparatus comprises of three separate chassis units i.e. RF, IF/AF and Power.


These are mounted on a steel framework and a sheet steel panel carries the receiver controls.

Connection between the three units is achieved by means of tag-boards.
 

Circuit Description

A nine valve (eight plus rectifier) super-heterodyne circuit is employed.

The valves were indirectly heated (6.3v heaters) and were fitted with International Octal bases.

There are four RF pentodes  (ARP34), four double-diode-triodes (AR21) and a full wave rectifying valve (6x 5G).

The circuit was arranged as follows.

An RF stage was coupled by means of a band-pass filter to a mixer stage with a separate 1st Local Oscillator.  


The intermediate frequency signal (465 kc/s) thus produced was amplified by two IF stages which were followed by the combined signal detector AVC and AF stage.

An output stage and Beat Frequency Oscillator complete the circuit.

Power Consumption
DC 3.25 amps at 11.5 volts. AC 50 volt-amps.

Manual and Circuit
Plus Additional Articles
available Details Below
On Paper CD or Download
Click Here


The R107  Receiver Manual Contains the Following

GENERAL DESCRIPTION
Frequency Range
Performance
Power Supply
Aerial
Circuit and Controls
Panel Sockets
Panel Jacks
Construction
Weight and Dimensions

WORKING INSTRUCTIONS
Preliminary
Valves used
Connecting up power supply
Battery operation
A.C. mains operation
Operating the receiver
For R.T.
For C .W. reception
Use of the crash limiter

MAINTENANCE
General notes on maintenance
Test figures
Receiver
Receiver test panel readings
Point to point resistance tests
Voltage tests

Receiver sensitivity tests
General
2nd A.F. stage
1st A.F. stage
2nd 1.F. stage
1st I.F. stage
F.C. stage
Overall Sensitivity
Beat frequency oscillator

Location of faults
A.F. and preceding stages
R .F. Unit
Special note on valve faults
Inspection of wiring and coils
Receiver faults

Information for guidance of R.A.0.C . workshops
Notes on alignment of circuits
Dismantling Instructions
Special receiver faults

DIAGRAMS
Reception Sets R.107 Circuit diagram.
Front view of panel.
Plan view of interior.
Connections to Sender No. 12
Connections to Sender No.33

PLATES
Front Panel
Plan of Interior
Tuning Unit
Underside of  R.F. Chassis
Underside of  I.F. Chassis
Interior of B.F.O. Unit.
Underside of Power Unit

COMPONENTS LIST
Condensers
Resistors
Inductors
Switches
Transformers
Miscellaneous
Valves
Coding for Condensers and Resistances

R107 1.jpg (24835 bytes)

Manual and Circuit
Plus Additional Articles
available Details Below
On Paper CD or Download
Click Here

R107 2.jpg (24638 bytes)


R107 Receiver
The Manual contains 68 A4 pages paper copy including Circuits Component lists and Layouts.
Plus 13 pages of Additional Articles if required.
Manuals are Available Worldwide as a Download on CD or Paper Copy.

Manual 68 A4 pages worldwide

Additional Articles 13 pages
Manual 13 A4 pages worldwide

Or both the Manual 68 pages Plus 13 pages of Additional Articles as below a Total of 81 pages
Manual 81 A4 pages worldwide

Printed Paper Copy or on CD are Plus Postage.
( For all Payment Options plus UK and Overseas Postage )
( Please Click the Payment Links Below )


Details of Additional Service Articles available Below  Click Here


We do all we can to provide the very best that is available for you.
But in the unlikely event that any data should not be as you expected.
A refund is always available. Kind Regards Allen and Alanna.


Manuals are Available Worldwide as Paper Copy on CD or as a Download

Thank you for your interest. Allen and Alanna G0RIT
Should you wish to purchase


 
For Worldwide Prices Payment Options and Delivery Details
 Manual Only


 
For Worldwide Prices Payment Options and Delivery Details
 Additional Articles Only


  For Worldwide Prices Payment Options and Delivery Details
 Special Offer Manual and Additional Articles


Should you wish to contact us first with any queries Please Click Here

   


R107 Additional Articles 13 pages

Developing the R107

Bandspread on the R107

The R107 RF IF packs

Improving the R107 for SSB reception

The R107 receiver

The R107 Receiver
The Manual contains 68 A4 pages paper copy including Circuits Component lists and Layouts.
Plus 13 pages of Additional Articles if required.
Manuals are Available Worldwide as a Download on CD or Paper Copy.

Manual 68 A4 pages worldwide
Download 14.00


Additional Articles 13 pages
Manual 13 A4 pages worldwide
Download
9.50

Or both the Manual 68 pages Plus 13 pages of Additional Articles as below a Total of 81 pages
Manual 81 A4 pages worldwide
Download 18.50
Saving round 5.00 depending on format

Printed Paper Copy or on CD are Plus Postage.
( For all Payment Options plus UK and Overseas Postage )
( Please Click the Payment Links Below )


Details of Additional Service Articles available Above Click Here

We do all we can to provide the very best that is available for you.
But in the unlikely event that any data should not be as you expected.
A refund is always available. Kind Regards Allen and Alanna.


Manuals are Available Worldwide as Paper Copy on CD or as a Download

Thank you for your interest. Allen and Alanna G0RIT
Should you wish to purchase


 
For Worldwide Prices Payment Options and Delivery Details
 Manual Only


 
For Worldwide Prices Payment Options and Delivery Details
 Additional Articles Only


  For Worldwide Prices Payment Options and Delivery Details
 Special Offer Manual and Additional Articles


Should you wish to contact us first with any queries Please Click Here

   


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Revised: January 20, 2016