R107 Receiver Communication Receiver Manual with Circuits and Layouts

R107 Receiver Reception Set
Communication Receiver

Circuit Diagram, Service Manual, Service Information, Schematic Diagrams and Manuals

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

The R107 Receiver manual contains 68 A4 pages paper copy including Circuits Component lists and Layouts.
Plus 13 pages of Additional Articles if required.

Cost £10 total of 68 A4 photo copy pages plus post and packing UK £3.80
UK Total = £13.80 ( For UK and Overseas Payment Options See Below )

Additional Articles 13 pages £4.50 plus £2.80 UK post and packing.
Total £7.30 ( For UK and Overseas Payment Options See Below )

Or both the Manual 68 pages Plus 13 pages of Additional Articles as below a Total of 81 pages £14.50 plus
UK post and packing £4.15
Total = £18.65 Saving £2.45 ( For UK and Overseas Payment Options See 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
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The 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

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

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