T1154 Transmitter Lancaster Bomber Transmitter
Radio Equipment 1154 Manual with Circuit.

TRANSMITTERS, Types T1154, A, B, C, D, E, F, H, I, K, L, M,  N
T1154A, T1154B, T1154C, T1154D, T1154E, T1154F, T1154H, T1154I, T1154K, T1154L, T1154M, T1154N


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T1154 Transmitter Types T.1154, T.1154A, B, C, D, E, F, H, I, K, L, M, N
T1154A, T1154B, T1154C, T1154D, T1154E, T1154F, T1154H, T1154I, T1154K, T1154L, T1154M, T1154N


The 1154 transmitter was fitted to the Lancaster bomber, motor torpedo boats and also used as a ground station.
Many are still around in collectors hands and operational as is the one pictured.

The frequency coverage is 5.5mc/s-1.5mc/s and 500kc/s-200kc/s in three ranges, blue, red, yellow.

The power output is 40-70 watts CW, 10-17.5 watts on RT "speech" and MCW. 

The aircraft version had an aluminum case for obvious reasons where as the marine version had a steel case. The weight of this unit is 46 lb 10 oz.

Percentage Modulation 70 per cent.
Class C, with suppressor grid modulation on M.C.W. and R/T.

Microphone Carbon granule, or electro-magnetic with sub-modulator A.1134 or A.1134A.

Master Oscillator; sidetone and modulator; two indirectly-heated triodes, VTIO5.
Power amplifier, two directly-heated pentodes. VT 104.

Power Input from 12 or 24-V. rotary transformers, supplied from aircraft system in airborne installations.
Or from a.c. mains via a rectifier 1,200 volts, 200 mA. H.T.; 6 volts, 4 amps. L.T.; 6 volts 2.5amps keying relay, (approx. 280 watts total).


1154 Front 2.jpg (45281 bytes)
 


1154 1.jpg (37991 bytes)
 


Additional information on the Wireless Set 1154 Transmitter
Kindly supplied by Bob Fairman.

The Lancaster was not the only aircraft in which this equipment was installed.
They were used extensively in aircraft of all types in the RAF during and after WW2.
I used them during the whole of my time in the RAF from 1949 to 1957 and they continued in use for some years after that.
During that time rumour had it that in a storage depot 'somewhere in England' there was a warehouse stacked to the rafters with unused replacement sets, which explained why they had not been superseded by radios of greater power which would have been a boon to us ops on long range Transport Command.

Manual and Circuit
Plus Additional Articles
available Details Below
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TRANSMITTERS, Types T.1154, T.1154A, B, C, D, E, F, H, I, K, L, M, N
T1154A, T1154B, T1154C, T1154D, T1154E, T1154F, T1154H, T1154I, T1154K, T1154L, T1154M, T1154N


Transmitters of the T.1154 series were designed primarily for installation in aircraft, to provide air-to-ground or air-to-air communication by W/T, and in all but two versions by .R /T as well. Series L, however, was intended for installation in high-speed launches, and series D and E were introduced for mobile ground stations. Normally all these transmitters were used with receivers of the R.1155 series.

Frequency coverage
Altogether there were thirteen production varieties of the T. 1154, the principal differences between them concerning frequency coverage and the provision or absence of R/T facilities. Component variations in the drive and output units, modifications of the “click-stop” mechanism for rapid selection of pre-set frequencies, and the use of steel or aluminium cases account for further versions. Table 1 enumerates the different types of transmitter and their frequency ranges. The colours stated in the table are those of the tuning controls for the ranges concerned.

Frequency coverage of transmitters T.1154

T.1154, *T.l154A, T.1154B, T.1154J, T.l154N
Range 1 (HF.), BLUE 10 Mc/s to 5.5 Mc/s
Range 2 (H.F.), RED 5.5 Mc/s to 3.0 Mc/s
Range 3 (M.F.), YELLOW 500 kc/s to 200 kc/s

T.1154C, T.1154F, ~T.1154H, T.1154K, T.l154M
Range 1 (H.F.), BLUE 16.7 Mc/s to 8.7 Mc/s
Range 2 (H.F.), BLUE 8.7 Mc/s to 4.5 Mc/s
Range 3 (H.F.), RED 4.5 Mc/s to 2.35 Mc/s
Range 4 (M.F.) YELLOW 500 kc/s to 200 kc/s

T.1154D, *T.1154E
Range 1 (H.F.), BLUE 8 Mc/s to 4.5 Mc/s
Range 2 (H.F.), RED 4.5 Mc/s to 2.5 Mc/s
Range 3 (M.F.), YELLOW 500 kc/s to 200 kc/s
T.1134L
Range 2 (H.F.), RED 5.5 Mc/s to 3 Mc/s
Range 2A (H.F.), BLUE 3 Mc/s to l.5 Mc/s
Range 3 (M.F.), YELLOW 500 kc/s to 200 kc/s

*Note._Transrnitters marked with an asterisk provide C.W. and M.C.W. only. All others are for C.W., M.C.W., and RT.

In all transmitters with three frequency ranges there are separate sets of tuning controls for each range, identified by colours as in the foregoing table. Series C, F, H, K, and M, however, use the same set of controls, coloured blue, for the two higher H.F. ranges.

Pre-set frequency selection
The click-stop mechanism is arranged so that the tuning controls click into and are rigidly held in the correct position for pre-set frequencies.
With the Multi-click system all the chosen frequencies are selected in turn as the tuning dials are rotated, and the operator sees which one is engaged at any moment by means of lettered tabs coming into view behind an aperture.
The mechanism can be released to allow free rotation of the dials when setting up frequencies which have not been pre-selected.

The Uni-click mechanism on the other hand allows one click-stop to be brought into use at a time, the stop required being selected by turning a selector knob to the appropriate position on a lettered dial.





Pictured at right are various views of my 1154 some showing the internal wiring.

Clicking on the images will produce a larger view, please use your browser back button to return to this page.


1154 Front.jpg (45245 bytes)
 


1154 LH.jpg (63480 bytes)
 


1154 Top.jpg (38646 bytes)
 


1154 RH.jpg (62280 bytes)
 

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


1154 Rear.jpg (51930 bytes)
 


The Wireless Set T1154 Transmitter
T1154A, T1154B, T1154C, T1154D, T1154E, T1154F, T1154H, T1154I, T1154K, T1154L, T1154M, T1154N

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


The Wireless Set T1154 manual AP2548A contains 66 A4 pages including Circuits Component lists and Layouts.
Plus 12 pages of Additional Articles if required.


Manual 66 A4 pages worldwide : -

Additional Articles 12 A4 pages worldwide : -

Special Offer Manual 66 pages and Additional Articles 12 pages Total 78 pages.


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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
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For Worldwide Prices Payment Options and Delivery Details
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The T1154 Additional Articles 12 pages.


The R.A.F. T.1154 Transmitter General Notes

T9 with the T.1154 Simple Modifications

Some T.1154 Modifications Better Phone Quality and Improved Aerial Coupling

About the T.1154 General Arrangement Modification and Operation

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