Marconi 1155A

Thanks all, so much information. As I’m not at all technically minded a lot of it might as well be in Bantu but thank you all once again.

Not sure what to do with it but as it is not really my field of interest I’ll probably move it on to someone who can appreciate it more and maybe even restore and display it.

Regards,

kev35

It’s time to get a magnet out!

The R1155A was used in the Halifax and should have an aluminium case. If your magnet sticks to the case it’s been replaced with the standard steel case used on most of the other models (quite a common occurrence).

Anne

For fear of turning this into a Radio Ham thread 🙂
I remember a story when CB radio was being considered for the UK. It was suggested that `a certain frequency` could be used because it was clear. However the authorities wouldn’t allow it because the frequency was `still in use`. The disputed frequency was the one (or one of) used by RAF Bomber Command in WW2.
Is this true or just an urban myth?
In the end CB was given a horrid frequency much to the annoyance of taxi’s, tv, radio and the Police.

If you listen on the 80m short wave band on a Saturday morning between 8am and 10am on a freuency of 3.615 mhz AM , you will hear people using the 1155 and 1154 matching transmitter on the air ,its the VMARS group ,some will be using the Art13 tx and the bc342 as used in the B17 , One of the hams on there did some of the stunt flying in the film Empire of the Sun ,the other pilot,s Mark and Ray sadly have passed on .

There is a list of R1155 publications here Kev: http://www.royalsignals.org.uk/raf.html
I think you may have to register with them. I saw the AP once in the early 70s when servicing the equipment for marine craft and there was a fairly good explanation on the differences between the different suffixes and in places, details of which suffix was on which aircraft fleet. Can’t for the life of me remember the detail now of course!

There was one model to stay away from, this had inadvertently been built using plumber’s flux on the soldered joints. It was taken out of air use and retained at Technical Training schools if I recall. I’m certain it wasn’t the suffix ‘A’.

It would appear that you have an original unit. Many were bought by Radio Amateurs as war surplus in the 60s and one of the first preferred modifications was to remove the d/f circuit entirely because amateurs didn’t need d/f. I think you have a comparatively rare box and I’m sure that there will be a cockpit restoration waiting for it somewhere!

I’m not able to offer any guess on the serial number or value. Restored to pristine and working condition do fetch many £ hundreds I seem to recall.

This might be worth looking at: https://www.google.com/search?q=ap+for+R1155&ie=UTF-8&sa=Search&channel=fe&client=browser-ubuntu&hl=en

my father had one of these which we donated to southend air museum it was still working at that time i recall mid-late 1970’s

I have one of these bought in 1965 and I found out then thet the 1155As were produced in 1940 but I can’t now remember the reference. Look after it!
Jim

This is an early model of 1155 so I woud suppose early war date (big serial number though), too early for the Lancaster and usually associated with Halifax. Looks like an EK Cole inspection stamp on the front?

One one ebay at the moment.

Dave

Kev -worth in the 150-200 range . Take a picture of the valves as how complete they are can effect its value . There are loads of knowledgable people out there on these.