Marconi AD108 Airborne HF Receiver - UK Vintage Radio Repair and Restoration Discussion Forum

Dave757 · 7th Oct 2010, 4:14 pm

Hi All,

Does anyone please have any information, particularly a schematic or manual for the above radio.

Kind regards
Dave

beamcurrent · 7th Oct 2010, 9:29 pm

Hi Dave,

I have only a copy of the catalogue for the AD108, no other info so can only help a bit. Nice set!

Regards Brian

www.tvcameramuseum.org

Dave757 · 8th Oct 2010, 12:21 pm

Hi Brian,

Many thanks for the info. I am looking for the schematic for a friend who doesn't have a computer, but has just bought one of these. So far, I haven't managed to find anything except a picture of a very corroded one (not his!)

Kind regards

Dave

Nick_B333 · 8th Oct 2010, 10:58 pm

Dave, did you friend buy this on Sunday at Hack Green by any chance? The guy on the table next to me had bought one and I was curious to know what it was.

Dave757 · 9th Oct 2010, 12:20 am

Hi Nick,

Yes indeed, it would be the same set. I haven't seen it myself yet, but I spoke to Howard to find out how he had got on at the rally, and he mentioned that he had bought it. As he does not use a computer I said I would try and find some circuit details if possible. I shall be visiting him tomorrow afternoon, and am looking forward to seeing if he has got it working.

Kind regards

Dave G0ELJ

pnh0001 · 9th Oct 2010, 8:51 am

I have one of these receivers, a very nice little airborne unit, possibly Marconi's first post R1155 receiver? It has much the same coverage but uses miniature B7G base valves. Anyway, somewhere I have a circuit plus some notes about it on BOAC logoed paper, I'll look them out and scan for those interested.

I used mine back in the early 1970s as a tunable IF (2-4MHz) for a 2m converter.

I'll post again when I have found the data.

cheers

Peter

Dave757 · 9th Oct 2010, 1:29 pm

Quote:

Originally Posted by pnh0001

Anyway, somewhere I have a circuit plus some notes about it on BOAC logoed paper, I'll look them out and scan for those interested. I'll post again when I have found the data.

Hi Peter

Many thanks for your help, I'll pass on anything you can find. I believe that as you say, this set was the successor to the civilian equivalent of the R1155.

Kind regards

Dave

pnh0001 · 11th Oct 2010, 12:44 am

I have scanned my info on the AD108 receiver into a 12MB pdf file.

Download it from:

ftp://ftp.jkmrc.uq.edu.au

username: jk-ftp
password: jk456

It will be there for a week before being removed by our system.

Sorry a few pages have scribbles on them my then 2 yr old daught got hold of the paper and tried 'drawing'.

I have added a couple of pics of the left and right side internals.

Peter

Dave757 · 11th Oct 2010, 12:11 pm

Quote:

Originally Posted by pnh0001

I have scanned my info on the AD108 receiver into a 12MB pdf file.

Hi Peter,

Many thanks for the manual and the pictures, My friend will be absolutely delighted with the information. I am printing a copy for him as I am typing this. I had the opportunity to try the set, which Howard has working, at the weekend, and although the tuning is a bit fiddly, the stability and general performance are great.

Again, many thanks for your assistance.

Kind regards
Dave G0ELJ

M0FYA Andy · 11th Oct 2010, 1:54 pm

Peter,

I just tried to download your AD108 information file, I get to the site, but when I try to download get the error messages 'Cannot login to ftp server' and '530 user anonymous cannot login'

Any ideas?

Thanks,

Andy

beamcurrent · 11th Oct 2010, 4:23 pm

Hi Andy & Peter

First Thank you very much for making the circuit available, And I had no trouble downloading, I would try again maybe the server was busy??

Brian S

pnh0001 · 12th Oct 2010, 11:52 pm

I have looked at the server again and its ok with me. Our IT guys say that the sort of message you saw is often due to restrictions at your end, were you trying to download at home or at work? Sorry there is not much else I can do.

cheers

Peter

AlanBeckett · 13th Oct 2010, 12:00 am

Andy,
It downloads OK for me.
PM me your email address and I'll send it on.
Alan

richfran · 13th Apr 2011, 5:28 pm

Hello all,
I was delighted to come across this thread. I have an AD108 that has been sitting in bits in a biscuit tin in my loft for 20 yrs. It was originally used a tunable IF for 2 metres by a friend. Over the years I had drawn a complete blank in trying to find any data on it - I even tried the Marconi archives with no luck.
Is there any chance that somebody could make the 12MB scan (with daughter's scribbles) available to me?
Thanks,
Richard

Nick_B333 · 22nd May 2011, 6:18 pm

Re-shared mine as the original link no longer seems to be available.

AD108 Manual PDF

7th Oct 2010, 4:14 pm	#1
Dave757 Heptode Join Date: Apr 2009 Location: Scratby, Norfolk, UK. Posts: 651	Marconi AD108 Airborne HF Receiver Hi All, Does anyone please have any information, particularly a schematic or manual for the above radio. Kind regards Dave

8th Oct 2010, 12:21 pm	#3
Dave757 Heptode Join Date: Apr 2009 Location: Scratby, Norfolk, UK. Posts: 651	Re: Marconi AD108 Airborne HF Receiver Hi Brian, Many thanks for the info. I am looking for the schematic for a friend who doesn't have a computer, but has just bought one of these. So far, I haven't managed to find anything except a picture of a very corroded one (not his!) Kind regards Dave

8th Oct 2010, 10:58 pm	#4
Nick_B333 Tetrode Join Date: Jul 2010 Location: Nottingham, Notts. UK. Posts: 71	Re: Marconi AD108 Airborne HF Receiver Dave, did you friend buy this on Sunday at Hack Green by any chance? The guy on the table next to me had bought one and I was curious to know what it was. __________________ Still reading Radio Servicing by Abraham Marcus.

9th Oct 2010, 12:20 am	#5
Dave757 Heptode Join Date: Apr 2009 Location: Scratby, Norfolk, UK. Posts: 651	Re: Marconi AD108 Airborne HF Receiver Hi Nick, Yes indeed, it would be the same set. I haven't seen it myself yet, but I spoke to Howard to find out how he had got on at the rally, and he mentioned that he had bought it. As he does not use a computer I said I would try and find some circuit details if possible. I shall be visiting him tomorrow afternoon, and am looking forward to seeing if he has got it working. Kind regards Dave G0ELJ

9th Oct 2010, 8:51 am	#6
pnh0001 Triode Join Date: Nov 2007 Location: Brisbane, Australia Posts: 32	Re: Marconi AD108 Airborne HF Receiver I have one of these receivers, a very nice little airborne unit, possibly Marconi's first post R1155 receiver? It has much the same coverage but uses miniature B7G base valves. Anyway, somewhere I have a circuit plus some notes about it on BOAC logoed paper, I'll look them out and scan for those interested. I used mine back in the early 1970s as a tunable IF (2-4MHz) for a 2m converter. I'll post again when I have found the data. cheers Peter

11th Oct 2010, 12:44 am	#8
pnh0001 Triode Join Date: Nov 2007 Location: Brisbane, Australia Posts: 32	Re: Marconi AD108 Airborne HF Receiver I have scanned my info on the AD108 receiver into a 12MB pdf file. Download it from: ftp://ftp.jkmrc.uq.edu.au username: jk-ftp password: jk456 It will be there for a week before being removed by our system. Sorry a few pages have scribbles on them my then 2 yr old daught got hold of the paper and tried 'drawing'. I have added a couple of pics of the left and right side internals. Peter Attached Thumbnails

11th Oct 2010, 1:54 pm	#10
M0FYA Andy Nonode Join Date: May 2007 Location: Preston, Lancashire, UK. Posts: 2,511	Re: Marconi AD108 Airborne HF Receiver Peter, I just tried to download your AD108 information file, I get to the site, but when I try to download get the error messages 'Cannot login to ftp server' and '530 user anonymous cannot login' Any ideas? Thanks, Andy

11th Oct 2010, 4:23 pm	#11
beamcurrent Heptode Join Date: Mar 2008 Location: Camberley, Surrey, UK. Posts: 805	Re: Marconi AD108 Airborne HF Receiver Hi Andy & Peter First Thank you very much for making the circuit available, And I had no trouble downloading, I would try again maybe the server was busy?? Brian S

12th Oct 2010, 11:52 pm	#12
pnh0001 Triode Join Date: Nov 2007 Location: Brisbane, Australia Posts: 32	Re: Marconi AD108 Airborne HF Receiver I have looked at the server again and its ok with me. Our IT guys say that the sort of message you saw is often due to restrictions at your end, were you trying to download at home or at work? Sorry there is not much else I can do. cheers Peter

13th Oct 2010, 12:00 am	#13
AlanBeckett Rest in Peace Join Date: Dec 2008 Location: Burton upon Trent, East Staffordshire, UK. Posts: 1,686	Re: Marconi AD108 Airborne HF Receiver Andy, It downloads OK for me. PM me your email address and I'll send it on. Alan

13th Apr 2011, 5:28 pm	#14
richfran Retired Dormant Member Join Date: Apr 2009 Location: Brighton Posts: 1	Re: Marconi AD108 Airborne HF Receiver Hello all, I was delighted to come across this thread. I have an AD108 that has been sitting in bits in a biscuit tin in my loft for 20 yrs. It was originally used a tunable IF for 2 metres by a friend. Over the years I had drawn a complete blank in trying to find any data on it - I even tried the Marconi archives with no luck. Is there any chance that somebody could make the 12MB scan (with daughter's scribbles) available to me? Thanks, Richard

22nd May 2011, 6:18 pm	#15
Nick_B333 Tetrode Join Date: Jul 2010 Location: Nottingham, Notts. UK. Posts: 71	Re: Marconi AD108 Airborne HF Receiver Re-shared mine as the original link no longer seems to be available. AD108 Manual PDF __________________ Still reading Radio Servicing by Abraham Marcus.