UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Amateur and Military Radio

Notices

Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment.

Reply
 
Thread Tools
Old 9th Jun 2019, 2:25 pm   #1
G3VKM_Roger
Hexode
 
G3VKM_Roger's Avatar
 
Join Date: Jun 2012
Location: Southeast Norfolk, UK.
Posts: 485
Default Coastal Radio Type 91/MX Ship Radiotelephone

Hello All,

A Coastal Radio Type 91/MX Ship MF Radiotelephone followed me home today from the East Suffolk Wireless Revival. It seems complete and worthy of restoration. I know there are Coastal Radio fans on this forum so be interested in hearing from anyone who has got one operational. Post for a manual going on the Items wanted page.

73

Roger/G3VKM
G3VKM_Roger is offline   Reply With Quote
Old 10th Jun 2019, 7:43 pm   #2
David Simpson
Octode
 
Join Date: Mar 2008
Location: Aberdeen, UK.
Posts: 1,828
Default Re: Coastal Radio Type 91/MX Ship Radiotelephone

Hello Roger,
Right enough, these old CR R/T's deserve repair & restoration. I'm not familiar with the 91/MX. Any chance of us seeing a picture or two, & the circuit diagram if you have it, please ?
My two CR R/T's were the Nimbus & the Curlew. There should be heaps of thread posts to peruse if you check back through "SEARCH". CR loved 807's & QQV06-40's in their Tx's.

Regards, David
David Simpson is online now   Reply With Quote
Old 10th Jun 2019, 8:27 pm   #3
G3VKM_Roger
Hexode
 
G3VKM_Roger's Avatar
 
Join Date: Jun 2012
Location: Southeast Norfolk, UK.
Posts: 485
Default Re: Coastal Radio Type 91/MX Ship Radiotelephone

Hi Dave,

I was hoping you'd pop-up when I used the magic words "Coastal Radio"!

I don't have any info but spent an hour on it today and am quite impressed with the build quality and especially the ease of getting to the discrete components. Some pix attached herewith, I can P/M you more if you like. There is a cabinet as well, makes a neat job.

RX coverage is MW and LW plus the MF marine band to 4MHz, TX has five 10X Brookes rocks, all present apart from 2182kHz. No PSU but the homebrew supplies I made for my TCS gear will be fine, I think.

Front-end of the RX looks to have had a upgrade, the RF amp is a 6BA6 and the freq changer an X79, the chassis is punched for octal bases and has been covered by a plate with the B9A and B7G bases, factory job by the quality of the workmanship. There's a 6V6GT for AF amplifier.

TX has three 6J5s, probably CO/BA/mod preamp and a pair of 807s modulating the 807 PA. Should be fixupable and easy to recap.

73

Roger/G3VKM
Attached Thumbnails
Click image for larger version

Name:	P1070629.JPG
Views:	105
Size:	161.6 KB
ID:	184855   Click image for larger version

Name:	P1070625.JPG
Views:	103
Size:	167.8 KB
ID:	184856   Click image for larger version

Name:	P1070626.JPG
Views:	102
Size:	168.8 KB
ID:	184857   Click image for larger version

Name:	P1070623.JPG
Views:	96
Size:	151.7 KB
ID:	184858   Click image for larger version

Name:	P1070627.JPG
Views:	97
Size:	165.3 KB
ID:	184859  

G3VKM_Roger is offline   Reply With Quote
Old 10th Jun 2019, 8:33 pm   #4
G3VKM_Roger
Hexode
 
G3VKM_Roger's Avatar
 
Join Date: Jun 2012
Location: Southeast Norfolk, UK.
Posts: 485
Default Re: Coastal Radio Type 91/MX Ship Radiotelephone

Couple of TX pix too.

73

Roger
Attached Thumbnails
Click image for larger version

Name:	P1070632.JPG
Views:	94
Size:	170.8 KB
ID:	184861   Click image for larger version

Name:	P1070630.JPG
Views:	82
Size:	159.3 KB
ID:	184862  
G3VKM_Roger is offline   Reply With Quote
Old 11th Jun 2019, 6:12 am   #5
G3VKM_Roger
Hexode
 
G3VKM_Roger's Avatar
 
Join Date: Jun 2012
Location: Southeast Norfolk, UK.
Posts: 485
Default Re: Coastal Radio Type 91/MX Ship Radiotelephone

This very useful link was posted "in another place"

http://radiohistory.uk/Coastalradio.htm

Cheers

Roger
G3VKM_Roger is offline   Reply With Quote
Old 12th Jun 2019, 1:59 pm   #6
G4_Pete
Hexode
 
G4_Pete's Avatar
 
Join Date: Feb 2014
Location: Southampton, Hampshire, UK.
Posts: 334
Default Re: Coastal Radio Type 91/MX Ship Radiotelephone

Hi Roger,
Thanks for posting the pictures. I regularly use a marine Ajax A20 on our Sunday Top Band net and occasionally on the VMARS 80 Metre net. The Ajax has a very similar looking TX layout with a twin valve AM modulator and a single 1625 ( 12v 807) PA.

Good luck with the restore
Pete
G4_Pete is offline   Reply With Quote
Old 12th Jun 2019, 5:13 pm   #7
G3VKM_Roger
Hexode
 
G3VKM_Roger's Avatar
 
Join Date: Jun 2012
Location: Southeast Norfolk, UK.
Posts: 485
Default Re: Coastal Radio Type 91/MX Ship Radiotelephone

Thanks Pete,

There does seem to be a fair number of Coastal sets around. Looks like the set I have is a 12 volt type so probably had a dynamotor supply when fitted to a ship.

Hope to use it on Top Band and also 80m if it will tune that high, the RX goes to 4MHz.


73

Roger
G3VKM_Roger is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 10:31 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright ©2002 - 2019, Paul Stenning.