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 Radio (domestic)

Notices

Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only.

Closed Thread
 
Thread Tools
Old 13th May 2017, 9:54 pm   #1
wrenrover
Diode
 
Join Date: Dec 2015
Location: Etchingham, East Sussex, UK.
Posts: 6
Default Cossor 524 Melody Maker

Just bought this lovely set. The FM is a bit quiet. Can someone tell me how to connect an external aerial. Do I connect at the dipole connector or the main aerial. Is it possible to still purchase the small plugs that would fit the aerial socket/s
Attached Thumbnails
Click image for larger version

Name:	DSCF6434.jpg
Views:	119
Size:	142.4 KB
ID:	142547   Click image for larger version

Name:	DSCF6433.jpg
Views:	110
Size:	107.2 KB
ID:	142548  
wrenrover is offline  
Old 13th May 2017, 10:28 pm   #2
'LIVEWIRE?'
Dekatron
 
'LIVEWIRE?''s Avatar
 
Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 7,191
Default Re: Cossor 524 Melody Maker

An external aerial should be connected instead of the internal FM aerial, which is only of use in strong signal areas, but I doubt very much if the plug used is still available. Try putting a request in the 'Sets, Parts & Service info. wanted' section. Another forum member may have a spare plug.
'LIVEWIRE?' is online now  
Old 13th May 2017, 10:52 pm   #3
David G4EBT
Dekatron
 
David G4EBT's Avatar
 
Join Date: Feb 2003
Location: Cottingham, East Yorkshire, UK.
Posts: 3,884
Default Re: Cossor 524 Melody Maker

Just a point to bear in mind - if the set uses an ECC85 valve in the front end, they're noted for not being very long-lived, so it's not necessarily the aerial that's causing low volume on FM, but an ECC85 that's well past its best. A Google search should turn up a new/old stock replacement if need be.

I guess that failing FM performance was why many such sets were consigned to the loft rather than to pay a repair shop to diagnose and rectify the fault, which would doubtless have cost as much as a new (by then, transistor) set. You could also try one of those cheap twin 300 Ohm flex FM aerials which might be better than the one attached to the back panel of the set.

Nice set, good luck with it.
__________________
David.
BVWS Member.
G-QRP Club member 1339.
David G4EBT is online now  
Old 13th May 2017, 11:10 pm   #4
'LIVEWIRE?'
Dekatron
 
'LIVEWIRE?''s Avatar
 
Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 7,191
Default Re: Cossor 524 Melody Maker

I hadn't thought about weak ECC85s, David. Should have done, as I have a Pye radio with the same problem, except that fitting a NOS ECC85 didn't restore the FM performance. More's the pity as except for a broken knob the radio in question looks almost as good as new, and performs well on AM.
'LIVEWIRE?' is online now  
Old 13th May 2017, 11:29 pm   #5
Ambientnoise
Heptode
 
Join Date: Feb 2006
Location: Marlborough, Wiltshire, UK.
Posts: 530
Default Re: Cossor 524 Melody Maker

I have one of these sets, sounds good. I found the best results with a simple 60 cm or so wire/rod into the lower of the two dipole connections (where the int aerial is connected in the pic) and the red plug into the E socket. Adjust the wire position for best reception. The plugs can occasionally be found, I use split pins if necessary.

Beware the knobs, especially the wavechange which takes a lot of stress. They are quite fragile and are unobtainium.
Ambientnoise is offline  
Old 14th May 2017, 12:03 am   #6
wrenrover
Diode
 
Join Date: Dec 2015
Location: Etchingham, East Sussex, UK.
Posts: 6
Default Re: Cossor 524 Melody Maker

Hi David, the set has 6 valves; 6AQ8 6AJ8 6BY7 6AK8 6BQ5 6V4. Thanks for the tip anyway. I'll try making a plug and connect it to the loft aerial I run my Leek Troughline 3 with. Thanks.
wrenrover is offline  
Old 14th May 2017, 12:12 am   #7
AC/HL
Moderator
 
AC/HL's Avatar
 
Join Date: Nov 2003
Location: Heckmondwike, West Yorkshire, UK.
Posts: 7,759
Default Re: Cossor 524 Melody Maker

To try, you could pinch the existing plug. If it doesn't help, nothing lost.
__________________
Bill, BVWS member
AC/HL is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 10:37 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 - 2020, vBulletin Solutions, Inc.
Copyright ©2002 - 2020, Paul Stenning.