Cossor 335 TRF restoration - UK Vintage Radio Repair and Restoration Discussion Forum

vinrads · 26th Jan 2012, 1:23 pm

I found this wreck of a radio in the loft whilst looking for the Christmas tree, it looked in a sorry state, this would be my next project.

I like to get the set working before stripping it down, then you know that it worked before if you have problems later.

Volts were applies to the set,it sprang to life,with the long wire aerial attached it preformed very well good selectivity smooth reaction ample volume.

And it worked after restoration

SeanStevens · 26th Jan 2012, 1:27 pm

Nice job!

Excellent looking chassis now. Are you going to build it a case?

SEAN

vinrads · 26th Jan 2012, 1:46 pm

Hi Sean I have the cabinet waiting to be done!

SeanStevens · 26th Jan 2012, 2:22 pm

Let us see what that looks like now - then after!

SEAN

mark pirate · 26th Jan 2012, 9:48 pm

That chassis looks great, a worthwhile job, can't wait to see the cabinet!

Mark

vinrads · 31st Jan 2012, 5:06 pm

Pictures of the cabinet before and after.
The case was stripped using paint/varnish remover followed by a sand down medium then fine paper, no repair needed .

It's not the weather to be working outside spraying a cabinet, so! I had been meaning to try this product ,a test some time ago proved to be very good at covering plain plywood found on some cabinets.

This one had ply on the sides and the top

It is Ronseals quick drying woodstain,easy to apply with a lint free cloth several coats rubbed in well, and no fumes,It gives a semi sheen finish as it should be, I can recommend it. Mick.

Radio_Dave · 31st Jan 2012, 5:23 pm

Hi Mick,

I'm surprised but very impressed with your choice of finish! I bet it, now, looks just as it did when it left the factory... Well done

Regards
David

vinrads · 31st Jan 2012, 5:28 pm

Another picture

Just a thought is the hole in the side original it looks like factory done?

31st Jan 2012, 7:11 pm

I love the 'spun aluminium' look of the screening cans, why didn't I think of that?

Cobaltblue · 31st Jan 2012, 7:34 pm

Hi Mick
Mine has a pull switch on the side I think its the wavechange.

Enjoy

Mike T

vinrads · 31st Jan 2012, 7:58 pm

Hi Mike there is a power switch on the front, this one is medium wave only strange I know.

Cobaltblue · 31st Jan 2012, 8:21 pm

Hi Mick
Yes the on/off is on the front I have put a couple of pics from under chassis its definitely the wavechange on this 335

Enjoy

Mike T

Cobaltblue · 31st Jan 2012, 9:12 pm

The Cossor 335 is a kit set so I guess its possible it was assembled without the switches and was made as MW only but that would be odd, did you take the cans off the coils?
Are the LW coils present inside the cans?

Enjoy

Mike T

vinrads · 31st Jan 2012, 9:40 pm

Hi Mike thanks for the pictures I can see I need to take the cans off it would be nice to have LW .
I am sure it would be possible to fabricate the switch. Mick.

Cobaltblue · 31st Jan 2012, 10:16 pm

Hi Mick I took the can off the Aerial coil as it was the easiest to get at.

I have not started to restore this set yet.

Hope the pics help!

I am always interested in Cossor sets as they are my main interest

Enjoy

Mike T

kalee99 · 31st Jan 2012, 11:41 pm

What an excellent job you have done. I love these simple wooden sets, they are very undervalued just now.
Paul.

vinrads · 1st Feb 2012, 3:09 pm

Hi Mike it looks like I need your help, the can is the same as yours but no switch there are three wires connected together ,could you possibly tell me if the switch is single pole or double pole and which connections to the switch, regards Mick.

Cobaltblue · 1st Feb 2012, 6:44 pm

Hi Mick

I will take pickys when I get Back

Enjoy

Mike T

Cobaltblue · 1st Feb 2012, 8:19 pm

Hi Mick this is the Aerial coil again.

The switch looks to be a one pole change over but its not.

In the position shown all 3 connections are connected together.

In the other position no connections are made.

This seems to be a pretty common on Cossor sets of this period my 323 has the same arrangement via a push rather than toggle switch.

I won't re-assemble just yet!

The

Enjoy

Mike T

vinrads · 2nd Feb 2012, 9:46 pm

Hi Mike I think I have sorted the aerial coil, but the det coil tc2 is giving me problems,would you be kind enough to see if your coil is the same as this one .Regards Mick.

26th Jan 2012, 1:23 pm	#1
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,762	Cossor 335 TRF restoration I found this wreck of a radio in the loft whilst looking for the Christmas tree, it looked in a sorry state, this would be my next project. I like to get the set working before stripping it down, then you know that it worked before if you have problems later. Volts were applies to the set,it sprang to life,with the long wire aerial attached it preformed very well good selectivity smooth reaction ample volume. And it worked after restoration Attached Thumbnails

26th Jan 2012, 1:27 pm	#2
SeanStevens Octode Join Date: Sep 2009 Location: Bath, Somerset, UK. Posts: 1,033	Re: Cossor 335 TRF restoration Nice job! Excellent looking chassis now. Are you going to build it a case? SEAN __________________ There are only 10 types of people, those who understand the binary system, and those who don't.

26th Jan 2012, 1:46 pm	#3
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,762	Re: Cossor 335 TRF restoration Hi Sean I have the cabinet waiting to be done!

26th Jan 2012, 2:22 pm	#4
SeanStevens Octode Join Date: Sep 2009 Location: Bath, Somerset, UK. Posts: 1,033	Re: Cossor 335 TRF restoration Let us see what that looks like now - then after! SEAN __________________ There are only 10 types of people, those who understand the binary system, and those who don't.

26th Jan 2012, 9:48 pm	#5
mark pirate Dekatron Join Date: Mar 2008 Location: Worthing, West Sussex, UK Posts: 5,185	Re: Cossor 335 TRF restoration That chassis looks great, a worthwhile job, can't wait to see the cabinet! Mark

31st Jan 2012, 5:06 pm	#6
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,762	Re: Cossor 335 TRF restoration Pictures of the cabinet before and after. The case was stripped using paint/varnish remover followed by a sand down medium then fine paper, no repair needed . It's not the weather to be working outside spraying a cabinet, so! I had been meaning to try this product ,a test some time ago proved to be very good at covering plain plywood found on some cabinets. This one had ply on the sides and the top It is Ronseals quick drying woodstain,easy to apply with a lint free cloth several coats rubbed in well, and no fumes,It gives a semi sheen finish as it should be, I can recommend it. Mick. Attached Thumbnails

31st Jan 2012, 5:23 pm	#7
Radio_Dave Nonode Join Date: Jun 2004 Location: Norwich, Norfolk, UK. Posts: 2,543	Re: Cossor 335 TRF restoration Hi Mick, I'm surprised but very impressed with your choice of finish! I bet it, now, looks just as it did when it left the factory... Well done Regards David __________________ http://www.youtube.com/ My Nixie Clocks

31st Jan 2012, 5:28 pm	#8
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,762	Re: Cossor 335 TRF restoration Another picture Just a thought is the hole in the side original it looks like factory done? Attached Thumbnails

31st Jan 2012, 7:11 pm	#9
Guest Guest Posts: n/a	Re: Cossor 335 TRF restoration I love the 'spun aluminium' look of the screening cans, why didn't I think of that?

31st Jan 2012, 7:34 pm	#10
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,866	Re: Cossor 335 TRF restoration Hi Mick Mine has a pull switch on the side I think its the wavechange. Enjoy Mike T __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

31st Jan 2012, 7:58 pm	#11
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,762	Re: Cossor 335 TRF restoration Hi Mike there is a power switch on the front, this one is medium wave only strange I know.

31st Jan 2012, 8:21 pm	#12
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,866	Re: Cossor 335 TRF restoration Hi Mick Yes the on/off is on the front I have put a couple of pics from under chassis its definitely the wavechange on this 335 Enjoy Mike T Attached Thumbnails __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

31st Jan 2012, 9:12 pm	#13
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,866	Re: Cossor 335 TRF restoration The Cossor 335 is a kit set so I guess its possible it was assembled without the switches and was made as MW only but that would be odd, did you take the cans off the coils? Are the LW coils present inside the cans? Enjoy Mike T __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

31st Jan 2012, 9:40 pm	#14
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,762	Re: Cossor 335 TRF restoration Hi Mike thanks for the pictures I can see I need to take the cans off it would be nice to have LW . I am sure it would be possible to fabricate the switch. Mick.

31st Jan 2012, 10:16 pm	#15
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,866	Re: Cossor 335 TRF restoration Hi Mick I took the can off the Aerial coil as it was the easiest to get at. I have not started to restore this set yet. Hope the pics help! I am always interested in Cossor sets as they are my main interest Enjoy Mike T Attached Thumbnails __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

31st Jan 2012, 11:41 pm	#16
kalee99 Rest in Peace Join Date: Dec 2004 Location: Newcastle Upon Tyne, Tyneside, UK. Posts: 420	Re: Cossor 335 TRF restoration What an excellent job you have done. I love these simple wooden sets, they are very undervalued just now. Paul.

1st Feb 2012, 3:09 pm	#17
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,762	Re: Cossor 335 TRF restoration Hi Mike it looks like I need your help, the can is the same as yours but no switch there are three wires connected together ,could you possibly tell me if the switch is single pole or double pole and which connections to the switch, regards Mick.

1st Feb 2012, 6:44 pm	#18
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,866	Re: Cossor 335 TRF restoration Hi Mick I will take pickys when I get Back Enjoy Mike T __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

1st Feb 2012, 8:19 pm	#19
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,866	Re: Cossor 335 TRF restoration Hi Mick this is the Aerial coil again. The switch looks to be a one pole change over but its not. In the position shown all 3 connections are connected together. In the other position no connections are made. This seems to be a pretty common on Cossor sets of this period my 323 has the same arrangement via a push rather than toggle switch. I won't re-assemble just yet! The Enjoy Mike T Attached Thumbnails __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk Last edited by Cobaltblue; 1st Feb 2012 at 8:37 pm. Reason: corrected operation of switch

2nd Feb 2012, 9:46 pm	#20
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,762	Re: Cossor 335 TRF restoration Hi Mike I think I have sorted the aerial coil, but the det coil tc2 is giving me problems,would you be kind enough to see if your coil is the same as this one .Regards Mick. Attached Thumbnails