Repairing the case on an Ekco A22 - UK Vintage Radio Repair and Restoration Discussion Forum

vinrads · 4th Apr 2023, 10:04 am

This is the case with the left foot missing ,I need to re construct a copy from a good case, I was thinking of using silicone rubber to make the mould which I have used before when making knobs, the question is what pouring resin do I go for bearing in mind the case thickness varies between 3mm and 5mm ,any suggestions welcome ,Mick.

Lloyd 1985 · 4th Apr 2023, 10:19 am

What colour is the case? If it’s black then there is some fire retardant potting compound that I have used, comes in black, so far I have only made knobs with it, and it doesn’t seem to shrink at all, no idea what it’s like for making larger areas yet though. I do intend to try making a bottom cover for a Murphy A100 with it at some point!

I’ll see if I can find a link to the stuff..

Regards,
Lloyd

Found it! https://www.ebay.co.uk/itm/323971527592

vinrads · 4th Apr 2023, 2:25 pm

Thanks for that Lloyd that looks familiar I think I used that to make some knobs for an Australian set ,it seems pretty strong not sure if it will stand up to the forces put on it by an Ekco A22 when only 3mm/5mm thick. I think fiberglass resin seems to be the way to go .the colour is immaterial as it will be colour matched painted Mick.

slidertogrid · 4th Apr 2023, 2:35 pm

I repaired a case from an AD65 in 2009. I used gauze to make the shape of the foot and then car body filler to make the shape. It has held so far, the repairs are of course visible if you look closely but up on a high shelf it displays well. I can't believe it was over 12 years ago !
https://www.vintage-radio.net/forum/...t=43412&page=2
Rich.

stevehertz · 4th Apr 2023, 5:28 pm

Quote:

Originally Posted by slidertogrid

I repaired a case from an AD65 in 2009. I used gauze to make the shape of the foot and then car body filler to make the shape. It has held so far, the repairs are of course visible if you look closely but up on a high shelf it displays well. I can't believe it was over 12 years ago !
https://www.vintage-radio.net/forum/...t=43412&page=2
Rich.

That looks an excellent repair. It would be nice to see a photo or two of it finished!

slidertogrid · 4th Apr 2023, 5:51 pm

The final pictures are on a separate thread.
https://www.vintage-radio.net/forum/...ad.php?t=43955
I was very new to the forum and the internet in general when I posted so I put the final part in 'success stories'.
I realise how much being on here has not only improved my knowledge of electronics but also my spelling and grammar!
rich

stevehertz · 4th Apr 2023, 6:10 pm

Quote:

Originally Posted by slidertogrid

The final pictures are on a separate thread.
https://www.vintage-radio.net/forum/...ad.php?t=43955
I was very new to the forum and the internet in general when I posted so I put the final part in 'success stories'.
I realise how much being on here has not only improved my knowledge of electronics but also my spelling and grammar!
rich

Excellent job Rich!

4th Apr 2023, 10:04 am	#1
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,761	Repairing the case on an Ekco A22 This is the case with the left foot missing ,I need to re construct a copy from a good case, I was thinking of using silicone rubber to make the mould which I have used before when making knobs, the question is what pouring resin do I go for bearing in mind the case thickness varies between 3mm and 5mm ,any suggestions welcome ,Mick.

4th Apr 2023, 10:19 am	#2
Lloyd 1985 Nonode Join Date: Jun 2008 Location: Coningsby, Lincolnshire, UK. Posts: 2,819	Re: Repairing the case on an Ekco A22 What colour is the case? If it’s black then there is some fire retardant potting compound that I have used, comes in black, so far I have only made knobs with it, and it doesn’t seem to shrink at all, no idea what it’s like for making larger areas yet though. I do intend to try making a bottom cover for a Murphy A100 with it at some point! I’ll see if I can find a link to the stuff.. Regards, Lloyd Found it! https://www.ebay.co.uk/itm/323971527592 Last edited by Lloyd 1985; 4th Apr 2023 at 10:21 am. Reason: Found the stuff…

4th Apr 2023, 2:25 pm	#3
vinrads Dekatron Join Date: Feb 2009 Location: Chesterfield, Derbyshire, UK. Posts: 3,761	Re: Repairing the case on an Ekco A22 Thanks for that Lloyd that looks familiar I think I used that to make some knobs for an Australian set ,it seems pretty strong not sure if it will stand up to the forces put on it by an Ekco A22 when only 3mm/5mm thick. I think fiberglass resin seems to be the way to go .the colour is immaterial as it will be colour matched painted Mick. Attached Thumbnails Last edited by vinrads; 4th Apr 2023 at 2:32 pm.

4th Apr 2023, 2:35 pm	#4
slidertogrid Octode Join Date: Apr 2005 Location: Peterborough, Cambridgeshire, UK. Posts: 1,898	Re: Repairing the case on an Ekco A22 I repaired a case from an AD65 in 2009. I used gauze to make the shape of the foot and then car body filler to make the shape. It has held so far, the repairs are of course visible if you look closely but up on a high shelf it displays well. I can't believe it was over 12 years ago ! https://www.vintage-radio.net/forum/...t=43412&page=2 Rich.

4th Apr 2023, 5:51 pm	#6
slidertogrid Octode Join Date: Apr 2005 Location: Peterborough, Cambridgeshire, UK. Posts: 1,898	Re: Repairing the case on an Ekco A22 The final pictures are on a separate thread. https://www.vintage-radio.net/forum/...ad.php?t=43955 I was very new to the forum and the internet in general when I posted so I put the final part in 'success stories'. I realise how much being on here has not only improved my knowledge of electronics but also my spelling and grammar! rich