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Cabinet and Chassis Restoration and Refinishing For help with cabinet or chassis restoration (non-electrical), please leave a message here. |
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18th Feb 2018, 6:33 pm | #1 |
Heptode
Join Date: Jan 2008
Location: Durham, County Durham, UK.
Posts: 826
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Back panel repair
Hi
I’m restoring a radio and the back has the usual dropper damage. I’d like to retain the back so thought this option may stabilise the back and cover the large hole. It’s a Teflon mat made for BBQs and only £1.78 for two 40cm x 30cm sheets so I thought it was worth ago. Just wondering what others think, a suitable repair or have I missed some obvious reason why this is not a good idea? Thanks for reading. John |
18th Feb 2018, 7:50 pm | #2 |
Retired Dormant Member
Join Date: Jan 2007
Location: Westbury, Wiltshire, UK.
Posts: 2,451
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Re: Back panal repair
Modern matting would not look right on a vintage set.
If it was me I would cut the damaged section away completely and leave a square hole to be filled with part of an old back cover then Araldite it in place. Most of these vintage sets use very similar material. |
18th Feb 2018, 8:51 pm | #3 |
Guest
Posts: n/a
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Re: Back panal repair
Well, it's not original or period, nevertheless a reversible, neat and safe repair. I like it.
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18th Feb 2018, 9:10 pm | #4 | ||
Heptode
Join Date: Jan 2008
Location: Durham, County Durham, UK.
Posts: 826
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Re: Back panal repair
Quote:
Quote:
I've not looked at the best way to attach it yet, I'll probably use a few blobs of Araldite. John |
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18th Feb 2018, 9:35 pm | #5 |
Tetrode
Join Date: Jan 2016
Location: Jarrow, Tyne and Wear, UK.
Posts: 81
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Re: Back panal repair
I've sent a PM, also what radio is it from?
Cheers Neil Last edited by neil24-7; 18th Feb 2018 at 9:37 pm. Reason: Add more text |
18th Feb 2018, 10:26 pm | #6 |
Heptode
Join Date: Jan 2008
Location: Durham, County Durham, UK.
Posts: 826
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Re: Back panal repair
Hi Neil,
Thanks for your interest, it’s a Portradyne Universal. https://www.radiomuseum.org/r/portadyne_universal.html I’ve not received a PM from you yet. John |
19th Feb 2018, 12:41 am | #7 |
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,274
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Re: Back panel repair
that's a sweet little set, no wonder the dropper's burned the back, it looks rather close. Is it the original dropper? The one in the radiomuseum pic looks like a TV polo mint resistor blobbed in, difficult to tell. Is yours the same?
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19th Feb 2018, 2:36 am | #8 |
Banned
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Location: Middlewich, Cheshire, UK. & Winter in the Philippines.
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Re: Back panel repair
I think its a grand idea. Its quite unobtrusive, fulfils the safety function, and can be removed. Excellent.
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19th Feb 2018, 8:38 am | #9 | ||
Heptode
Join Date: Jan 2008
Location: Durham, County Durham, UK.
Posts: 826
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Re: Back panel repair
Got it now, thanks Neil I’ll PM you later.
Quote:
Quote:
John |
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19th Feb 2018, 12:36 pm | #10 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,536
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Re: Back panel repair
That set looks like a prime candidate for a capacitor dropper or at least a diode assisted setup!
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19th Feb 2018, 1:02 pm | #11 |
Moderator
Join Date: Dec 2010
Location: Exeter, Devon and Poole, Dorset UK.
Posts: 6,879
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Re: Back panel repair
I like it
Simple, reversable, cheap and quick. And after all it's called the back for a reason Cheers Mike T
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Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk |
19th Feb 2018, 3:32 pm | #12 | |
Heptode
Join Date: Jan 2008
Location: Durham, County Durham, UK.
Posts: 826
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Re: Back panel repair
Quote:
Exactly! John |
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21st Mar 2018, 11:57 pm | #13 |
Heptode
Join Date: Jan 2008
Location: Durham, County Durham, UK.
Posts: 826
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Re: Back panel repair
Hello,
Just thought I’d complete the story. I’ve been sidetracked lately but managed to finish the radio tonight. I had some issues with a broken wire on a coil which was a challenge to fix and the dropper which was set to the wrong voltage had a badly corroded connection. I bought it mostly for its looks but after changing the Hunts and couple of out of spec resisters it works well and the performance is quite good for a 50’s TRF. And the ‘fix’ for the back does as I intended. John |
23rd Mar 2018, 9:00 am | #14 |
Hexode
Join Date: Jan 2018
Location: Portsmouth, Hampshire, UK.
Posts: 430
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Re: Back panel repair
I've used something similar in the past to "repair" a speaker grill but mine were a finer mesh & a coppery colour, the local Poundland of all places!
As you say, functional & does the job it was intended for, can't see a downside there! |
23rd Mar 2018, 11:54 am | #15 |
Heptode
Join Date: Apr 2016
Location: Cheltenham, Gloucestershire, UK.
Posts: 875
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Re: Back panel repair
Hi Stitch - in that particular burnt-out location you may wish to [re?] consider the use of a piece of new 'plumbers mat' i.e. a non-asbestos cloth-like material that is used for wiping pipe joints subsequent to lead soldering? I've use this material with great success on the restoration of various heat shields etc.
(It's available from most plumbers merchants ...)
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23rd Mar 2018, 12:34 pm | #16 |
Heptode
Join Date: Jan 2008
Location: Durham, County Durham, UK.
Posts: 826
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Re: Back panel repair
That sounds like a good idea, certainly something to consider. The Teflon mat is heat resistant but if it was a set I intended to use a lot I'd look at other options, as it is it will only get occasional use.
John |
23rd Mar 2018, 2:11 pm | #17 |
Heptode
Join Date: Apr 2016
Location: Cheltenham, Gloucestershire, UK.
Posts: 875
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Re: Back panel repair
P.S. Lovely little set !!!
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Red to red, black to black. Throw the switch and stand well back! |
23rd Mar 2018, 2:51 pm | #18 |
Heptode
Join Date: Jan 2008
Location: Durham, County Durham, UK.
Posts: 826
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Re: Back panel repair
Yes I think it looks great, really pleased how well the Bakelite came up.
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