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31st Aug 2007, 3:32 pm | #1 |
Dekatron
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Roberts R606 Speaker Grille
Could anyone advise on the correct way to remove the metal grille from the case of a Roberts R606, please?
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31st Aug 2007, 3:53 pm | #2 |
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Re: Roberts R606 Speaker Grille
It is necessary to remove the top and bottom trim strips first . These are a press fit into the case. Then the main grille is glued in place. Care must be taken not to introduce folds into the trim or the grille.
I have had success by following hints I received on here. The first tip was to ease a steel rule under the length of the trim to give it support while it is carefully removed. I then followed Howard's advice and softened the glue with a hair dryer. The grille came away fairly easily without bending. Perhaps I was lucky. Maybe others will have other suggestions in case next time I need to do it I am not as lucky. Best of Luck |
31st Aug 2007, 8:50 pm | #3 | |
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Re: Roberts R606 Speaker Grille
Quote:
My first thought was just to prime the aluminium (after removing the remaining paint) and spray it all black. Then I got to thinking how I could get the thin black lines in, as it was originally. Any suggestions on this? If I were to use a candle or wax-crayon and a ruler, and rub wax in thin strips before painting, then melt off the wax, would this work? Any paint suggestions? Plasti-Cote? Vehicle aerosol spray?
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31st Aug 2007, 9:01 pm | #4 |
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Re: Roberts R606 Speaker Grille
Personally, I'd remove all the black paint (with an old pan scourer and some Cif/Jif) and leave it at that
Worked well for my Hacker Democrat which suffered from the same problem. Last edited by Nickthedentist; 31st Aug 2007 at 9:21 pm. |
31st Aug 2007, 9:19 pm | #5 |
Rest in Peace
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Re: Roberts R606 Speaker Grille
One way of doing it would be to use some fine masking tape, something suitable seems to be available here:-
http://www.pinstripinguk.com/tapes.htm Do Roberts still stock new grilles for these sets? Regards, Mick. |
31st Aug 2007, 10:50 pm | #6 | |
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Re: Roberts R606 Speaker Grille
Quote:
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1st Sep 2007, 8:41 am | #7 |
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Re: Roberts R606 Speaker Grille
I have a recollection that when pcbs were being introduced, draftsmen had reels of very narrow tape. This was used to produce master drawings with tracks thicker than drawing pens would produce. Some of the widths were very close to the width of the bright bars on these grilles.
They may not still available but as I have never had the nerve to try this I have not looked. So far my sets are either disasters and I replaced the whole grille from a basket case or only slightly blemished. Perhaps I should persevere a bit more as using these as a mask should make spray painting feasible. |
1st Sep 2007, 8:46 am | #8 |
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Re: Roberts R606 Speaker Grille
I did this with a Hacker using masking tape, which I stuck on a glass sheet, marked the ends and ran a ruler and knife down to get the narrow strips.
I was thinking that there might be other ways of achieving this - there used to be (and maybe still is?) something called Circuitape. This was a black adhesive tape used for masking PCBs prior to etching them. You then pulled it off. Maybe this could be used as a permanent black stripe, or used as a resist to spray the grille black?
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Mike. |
3rd Sep 2007, 7:13 pm | #9 |
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Re: Roberts R606 Speaker Grille
Hi,
I did this masking job on my R600 using 3mm car trim tape from my local car accessory shop - it was old stock however, I don't know if they make it for cars now. Alternatively a model shop would probably have it, used on model planes. Don't bother removing the grill, I did mine in situ, just masked the rest of the radio thoroughly. I used RS matt finish paint and then gave it a final coat of clear lacquer. DO HOWEVER REMOVE THE MASKING WHEN THE PAINT IS STILL DAMP, THE PAINT WILL FLAKE OTHERWISE!
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