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Restoration Quad 303 restoration

Restoration projects
marantz123 said:
Why not use the photo transfer film method ....its quick and gives good results. MicroRobotics ( no affiliation) keeps something like this.
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This is what I am looking at as well as two members sent me some pictures of PCBs they made on the kitchen stove this way.
 
Homemade is definitely the way to go. It's not too difficult, plus you'll get the original phenolic-paper pcb material to boot. Profiling might be tricky though, phenolic-paper breaks quite easily, so go carefully! @Nchebe
 
Nchebe said:
Homemade is definitely the way to go. It's not too difficult, plus you'll get the original phenolic-paper pcb material to boot. Profiling might be tricky though, phenolic-paper breaks quite easily, so go carefully!
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Any idea where to get the original phenolic paper PCB material @Nchebe ? I know @Family_Dog recommended to steer away from this, but if I want to stick to original looks this might be the only way to go.

I see CEM-1 boards are more or less the same material, but is white in colour.
 
I last saw it at Communica and Mantech, but not sure if they still have?? Websites say they don't :vsad:
I'll scratch around at home and see if i have any... @Nchebe
 
ALF said:
This looks like an cheap and easy root not sure if this was mentioned before
www.ebay.com

Classic 45Wrms/ch amplifier PCB Quad 303 kit set of three pieces !! | eBay

Find many great new & used options and get the best deals for Classic 45Wrms/ch amplifier PCB Quad 303 kit set of three pieces !! at the best online prices at eBay! Free shipping for many products!
www.ebay.com
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Yip that is the cheap and easy route. Something I do not want to do as I want to keep as close to original on this project. Thanks in any case for the heads up!!
 
Out of the blue one of our fellow forumites contacted me and offered to help me redraw the PCBs electronically in CAD to obtain the required Gerber files. I am ever so thankful.

We are working on the regulator board at the moment and taking it small steps at a time to make sure the end product will be as close as possible to the original.

More news on this journey later!
 
You could send me the top cover of the tuner and I'll pop around to a Ceracote specialist. Might be able to match the color pretty close which will see me ordering a small 4oz tester from the States. These can be had in an air dry version which is different to the oven cure type I use. This will of course mean spraying all the covers just to be sure the color matches perfectly. Only caveat being the front panels being printed so I would not think those should be done. Worth a try, as ceracote simulates closely the pearlescent appearance of the Quad paint.

I'll not charge for the spraying if an option and a suitable color match can be found in their range. Guaranteed not to wipe off with ANY type of thinner or acetone :thumbs: @Schalk
 
Schalk said:
You could send me the top cover of the tuner and I'll pop around to a Ceracote specialist. Might be able to match the color pretty close which will see me ordering a small 4oz tester from the States. These can be had in an air dry version which is different to the oven cure type I use. This will of course mean spraying all the covers just to be sure the color matches perfectly. Only caveat being the front panels being printed so I would not think those should be done. Worth a try, as ceracote simulates closely the pearlescent appearance of the Quad paint.

I'll not charge for the spraying if an option and a suitable color match can be found in their range. Guaranteed not to wipe off with ANY type of thinner or acetone :thumbs:
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That sounds interesting, what is ceracote I've never heard of it before? @Skylark
 
Herman, If you need boards done, I can help with home-made PCBs. If you can send me a PDF or a graphics file I can do them. Single sided only, please!

I do everything manually so I cant do fancy holes or slots etc. No silkscreen layer either...

I spray the tracks with Kantakt SK10 which makes soldering a breeze.

Surprised to hear about Bosco, they have made thousands of PCBs for me in the past, with only 3 bad boards. But their attitude can be absolutely atrocious sometimes.

Here is a link to a project I made the PCBs for.

 
If you can be of assistance, it will be great. Another forumite is redoing the PCBs in gerber format. I am behind in my tasks regarding this and he is waiting for me!

PM me your details then I will be in touch!

Thanks again. :dop:
 
Hi Herman...

No rush!!! When things have settled down and you're ready... I did however find that piece of phenolic PCB stashed away in the depths of :angrywife: nightmare - my workroom... It is double- sided copper though. I'm sure we can get it smooth and polished on the top side once copper is etched off.
 
Nchebe said:
Hi Herman...

No rush!!! When things have settled down and you're ready... I did however find that piece of phenolic PCB stashed away in the depths of :angrywife: nightmare - my workroom... It is double- sided copper though. I'm sure we can get it smooth and polished on the top side once copper is etched off.
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Thanks for the heads up Lance. I have opened the files you have sent and will compare them tonight.
 
ghostinthemachine said:
A heads up on the original Bulgin power plugs ...

PX0631 | Bulgin Miniature Power Connector Cable Mount Socket, 3P, 3A, 50 V ac | RS

za.rs-online.com za.rs-online.com

PX0646 | Bulgin Miniature Power Connector Cable Mount, Solder Termination, 3A, 250 V ac | RS

za.rs-online.com za.rs-online.com
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Yep, those are the ones. Thanks!

The Quads however came out with a 90? plug top which is this one on Mouser: https://www.mouser.co.za/ProductDetail/171-PX0430-SE

I think I will go for the original look.
 
Hello Herman? Quite sure you are not really your own Goggie...

I am very difficult to get hold of on the phone. Rather just pop me an old fashioned email at [email protected] and I'll respond in kind? Let's get this off the ground.

Regards
Schalk
 
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