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In Reply to: RE: My Grundig 4095 restoration (many photos) posted by 4season on September 16, 2007 at 13:26:55
I'm glad you posted the picture and links. I'm waiting on a manual to arrive before I start work on my Grundig. However, I have been thinking about it and doing research on the web. There seem to be a lot of choices in replacement capacitors for different reasons, including sonic qualites. I've seen those orange caps in several audio rebuilds and mods. Are they chosen for sound quality or some other reason?
I've decided that where there is a reasonable choice within in my budget and competence, I want to choose the component or upgrade path that leads to the best sound quality for my beauty. To do that, I will have to call on the collective wisdom which everyone in this little community so generously gives.
Thank you all in advance :-)
The technology of a sufficiently advanced civilization will be virtually indistinguishable from magic.
Arthur C. Clarke
Follow Ups:
"Orange Drops" have been in production for decades, and the 716P-series are probably the best of the bunch as they're polypropylene, not mylar. Good reliable parts, readily available in the appropriate values, and not hyped up as an audiophile part, so the prices are reasonable, yet they sound good.
I was sort of tempted to look for German makes like Wima or Roederstein ("ERO") but simply could not find the values I needed, and some items appeared to be out of production--no big surprise considering that Roederstein, Sprague and Vishay merged awhile back.
I've also incorporated a couple of Solen polypropylenes in place of electrolytics: They should last a lot longer, and Solen is one of the few companies to offer film capacitors in larger values--up to 200 uf or so.
The main B+ capacitor is still electrolytic, and I couldn't find twist-lock types to fit the existing cutout (USA types have different dimensions), but F&T's stud-mounted caps fit if if you enlarge the hole a bit.
This is probably a little premature. I found the picture of the underside on a website in the Netherlands. It is not very good but it is almost certainly the underside of my receiver. The other picture I took of my unit. I haven't removed my reciever yet. When I do, I'll post much better and clearer pictures of the underside.
The technology of a sufficiently advanced civilization will be virtually indistinguishable from magic.
Arthur C. Clarke
This is probably a little premature. I found this picture on a website in the Netherlands. It is almost certainly the underside of my receiver. I haven't removed my reciever yet. When I do, I'll post much better and clearer pictures.
The technology of a sufficiently advanced civilization will be virtually indistinguishable from magic.
Arthur C. Clarke
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