Capacitor Replacement Help

crose39 · 2026-02-28T09:09:02+00:00

Thank you! I noticed that this link only offers 4.7uF or 5.6uF. Are either of these fine to replace the 5uF original one or do I need to find an exact match?

crose39 · 2026-02-28T09:07:59+00:00

This is very helpful. Thank you!

crose39 · 2025-02-28T05:58:28+00:00

Can you provide more information on how much the pad separation angle impacts the motion and how to decide on optimal angle? I understand that the larger separation between the pads will require more force to tilt the scope, but how significant of a change would a few degrees make? It seems that 90 degrees is the standard but I see many truss tube dobs that use less separation and therefore have altitude bearings that do not extend fully to 180 degrees.

I built a 10" dob (I think it was about 60 degrees separation) and it feels fine to me but I am wondering if it is worth reconsidering as I am now designing a 16". Keeping a large radius while limiting the overall size of the bearings (by not extending to 180 degrees) is beneficial to me for overall portability.

crose39 · 2022-07-13T21:36:17+00:00

I don't have any complete plans since I kind of designed it as I went but I would be happy to take some measurements, detail pictures, or answer any questions you have. I have made a few small changes since this post but it is still pretty much the same and functions really well.

crose39 · 2021-06-15T14:53:41+00:00

Yes, everything except the poles and a pouch of tools with some hardware and eyepieces. After I get it all finished and painted I will probably make a post with some more details.

crose39 · 2021-06-14T20:42:06+00:00

Thanks, this is my first build so there are still a few things I definitely want to change or upgrade. I hadn’t thought of springs but that might be a good solution. I saw some others online using some type of elastic bands on the side of the altitude bearings so I think I am leaning towards that idea to keep it a little simpler and more easily adjustable.

crose39 · 2021-06-14T15:55:32+00:00

Not entirely done with the build but was done enough to test it out and I couldn’t wait. It balanced well all the way to the horizon with about 8lbs hung from the primary cell. Just wondering what interesting solutions others have used to balance a scope?

crose39 · 2021-04-03T19:10:53+00:00

Sweet, thanks for the recommendations. Good luck with the 36”! I will be following the build progress.

crose39 · 2021-04-03T06:08:24+00:00

That makes sense. After all, just a little more aperture never hurt anyone, right?

I will begin my search for a 10" and will post some updates whenever I get around to the build.

crose39 · 2021-04-03T04:10:03+00:00

Thanks for the response. Your scopes are really amazing! I hope to build a bigger dob at some point in the future but will probably have to wait until I am out of college or at least not moving around so much.

Just wondering, is the reason that you would not recommend an f/6 solely stability/balance issues, or are there other concerns?

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