Quickie mods

[earwaxxer]

yep, the Quickie 1.1 has some upgraded stuff that we all have been playing with since the first one came out. Many of us have switched out the electrolytic for a film. The value is not critical until you get below 50uf or so. Much lower than that and you could have some bass rolloff.

[adamct]

Thanks for that suggestion, Eric. So basically I would apply the tape to one end of the caps, thread the leads through a hole in the chassis, and then just stick the caps on their respective ends onto the chassis? I might put a black cable tie around the top of the caps, just to hold them together and prevent the caps from splaying outwards. Just to confirm, you think that would hold long-term (at least more than a year)?

And just to confirm, I assume this is the product you are referring to? http://www.amazon.com/3M-03615-Scotch-Mount-Molding-Tape/dp/B000BO9L00/ref=sr_1_7?ie=UTF8&qid=1370444261&sr=8-7&keywords=3m+super+strong+automotive+attachment+tape

Thanks again for the suggestions. If this works, it will be a much simpler and cost effective solution than anything else I might have cooked up...

Best,
Adam

For anyone who is interested (probably nobody), I checked with 3M and their 06834 tape (they call it "Automotive Acrylic Plus Attachment Tape") is 30% stronger than their "Super Strength Molding Tape" (03609 or 03614) that I linked to in my earlier post. As an added benefit, it is very slightly thinner (not narrower).

Best regards,
Adam

[4krow]

Adam,

  Just as an idea for the caps, I once used a Sorbothane footer under the cap, and the leads held the cap onto the footer. It was a 3/4" size, and looked. Eric has poster sized photo of it mounted to the ceiling of his bedroom...

[adamct]

That idea actually made me laugh out loud...

I'm hoping the new caps for the Crack power supply will have arrived today. If so, I'll try to post some cap porn...

[denti alligator]

I have some extra Russian teflon caps that I was thinking of putting in the Quickie. 200V, 0.01uF. Will these work or no?

[adamct]

I suppose you could use them to bypass the 2.2uf caps on the outputs...

[denti alligator]

I suppose you could use them to bypass the 2.2uf caps on the outputs...

aren't the coupling caps the key ones to replace, though? what values do I need to look for? I would spend in the $30-40 range. Suggestions?

[adamct]

The stock caps are 1000uf electrolytics. You can go down as far as 56uf or so with film caps. You could get a pair of Dayton Audio 68uf / 250V metalized polypropylene caps from Parts Express for about $35 plus shipping (for a pair). Audyn Cap 68uf / 400V caps are about the same price.

[earwaxxer]

Hey Sam ---
The coupling caps are the 2.2uf. Those are the ones you want to put your bucks into. You could try "bypassing" them with a small value like you suggested. I would just get a higher end 2.2uf and go from there....

[denti alligator]

Hey Sam ---
The coupling caps are the 2.2uf. Those are the ones you want to put your bucks into. You could try "bypassing" them with a small value like you suggested. I would just get a higher end 2.2uf and go from there....

Gotcha. You like the Mundorf, no? Which one do you recommend?

[earwaxxer]

I have the Supreme Silver/oil. I like them. You could try a supreme to see what you think, or for minimal bucks try the new EVO aluminum/oil. I have them in my speaker crossover now. I like um! I dont think they will be as "high end" sounding as the silver/oil IMO. Its good to get a few examples and experiment. I have had those 2.2's in just about everywhere you can think of.

[adamct]

I vote for these. Act quick before Eric beats you to the punch!

[charger]

which value is better to bypass coupling 2,2 mf caps?

[adamct]

I believe Paul once said that you can use anything with a capacitance value from 0.5% to 10% of the cap you are bypassing, but the common practice is to go with 1%, at least as a starting point. So .022uf or .02uf. You want a voltage rating equal to or higher than the cap you are bypassing.

[charger]

I believe Paul once said that you can use anything with a capacitance value from 0.5% to 10% of the cap you are bypassing, but the common practice is to go with 1%, at least as a starting point. So .022uf or .02uf. You want a voltage rating equal to or higher than the cap you are bypassing.

ok thank you