Output Caps For Dehavilland Ultraverve

Steven - Which Duelunds did you use?  I see that there are a couple of design variations. Kara, as well as Bill (grannyring) recommended 2.2uf.  Did you use a bypass cap as well?  The Duelunds are rather large, any issues fitting them in the chassis?  I agree that Kara, in addition to being a gifted designer, is a consummate professional and has been extremely helpful and honest... 

Hi, I actually just took a few photographs of the actual install.  Yes there are issues with fitting them in but they are minor.  Tell me how I can get the pictures to you and I will shoot them over.  I'm not the most computer genius.  My email is spfnever@aol.com. Steven

No issues at all going into my friends mklll. Very easy to do. When I say no problem, I mean fitting the Jupiter and Duelund bypass. The Duelund silver foils are very small and the Jupiter’s fit.

The Duelund CAST is a great cap, but a 2.2uf value will be huge and cost you a Fortune! $900 for the two 2.2uf caps! My suggestion gives you as good sound quality for a lot less. The Duelund RS cap will sound great, but not as good as the Jupiter and Duelund silver foil combo. 

Another good choice if you don’t want to parallel caps is to go with the Jupiter copper foil caps, 600vdv. Get the 2.2uf value. Sonic Craft sells them for $140 each or so. They are spectacular. Right up there with a Duelund CAST in this position. Make sure you order them matched within 1% of each other. Dimensions are......

1.562″ X 2.125″

Check to see see if they will fit.

Thanks, Bill.  $900 for two caps, in addition to being rather pricey, does seem like a bit of overkill for a $3K preamp. Or maybe not.  I have no objection to paralleling the caps and will probably wind up using your original suggestion.  Would I be looking at an excessive break in period?
-Brad