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In Reply to: RE: Cathode bypass cap value 300B SET question posted by beto1 on August 09, 2015 at 09:03:41
Why get hung-up on buying audiophile "boutique priced" capacitors? What about generic caps, or industrial caps, film types ??The DIY trick and challenge is to "out-do" the boutique priced caps with generics, at 1/20th the price !! Maybe, in some cases, employ NOS generics, no longer manufactured !! Yes.
It will take more than one film cap ( bypassing ) intelligently, to have a shot at that. I just went through much of this, with my Type 45 SE amp build the last couple of months.
You can use this Forum's "search" engines to look up previous posts on film cap bypassing by the really good builders, such as Thorsten Loesch's in 1999-2000, and Dennis Fraker's, more recently. Its in here if you dig some. Then, build, listen, decide for yourself. Have fun.
Jeff Medwin
Edits: 08/10/15Follow Ups:
The trick is to use methods that will best achieve the your desired outcomes for the build.I try to work from a well researched, solid base then voice as minimally as possible. Others work from (what I might think is) a less ideal, perhaps cheaper, base and voice heavily. Neither is right or wrong. What matters is that the approach satisfies the project objectives: practical, sonic, personal and otherwise.
Regards,
91.
"Confusion of goals and perfection of means seems to characterise our age." Albert Einstein
Edits: 08/11/15
Seems like you are justifying yourself. We each may not have the proper experience, to judge " what is a proper base ". Our thinking ( both of us ) could be delusional.Hence, subjective listening rules in my book. How it sounds, to the end-user, is what matters the most !!
Jeff Medwin
Edits: 08/13/15
Hello Jeff,
thanks for your advice.
Well, my amp was coming with the Elna Cerafine for the cathode bypass. I bought the BG when still were in production at a discount price. Sounds wonderful, very open and detailed. The Elna, a little more obscure, but maybe more "musical" and soft on the high frequency. I'm not too much friend in experiment with dozens of capacitors or swap a lot. This two caps was the only ones on more than ten years. One reason to this is that every cap or resistor that I bought for my amp, has to be imported , so the cost never is too cheap, so I have prefered to use, in the first place, the same than the manufacturer. Of course, there must be a bunch of extremely good and cheap caps out there and maybe now is the time to try some.
Regards
I have been experimenting with that recently. Contact me by email, address is above, and we can discuss inexpensive possibilities. No ONE cap will play all frequencies, and get all the " vibes" of the music, linearly. Hence, mutiple film bypassing of Rks.
Jeff
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