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Capactiors question

Posted: Oct 23rd, '15, 03:53
by Masuto
Hi there, i know the original had greenie poly caps. By default, people go for those in their builds. But my stash of greenies, bought from the usual suspects, tadya & co, doesnt measure up to specs most of the time. I have the feeling that maybe Roland's greenies might have been a tad more accurate..i could be wrong. What do you veterans, Yocto 808 builders have to say on the matter? Any other option for caps? Like.. NOS sprague orange caps, etc?

Re: Capactiors question

Posted: Oct 23rd, '15, 07:04
by zephyrin
What do you mean by doesnt measure up to specs most of the time ?
for example 104J you will found around 100nf with 5% tolerance -> between 95 nf and 105 nf you never found 100 nf

Re: Capactiors question

Posted: Oct 23rd, '15, 15:01
by Patrick
you dont need greenies.
normal polyester caps are fine too - i have tried it.
you found in other DIY forums infos about differences between greenies and others too.
more important is the usage of cermet or metal resistors AND the u4558 are different from typ to typ.
i have tried a 20year old u4558 and a new one - the gain was different.

as you know: every TR-808 sounds different

Re: Capactiors question

Posted: Oct 23rd, '15, 22:45
by Masuto
zephyrin wrote:What do you mean by doesnt measure up to specs most of the time ?
for example 104J you will found around 100nf with 5% tolerance -> between 95 nf and 105 nf you never found 100 nf
Im talking about 180 nF caps that measure 150 nF and
150 nF caps that measure 120 nF!

Re: Capactiors question

Posted: Oct 23rd, '15, 22:47
by Masuto
Patrick wrote: you found in other DIY forums infos about differences between greenies ...
I come from the guitar pedal industry and i am obsessed with caps.. Thats all

Re: Capactiors question

Posted: Nov 25th, '15, 13:07
by Masuto
Hope someone can help-
In the hihats section, i put 27nF caps instead of 22nF caps.
Will they work anyway?
Cheers

Re: Capactiors question

Posted: Dec 14th, '15, 21:09
by RobyMX
Masuto wrote:Hope someone can help-
In the hihats section, i put 27nF caps instead of 22nF caps.
Will they work anyway?
Cheers
I think it's better to use the recommended values...
Ciao

Re: Capactiors question

Posted: Dec 14th, '15, 21:12
by RobyMX
RobyMX wrote:
Masuto wrote:Hope someone can help-
In the hihats section, i put 27nF caps instead of 22nF caps.
Will they work anyway?
Cheers
I think it's better to use the recommended values...
Ciao
Anyway ,the difference is 5nF, about 20% of capacitance increase.