Bottlehead Forum

Bottlehead Kits => Legacy Kit Products => Paramount => Topic started by: Paully on February 23, 2011, 11:35:11 AM

Title: Soft Start Driver Board .1uf 630V capacitor
Post by: Paully on February 23, 2011, 11:35:11 AM

If my memory serves there was a .1uf 630V cap on the old board that it was worth upgrading.  I replaced it with a .2uf 600V teflon.  There is a polypropylene cap on the new board same value, can I, should I, reuse the teflon on the new board?  Thanks!

Paul

Title: Re: Soft Start Driver Board .1uf 630V capacitor
Post by: Paul Joppa on February 23, 2011, 01:34:55 PM

The value is chosen, along with the associated resistor (Cc and Rc), to stabilize the internal feedback network. They are not precision parts, but I don't recommend using different values. You can try it, it might work out well ...

Title: Re: Soft Start Driver Board .1uf 630V capacitor
Post by: Paully on February 23, 2011, 02:04:40 PM

Eh, I will use the proper value.  Upgrading the cap worth the trouble?

edit: I went and looked in the amps, I actually did use a .1uf 600V.  So no reason not to use that again.  Thanks!

Title: Re: Soft Start Driver Board .1uf 630V capacitor
Post by: debk on July 02, 2012, 01:42:42 PM

I have the same question.  I have seen pictures of this capacitor upgraded with "boutique" capacitors.  Is this a worth while upgrade?


Thanks

Debra

Title: Re: Soft Start Driver Board .1uf 630V capacitor
Post by: Doc B. on July 02, 2012, 01:46:36 PM

It gets into the realm of subtle changes but yeah, it does seem to make a small difference.