Pulse Film Caps

[BRGPollen]

This is probably a completely noob question, but can I use these caps for the smaller values ie 470p??

Is there any advantage in using these or should I just look in the silver mica / ceramic world??

Thanks again,

"B"

[Haberdasher]

They should be fine.  I've used some 1n pulse caps without any issue.  I don't think there's any advantage to using them over other types of caps in a low voltage pedal unless the pulse cap has a tighter tolerance.  Film caps sound pretty good though, and they are usually cheaper than silver mica so I might use them.

I think the main difference between pulse film ad regular film is  that they can withstand high pulses of current without the 2 halves of the cap fusing together and short-circuiting.  Or something like that.

[BRGPollen]

El Dudarino,
     Thanks for the reply.  I've been meaning to get back at you about the boards I bought.  TOTALLY cool.  The Serendipity is one of the drive sounds I've been hearing in my head but couldn't achieve until now!!.  I'm still finishing the Krank.  I had a brain freeze moment when I was ordering and didn't get the 470pf for it.

     Your boards are great!!  Definitely had to up my soldering skills a little though!  The copper will wick my solder like  a thirsty camel!  Thanks for being such a value add here on this forum!

"B"

[Haberdasher]

thanks barrett, glad you like the boards!   as usual madbean should get most of the credit though.
good luck with the pulse caps, let me know if they work out.
btw, I just built a serendipity too.  what opamp did you go with?  I didn't have ad712 so I tried tle2072, op2134 and tlc2272.  I believe I liked the 2272 the best.

[BRGPollen]

     Mea Kulpa,   I should make this blanket statement that my respect for his majesty the grand Bean goes without question.  But for the sake of being official I will offer my humble gazillion thank you's to the Bean here and now  

    As far as the Op Amp I liked the OPA2604 the best and I changed the input cap to a 33n !!  My dreamy creamy drive.

"B"

edited for the correct value of cap 1 in my version.