Messages

Thanks Brian!  That's a good point on the current-restriction-benefit on the +9v supply.  I wouldn't have thought of that.

I was mostly worried about clock noise from the IC because of the ol' 1044's reputation, but a little more reading has laid that concern to rest.  I'll probably use an LT1054 - it's the same price as a 1044 from my supplier anyway.

Hi all,

I haven't experimented with charge pumps in the past but I'm designing a circuit that needs a little extra headroom and good noise-free power.  I'm considering using a Road Rage to provide either +/-9v (and run it as a bipolar supply) or +15v regulated (and set the bias with the classic voltage divider method).

My question is: the -9v tap on a Road Rage board has a simple 10uF capacitor on it for filtering, which... doesn't seem like a lot.  Is the +/-9v bipolar supply going to be noisier than the 15v coming off the 78L15 regulator?

Those would certainly be the berries in question!

I've never been to Yorkton but I see that there is a Co-op, so it's conceivable that I might end up down there for a site visit some day if they decide to renovate or build another store.

Hullo!  New to the forum.  Sorry if this question is in the wrong place.  If it is, please redirect me to the appropriate sub-forum...

The Peacekeeper circuit looks very similar to the BSIAB II, which I built a few of many years ago.  How similar (or different) are the two designs when it comes to tone and feel?  Are there any good demos I could check out?  Maybe I've just been looking in the wrong places, but I'm having a hard time finding any.

I live in the city that is named after a moderately tasty (but highly overrated) berry!

Longtime DIYSB / FSB member, occasional MBP lurker.  I've built kits from GGG, BYOC, boards from MadBean and TonePad, and an awful lot of perfboard projects.  I've worked as a preschool teacher, rapid-deployment mobile sand silo designer, boutique bass designer / assembler, and right now I design stores for a federation of co-operatives (that should be a pretty big hint for fellow western Canadians) with well over 600 locations.

What's the best sub-forum to ask questions like "How does a Peacekeeper compare to a BSIAB2"?  I'm having trouble finding demos of some of the custom MadBean designs, and living in Canada makes pedal-building an expensive hobby so I try to be pretty careful with my purchases.