Hi,
I'm looking for a schematic of Electro-Harmonix's Bassballs envelope filter. I only found one which was somehow hard to read/understand so maybe someone could tell me if there's a better one out there.
By the way, has anyone ever built this pedal?
Thanks,
Fat Mike
Check the schematics2 section (which was intended for posting schems, as opposed to this forum which was intended for discussing them) for a link.
I actually have one here right now, so if there's any confusions I might be able to clear things up
Check mark hammer's site, he has a complete article about building a clone of this pedal and there where a schematic too.
http://hammer.ampage.org/
Sorry, I can't point you to the schematic. But...
I'd bet that you might be able to pick one up (the actual pedal, not the scheme) on eBay for very close to what the parts to build one from scratch would cost you.
Bringing the two trim pots off of the PCB as external controls and adding a wet/dry blend control would be my vote for the two most worthwile mods to do on a bassballs.
~ Charlie
Quote from: FatMikehas anyone ever built this pedal?
Yup. Just ironing out the bugs right now in fact!
Questions?
It was pretty easy to put together. But like moosapotamus said, they're dirt cheap and it may be worth just buying one! When I tallied up cost of parts, it came to about AUD$50. That's not including the PCB, nor my time and effort. They go for around AUD$200 brand new!!
So, if you're planning to modify it, it may still be worth doing, but if you just want it bog standard think about buying the real deal (http://www.ehx.com/ehx2/Default.asp?q=f&f=%2FCatalog%2F19%5FFilters%2F04%5FBassballs).
I used the schematic from stonedtone. I redrew it in Protel (http://www.protel.com.au) so I could do a PCB layout. I can send you my version if you would like...
After looking at that original Electro-Harmonix schematic from http://hammer.ampage.org/ for a while I guess that I might be able to rebuilt it (which doesn't mean that I understand the circuit :D ). I think I'll try to built the pedal from that schematic, although it's not scanned that well.
However I cannot find an article at hammer.ampage.org, just a ZIP package with schematics.
I also wondered how much I'd have to pay for the Bassballs on EBay, but I didn't even find it at Ebay Germany (yeah, I'm from Germany :) ) and I don't want to buy it from abroad, as I prefer building it myself instead of paying like 10$ for shipping. But after counting all parts together I figured out that this effect won't be as expensive as I thought (pretty cheap instead), only about 10$ without switch I think.
@moosapotamus: Modding this effect could really be a good idea, as I also don't like the trim pots on the board. That's probably why I'm going to build it.