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ok, that made me snort just now

EDIT: no offense, but do we even have ladies on board here?

Well, obviously. That's not me wearing them, I assure you.

For the ladies.

Here's my t-shirt idea.

Increasing C7 changes the corner frequency that the clipping in the overdrive section operates on. The stock value of 82n gives you about 128Hz. Increasing the cap to 330n pushes it down to 33Hz which is more suitable to bass.

Also, you should consider increasing the value of the tone cap, C14. I would try 10n. This will actually help prevent the oscillation as well as move the tone control range down. But, you might want to check over your soldering as well...make sure you do not have any solder bridges anywhere...this could also cause the oscillation problem.

The cap value changes should not cause any oscillation, but possibly the resistor value change did. Put it back up to 15k to see if that eliminates the problem. Instead, increase C7 from 82n to 330n.

Tangent: Anyone interested in a Pork Loin DIY project? I actually have a layout in the Etcher's Paradise folder. Not verified obviously.

Now if only Fender could be arsed to release a seven string Tele. Here's to hoping they will.

Hell yeah.

Okay, that is friggin hot. I don't care what anyone else says. It look badass.

I'll check into this. On second look, the positive side to the collector makes the most sense because it is the higher voltage source. But, I have built mine the other way and did not have any splats. To me that sounds more like a transistor bias issue.

In any case, I have two builds around I think. I will have a look at those tomorrow and let you know what I find.

C20 doesn't need to be there as you said. Perhaps it is just a design error.

I did get a few of the V3208 from SMB recently but have not tried them yet. These are from the batch that was supposedly QA'd by Ed Rembold, or whatever. But, I think they are also 5v unlike the BL's which are 10v or so. Or, maybe that doesn't matter that much.

It might a rotary. Dunno. In any case, it is worth checking out what a blend would be like there. I'll look into it an report my findings.

The thing that is curious about the BL3208 is that EHX is using them in the Memory Boy. So, I wonder what prompted the discontinuation since they must buy them by the ton (it takes four for each one). Maybe EHX is developing their own BBD? Who knows.

Just a heads up Brian....

Although they are still somewhat readily available... Belling has STOPPED producing the BL3208. They are only manufacturing the 3207 for now.

Oh yeah, I know. It's disappointing. But, they are still available for now through eBay etc. I got several good ones just a couple of weeks ago. I will also be posting an adapter board on OSH park so you can use the smaller BL3208a chips.

I really like the Drop but I'm still within the return window @ Sweetwater. It's really tempting...the Pitch Fork has some things on it I would definitely use.

Yeah, the way it is labeled on the DMM is confusing. To "modern" eyes it appears to be an blend control rather than a depth control.

For the rate, I've got it set up just like Scruffie mentioned. The stopper resistor I've picked is actually pretty high at 120k but it gives it plenty of range. It gets ridiculously fast. I think I will see if I have room for an LED indicator on it as well.

Also, Scruffie, you mentioned about running the clock and LFO on the same voltages earlier in the thread. Agreed. That makes much more sense. Luckily it is an easy adjustment. That was an oversight on my part. On the MN3008 proto it does not have an impact in noise or performance but there is no reason not to do this esp. if we start getting into split rails for different voltages on the BL3208.