Recent content by OldManAP

I would like to build a few Oxides. I have a KEP Mostortion clone on my main board, but I’d like to have a few more. Of course, CA3260’s are pretty hard to come by. I’ve read that one can substitute most other common opamps, but I’m wondering what would come closest to the original. I was...

See, now it gets more confusing to me. Because the GE-7 values are labeled 6.4K, but actually yield a cutoff frequency around 4K. The GE-7B values (which are different values than the GE-7) are labeled 4K, and yield a slightly different cutoff frequency which is also right around 4K. I’m still...

Ok, the values for the highest band on the MXR 6-band work out to just south of 2K, but they labeled it 3.2K. And 2K is pretty close to 70% of 3.2K. Do with that info what you will.

I just checked against the highest band on the MXR 10-band, which is labeled 16k. It uses the exact same type of filter but with different values. And the values they used come out to a cutoff frequency of 15.3K. A lot closer to the labeled 16K than the 4.13K and 6.4K of the Boss. So I kinda...

Based on @vladimirsky ‘s reply above, replacing C1 with 68n seems like it would probably be pretty close. Does that seem correct?

That’s what I got as well. So where’s the 6.4K come from?

Thanks so much for that, Robert! So I guess my next questions are: The pot value is more a function of loading, right? We usually see 250K or 500K in passive volume pedals, but 10-25K in active ones. I’m guessing these values work better respectively depending on whether they follow a buffer...

Not sure if this belongs in this subforum, apologies if I’m in the wrong place. I’m trying to better understand my volume pedal. It’s a Goodrich L10K active pedal. Unfortunately, I don’t have a full trace as I didn’t have time to remove the whole board to see the underside. But just looking at...

I’m pretty sure R10 isn’t involved, I think it is the CLR for the indicator LED. When a filter is in this configuration of wiper to cap to resistor, what sort of filter is it, and how is the frequency determined?

That I/O box is much cleaner inside than mine, lol. I accidentally ordered PCB-mount jacks. Soldering stranded wire to those little pins sucked.

My trick has been to stack it with an overdrive that most people complain has TOO MUCH bottom end: the Nobels ODR-1. The last few guitar gigs I’ve played (now, to be fair, they’ve been country gigs) I’ve mostly lived on the back pickup (split to single coil) of a Squier ‘51, Boss CS-3 always on...

The Benson was another one I considered. Also the ROG Peppermill. I know of at least one steel player that used a Sansamp Blonde after his dirt pedals for a long while, but I don’t know of a DIY implementation for that one yet.

No horn. Current amp has a single 12”, the amp I would like to upgrade to has a single 15” (preferred by most steel players). I might try playing with EQ a little more, but unfortunately I generally keep my EQ pedal set up as a dobro simulator, so I’d rather not have to monkey with the settings...

Duh, don’t know why I didn’t think of the Superbolt. Great idea, thanks!

Alright guys, I need some help figuring out what I can build that might solve a problem for me. I currently have a Lightspeed copy, an ODR-1 with a bass control, a Mostortion copy, and a modded Rat on my board. They work great with my guitars into a Blues Jr. But I also play pedal steel, and I...