@robertjay
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Well I thought I could edit my replies, guess I can only add to… Turns out the 1 good chorus circuit is actually a lil analog chorus from BYOC. The 2 that boost the signal are both Mini Me.
And if the resistors are already 33k as they should be…. Perhaps I can increase that value a little and see what happens? I have 2 out of 3 mini me’s that boost the signal.
My Man. Thank you. Will do. I have it in a combo build right after a Boogie 57 circuit, which surprisingly is a little held back in it’s output compared to the boost I’m getting from the Chorus. I’m about to swap out with another project that has this circuit to see if it’s just a circumstance of being in this particular combo box… But will def check on those resistors. Thanks!!!
It’s out for demos and testing now. I took some flack from the know it alls… But they’re right, this album didn’t have a dual Rec Mesa. OK. But it’s super close and sounds great. If I put the black album cover on the pedal, I’ll get hate for that album instead. Hahaha. More to come.
Just keeping you guys in the loop. What a great build./ We are so happy with what we pulled off. The boogie 57 really cranks. Thanks!
Not much of a plug as much as sharing the link, but if you’d like to see where my GuitarPCB parts and boards go…
https://www.facebook.com/KillDozer-Pedals-By-Robert-Jay-112534230887383
I’m happy. Are WE happy? Yes I noticed The biasing. 8.4 exactly! Sounds great. The A250k pot was the way to go for the gradual gain. I’m glad I asked in the first place. I feel like family now. Now as far as Version 2.0 is concerned, We can rename it the Robert Jay’s Boogie 57, Right?… Hahahaha. Gentlemen. Thank you. This Boogie 57 is going in my next Signature Sound Series Metallica Box. Should pair well with a Tube Screamer circuit for some James and Kirk tones.
How are we on the Transistor biasing through all of this? I still have Q3 at 8v, that’s as low as it will go with the trim at min.
So, have we eliminated the resistor across 1&3 of the gain pot? And the resistor off of leg 1 is still a 10k?
I’m just getting back to this…
The mentioned 3k9 becomes 100k is what? The R11 we messed with earlier?
When installed, the pot with 9.1k on lug 1 reads 260k across 1&3. but I don’t think we were looking for this value. This also doesn’t have a very noticeable change in gain, sounds like less gain overall. I liked it as a high gain monster earlier. But will keep on …
The other pot with the 33k on lug 1 also reads 260k across 1&3 too. That must be the circuit affecting the reading. But this was the one that got me 320k/330k between 1&3 when OFF the board. And also has little noticeable change up and down the gain pot. I’m going to bring 1 back to the original circuit and keep 1 for further trials.
So, here we go. I am learning and swapping resistors. using 2 B500k pots for comparison. 500k pot with R1M across 1&3 gives me 280k, with R9.1k off leg 1 gives me 290k. Another 500k pot with the R1m gives me 290k. I used 2 pots as they have been known to swing within their tolerances. So, trying to get 330k on the meter, We’re doing this with the pot OFF of the pcb? Because mine are off, should it be wired up? IS that what the extra R on the 1leg is helping achieve? Or should I get that resistance with the pot off? Because if so, I needed R33k between lug 1 and the pcb. FYI. Will be trying both in the mean time.
Hi hey and hello. Thanks for further including me in the trials for the new and improved V2. Now, recapping a few details. I missed that you specified the Gain pot as B500K. I had replaced and built another with a B1M and C1M. Did you want me to use a 500K and bridge a resistor? Or change the resistor value to go with the 1M Pot? 2M resistor on the 1M pot? Double the 1M r with a 500K pot… Simple resistor math? That’s 1…. As far as my clock references, I apologize. 7:00 is off and …. wait. 4:00 is full on? Well that’s not symmetrical. On the opposite sides of 6 o’clock, 7 goes with 5 and 8 goes with 4. haha. I’ll meet you in the middle. If you say 7 o’clock is min, then 5 o’clock is max. I looed up some nerd stats to help myself out with that. I found that a typical pot has a shaft turn range to almost 300 degrees. That’s about between 5 o’clock and 7 o’clock. So with that… With Gain at min, using the original B1m pot with and without the R1M, as soon as you move the pot from 7 o’clock, by the time I get to 8 o’clock, my ears hear no difference past that all the way up to max. Again, maybe just me and my ears. Also, because you also mentioned pickups, I’m not actually testing this in a real playing situation. I have channels of prerecorded tones and riffs being played in a loop pedal into the 15w marshall combo amp. I will do a few things with it and plug in at home as well if that might actually matter. I’ll swap out the resistor and pot as recommended but curious… Does the insight from Wilkie change what you wanted me to try? Let me know either way. I’m getting on this now.
This is fun, thanks.
I bridged a 1M over 1&3 and I swear it’s exactly the same. I notice no change one the pot is past MIN. Touch it the slightest bit and that’s the gain for the rest of the sweep. Maybe it’s me, my ears, or my inexperience in high gain circuits. I thank you for the help, We found R11 listed wrong, so that’s a win! Let’s call it even. hahaha. You’re a very decent dude.
I will, if what I’m describing is not supposed to be. I’m still semi new at this. I follow recipes and instructions to cook and build. I am still studying the how and why things are used and what values. I test my circuits here in the lab with a loaded BOSS loop station playing loops and tracks through a marshall 15w combo amp. I’m just here thinking there is little difference in the sound past 8 oclock. It’s more like 7 oclock. I’ll put the 1M in and see what’s what. I was happy with it as is. But let’s see…. Thanks again.
