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Post by bear on Dec 15, 2020 18:21:46 GMT -7
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Post by bear on Jan 3, 2021 16:10:41 GMT -7
I bought another Muff because I'm a crackhead. Big box 2000s version from here in VA and it already has the Boss style 9v jack mod. Good deal at $68
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Post by bear on Jan 14, 2021 5:31:21 GMT -7
I've still got two ideas for Muff circuits and I'm going to see if Smiletone will build them for me. I want one with a mids switch. Maybe we'll call it the Mud Screamer.
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Post by bear on Jan 15, 2021 9:33:17 GMT -7
Modular fuzz! Aaaaaaahhhhhhh!
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Post by bear on Jan 15, 2021 14:25:44 GMT -7
EllisD I thought that was a Bk Butler clone but it looks like it's designed after the Ibanez TK999. Interesting. Behringer makes decent stuff for a good price. Probably sounds awesome. Heres a video about some of their circuits that has that pedal at like 18 mins in. Here's an update for this post. There's another local musician around here who works on amps, and we often trade labor, so I fix his pedals for him. He just gave me an Ibanez TK999US to repair. I opened it up, and it is the same patented BK Butler Tube Drive circuit with an extra control for mids instead of just bass and treble. It sounds killer. He thought it was broken but the input and output jacks are reversed compared to normal pedals so I think he might have just plugged it in wrong. Anyways, I want one now... The tube crunch you can get out of it is incredible sounding. I snagged a late 80s Real Tube by Tube Works. Butler circuit with the mids knob. I'm going to use it to tweak the EQ through the Champ I built since it only has a volume control. |
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Post by bear on Jan 15, 2021 14:26:49 GMT -7
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Post by higs on Jan 27, 2021 18:33:14 GMT -7
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Post by bear on Jan 27, 2021 18:37:10 GMT -7
HYPE
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Post by bear on Jan 27, 2021 18:44:34 GMT -7
I'm back on the train my muff circuit. I wrote out the circuit today stage by stage to get a list of parts to order. My idea is to build a test pedal with sockets so I can plug and play different parts and see how they sound. R&D baby. I'm looking for a smooth sustain that is still articulate, and a mid frequency control to dial out the mid scoop as desired.
I originally wanted to call it MSTR MnFF but I am skewing away from that now due to negative associations with the word master and its connection to mister. Probably going with Chocolate Bear. First comes the build (easy) and then rolling transistors, caps, and resistors (time consuming).
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Post by bear on Jan 27, 2021 20:34:42 GMT -7
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Post by bear on Feb 3, 2021 13:30:57 GMT -7
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Post by bear on Feb 11, 2021 19:36:03 GMT -7
modded another Tube screamer #9 i think. i didnt keep a good log and i think i messed up the numbering at some point and did a duplicate but i counted my 100 pack of resistors and i have 91 left. I sign them with my first name and date them. also this page is blowing my mind. www.ampbooks.com/mobile/amplifier-calculators/ it has calculators for different sections of an amplifier so you can get an idea of what effect changing capacitors and such will have on the amp without having to actually swap in the parts. |
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Post by bear on Feb 24, 2021 17:35:41 GMT -7
 Constructing the Muff test rig (bottom right). Loading in transistors and capacitors, yellow LED beacon is lit, resistors come next. That thing is called a breadboard and the vertical rows are connected so I can layout the circuit and jumper around without having to do any soldering. Once it's working I can start swapping out different values to see how they sound. |
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Post by bear on Feb 25, 2021 17:59:49 GMT -7
 Codename: Chocolate Bear Circuit is mapped and ready for testing, just waiting on the knobs and diodes to come in. I have gone through a bunch of circuit variations and combined what are my favorite versions and sound that I'm going for. I have changed the feedback/filter resistors to adjust how buzzy and fizzy it sounds, the tone control to set how much mid range is "scooped" out and how much high end is reduced when you turn it down, different transistors (2N5088, 2N5089, BC550B), and different diodes. You can even use LEDs for the clipping section, which determines how the signal is distorted. Basically I'm gonna plug a guitar in and sit down with a handful of parts and go nuts to see what variations sound good to me. Eventually I'll get to making a separate mids control. |
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Post by bear on Feb 26, 2021 14:52:05 GMT -7
IT'S ALIVE!
FUCK. YES.
The pots came today so I slapped it all together. I had a couple mistakes to be found like accidentally putting the 1st clipping stage output on the 2nd stage, so it took some fiddling with it until I hunted the problem down. I was getting a faint sound, so I knew it was partially working and then I put in the final jumper and it ROOOAAAAARRRRRRDD to life through the tube amp. Panini has a conference call so I have to stop playing it for an hour...
The diodes aren't the correct ones, I just used what I have on hand until the right ones arrive, but I already started tweaking parts anyways. Using the diagram with the components that most effect the sound (several posts above), I reduced the filter sizes on the clipping sections down to 400pF & 300 from 600 because it allows the really high pinch harmonics to come through. The breadboard works great. I can easily pop parts in and out without unplugging anything.
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Post by Don Swifty on Feb 26, 2021 15:57:00 GMT -7
I´m hyped for some amp Most of my heroes don´t appear on no stamps |
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Post by bear on Feb 27, 2021 8:16:02 GMT -7
Tweaks made for less bass and more clarity. Next up is to reduce the gain in each stage to smooth it out some. Then I will test it on different amps and work on the mids... my neighbors probably think I'm nuts with repetitive riffing but I have to test it on a few licks as my "control". Def in the mad scientist zone where all time stops and I jam for hours
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Post by bear on Feb 27, 2021 13:03:54 GMT -7
Version one is complete... its name is Flask. New idea: connect a control knob to the filter caps as a treble cut.
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Post by bear on Feb 28, 2021 19:26:48 GMT -7
I tried to build a perfboard circuit and failed. Then i built it again but on a breadboard half the size. Success. Sounds the same except slightly less bright maybe. Next up is a point to point version... Then make a Mud Screamer...
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Post by bear on Mar 1, 2021 6:36:09 GMT -7
 Muffket'd |
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